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mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 1 3901080050 jun 2016 011 features o lin 2.x / sae j2602 compliant o operating voltage v sup = 5 ... 27 v o 3 modes: normal, silent and sleep o linear low drop voltage regulator: mlx80030/31 : ? normal mode 3.3v/70ma 2% ? silent mode 3.3v/20ma 2% mlx80050/51 : ? normal mode 5v/70ma 2% ? silent mode 5v/20ma 2 o low current consumption (typ) ? sleep mode 20 ? a ? silent mode noload 45 ? a o output current limitation o lin - bus transceiver ? baud rate up to 20 kbaud ? slew rate control for best eme behaviour ? low slew mode for optimized sae j2602 transmission ? high impedance lin pin in case of loss of ground or battery ? bu s input voltages - 24v to 30v independent from vbat o remote and local wake up source recognition o vcc undervoltage detection at nres output (start - up delay 4ms) ? vres threshold 3.0 v (mlx80030/31); vres threshold 4.1v ( mlx80050/51 ) o programmable window watchdo g (only mlx80031/51) o vsup undervoltage detection (por), over temperature shutdown o txd dominant time out function, standby mode time out after 350ms o automotive temperature range of C 40c to 125c o interface i/os independent from voltage regulator output o enh anced esd robustness according to iec 61000 - 4 - 2 o direct discharge for pin lin >20kv (only lin cap connected) and for pin vbat >15kv o indirect discharge for pin lin >15kv o load dump protected (40v) order code temp. range package delivery remark mlx80050 kdc - caa - 000 - re - 40 - 125 c soic8 reel silent mode enabled mlx80051 klw - caa - 000 - re - 40 - 125 c qfn_wf20/5x5 reel silent mode enabled mlx80030 kdc - caa - 000 - re - 40 - 125 c soic8 reel silent mode enabled mlx80031 klw - caa - 000 - re - 40 - 125 c qfn_wf20/5x5 reel silent mode enabled short description the mlx8005x/3x consist of a low - drop voltage regulator 5v/3.3v/70ma combined with a reset/watchdog unit and a lin bus transceiver. the lin transceiver is suitable for lin bus systems conform to lin specificatio n revision 2.x and sae j2602. the watchdog times of the integrated window watchdog can be adapted on application needs via external resi s- tors. with the help of an external bipolar transistor it is possible to extend the output current of the integrated vol tage regulator. the combination of voltage regulator and bus transceiver as well as watchdog unit makes it possible to d e- velop simple, but powerful and cheap slave nodes in lin bus systems. m l x 8 0 0 3 0 / 5 0 1 e n n r e s l i n g n d r x d t x d 8 7 5 5 4 2 3 v s v c c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 2 3901080050 jun 2016 011 contents 1. list of tables ................................ ................................ ................................ ................................ ................................ 4 2. list of figures ................................ ................................ ................................ ................................ .............................. 4 3. electrical specif ication ................................ ................................ ................................ ................................ ............ 5 3.1. dc c haracteristics ................................ ................................ ................................ ................................ .................... 6 3.2. ac c haracteristics ................................ ................................ ................................ ................................ .................. 11 3.3. t iming diagrams ................................ ................................ ................................ ................................ ...................... 14 4. pin configuration ................................ ................................ ................................ ................................ .................... 15 4.1. mlx80030 and mlx80050 - soic8 ................................ ................................ ................................ ......................... 15 4.2. mlx80031 and mlx80051 in qfn20 ................................ ................................ ................................ ...................... 16 3. functional descri ption ................................ ................................ ................................ ................................ ........... 17 3.1. s upply p in vs ................................ ................................ ................................ ................................ ........................... 19 3.2. en input pin ................................ ................................ ................................ ................................ ............................ 19 3.3. g round pin gnd ................................ ................................ ................................ ................................ ..................... 19 3.4. lin 19 3.5. r eceiver o utput r x d ................................ ................................ ................................ ................................ ............... 19 3.6. t ransmit i nput t x d ................................ ................................ ................................ ................................ ................. 19 3.6.1. txd dominant time - out feature ................................ ................................ ................................ .................. 19 3.7. o utput nres ................................ ................................ ................................ ................................ .......................... 20 3.8. v oltage regulator pin s vcc and rtg ................................ ................................ ................................ ...................... 20 3.9. inh o utput ( only mlx80031/51) ................................ ................................ ................................ ........................... 20 3.10. wake i nput ( only mlx80031/51) ................................ ................................ ................................ ......................... 20 3.11. kl15 i nput ( only mlx80031/51) ................................ ................................ ................................ ........................... 20 3.12. w atchdog t rigger i nput nwdi ( on ly mlx80031/51) ................................ ................................ ........................... 20 3.13. w atchdog o scillator r esistor rb wd ( only mlx80031/51) ................................ ................................ ................... 20 3.14. m ode i nput mode ( only mlx80031/51) ................................ ................................ ................................ .............. 20 4. operational modes ................................ ................................ ................................ ................................ .................. 21 4.1. m odes o verview ................................ ................................ ................................ ................................ ..................... 22 4.2. i nitialisation and s tandby mode ................................ ................................ ................................ .............................. 23 4.3. n ormal m ode ................................ ................................ ................................ ................................ ......................... 23 4.4. s ilent m ode ................................ ................................ ................................ ................................ ............................ 24 4.5. s leep m ode ................................ ................................ ................................ ................................ ............................. 25 4.6. i nit - s tate ................................ ................................ ................................ ................................ ................................ 27 5. wake up procedure s ................................ ................................ ................................ ................................ ................ 28 5.1. w ake u p s ource r ecognition in mlx80031/51 ................................ ................................ ................................ ....... 28 6. functionality ................................ ................................ ................................ ................................ ............................ 29 6.1. reset behaviour of mlx8003 x /5 x ................................ ................................ ................................ .......................... 29 6.2. t hermal s hutdown ................................ ................................ ................................ ................................ ................. 29 6.3. vs under voltage reset ................................ ................................ ................................ ................................ ........... 30 6.4. lin - t ransceiver ................................ ................................ ................................ ................................ ...................... 30 6.5. v olta ge r egulator ................................ ................................ ................................ ................................ ................. 31 7. window - watchdog (only mlx80 031/51) ................................ ................................ ................................ .............. 32 7.1. mlx80031/51 w atchdog b ehaviour ................................ ................................ ................................ ...................... 32 7.2. a ll watchdog start - up scenarios ................................ ................................ ................................ ............................ 33 7.2.1. after power - on and initialization ................................ ................................ ................................ ................ 33
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 3 3901080050 jun 2016 011 7.2.2. wake up indicated transition to standby mode from sleep or silent mode ................................ .............. 33 7.2.3. undervoltage reset on vcc on normal mode or silent mode ................................ ................................ .... 33 7.2.4. en indicated transition from silent mode to normal mode ................................ ................................ ....... 33 7.3. c alculation of w atchdog p eriod ................................ ................................ ................................ ............................ 34 8. fail - safe features ................................ ................................ ................................ ................................ ..................... 36 9. applicat ion hints ................................ ................................ ................................ ................................ ...................... 37 9.1. s afe o perating a rea ................................ ................................ ................................ ................................ ................ 37 9.2. a pplication c ircuitry ................................ ................................ ................................ ................................ ............... 38 10. esd and emc ................................ ................................ ................................ ................................ ............................. 39 10.1. r ecommendations for a ctuator products ................................ ................................ ................................ ............ 39 10.1.1. automotive qualification test pulses ................................ ................................ ................................ ......... 40 10.1.2. test pulses on supply lines ................................ ................................ ................................ ........................ 40 10.1.3. test pulses on pin lin ................................ ................................ ................................ ................................ . 41 10.1.4. test p ulses on signal lines ................................ ................................ ................................ ........................... 41 10.1.5. emv test pulse definition ................................ ................................ ................................ ........................... 42 10.2. t ypical a pplication c ircuitry ................................ ................................ ................................ ................................ . 43 10.2.1. external circuitry on supply lines ................................ ................................ ................................ ............... 44 10.2.2. external circuitry on lin lines ................................ ................................ ................................ .................... 44 10.2.3. external circuitry on signal lines ................................ ................................ ................................ ................ 44 11. mechanical speci fication ................................ ................................ ................................ ................................ ..... 45 11.1. soic8 package ................................ ................................ ................................ ................................ ...................... 45 11.2. qfn20 5 x 5 package ................................ ................................ ................................ ................................ ............... 46 12. revision history ................................ ................................ ................................ ................................ ...................... 47 13. standard informa tion regarding manuf acturability of mele xis products with di fferent soldering processes ................................ ................................ ................................ ................................ ................................ ........ 49 14. disclaimer ................................ ................................ ................................ ................................ ................................ 50
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 4 3901080050 jun 2016 011 1. list of tables table 1: absolute maximum ratings ................................ ................................ ................................ ................................ ... 5 table 2: voltage reg ulator and reset unit ................................ ................................ ................................ ......................... 6 table 3: lin dc characteristics ................................ ................................ ................................ ................................ ......... 10 table 4: ac characteristics ................................ ................................ ................................ ................................ ............... 11 table 5: mlx80050/30 pin list in soic8 ................................ ................................ ................................ ............................ 15 table 6: mlx80051/31 pin list in qfn20 ................................ ................................ ................................ .......................... 16 table 7: mlx80050/30 op eration modes ................................ ................................ ................................ ........................ 22 table 8: mlx80051/31 operation modes ................................ ................................ ................................ ........................ 22 table 9: parameters of window watchdog ................................ ................................ ................................ ...................... 35 table 10: window watchdog timing selection ................................ ................................ ................................ ................ 35 table 11: test pulses supply line ................................ ................................ ................................ ................................ ..... 40 table 12: test pulses lin ................................ ................................ ................................ ................................ .................. 41 table 13: test pulses signal lines ................................ ................................ ................................ ................................ ...... 41 table 14: test pulses shapes iso7637 - 2 ................................ ................................ ................................ ........................... 42 table 15: test pulses shapes iso7637 - 3 ................................ ................................ ................................ ........................... 43 table 12: soic8 dimensions ................................ ................................ ................................ ................................ .............. 45 table 13: qfn20 package dimensi ons ................................ ................................ ................................ .............................. 46 2. list of figures figure 1: lin propagation delays ................................ ................................ ................................ ................................ ...... 14 figure 2: lin duty cycles ................................ ................................ ................................ ................................ ................... 14 figure 3: mlx80050/30 block diagram ................................ ................................ ................................ ............................ 17 figure 4: mlx80051/31 block diagram ................................ ................................ ................................ ............................ 18 fig ure 5: mlx8005x3x state diagram of modes of operation ................................ ................................ ........................... 21 figure 6: lin wake - up from silent mode ................................ ................................ ................................ .......................... 24 figure 7 local wake - up from sil ent mode via wake ................................ ................................ ................................ ....... 25 figure 8: remote wake - up from sleep mode ................................ ................................ ................................ ................... 26 figure 9: local wake - up from sleep mode ................................ ................................ ................................ ....................... 27 figure 10: vcc reset behavior ................................ ................................ ................................ ................................ .......... 29 figure 11: mlx80031/51 watchdog behavior ................................ ................................ ................................ .................. 32 figure 12: w atchdog timing ................................ ................................ ................................ ................................ ............. 33 figure 13: watchdog open and close window tolerances ................................ ................................ ................................ 34 figure 14: safe operating area for mlx80030/50 in soic - 8 for vsup up to 18v ................................ .............................. 37 figure 15: safe operating area for mlx80031/51 in qfn20 for vsup up to 18v ................................ .............................. 38 figure 16: application circui t with mlx80050 or mlx80030 (slave node) ................................ ................................ ....... 38 figure 17: application circuit with mlx80031 or mlx80051 (slave node) ................................ ................................ ....... 39 figure 19: so ic8 drawing ................................ ................................ ................................ ................................ ................. 4 5 figure 20: qfn20 drawing ................................ ................................ ................................ ................................ ................ 46
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 5 3901080050 jun 2016 011 3. electrical specification all voltages are referenc ed to ground (gnd), positive currents flow into the ic. absolute m aximum ratings table 1 : a bsolute maximum ratings parameter symbol condition min max unit supply voltage at vs v s respective to gnd - 0.3 40 v transient voltage iso 7637/2 pulse 1, 2 - 100 100 v transient voltage iso 7637/2 pul se 3a; 3b, coupling 1nf - 150 100 v dc v oltage lin v lin _dc respective to gnd and vs loss of ground (vgnd = vs) - 2 0 - 30 40 40 v dc v oltage wake v wake _dc respective to gnd and vs loss of ground (vgnd = vs) - 2 0 - 30 40 40 v dc voltage inh v in h_dc - 0.3 v s +0 .3 v dc voltage vcc v vcc_dc - 0.3 7 v dc voltage rtg v rtg_dc - 0.3 7 v input voltage at low voltage i/os (en, txd, rxd, nres, wdi, rb wd , mode ) v in - 0.3 7 v esd voltage v esdiec iec 61000 - 4 - 2 , direct esd pin lin with lin cap 220pf pin vs to gnd 20 15 kv v esdiecind iec 61000 - 4 - 2 , indirect esd pin lin with lin cap 220pf 15 kv v esdhbm hbm (cdf - aec - q100 - 002) pin lin pin wake, kl15, vs other pins 6 4 2 kv kv kv v esdcdm cdm (aec - q100 - 011) 500 v power dissipation p 0 internal limited , see also chapter 9.1 thermal resistance from junction to ambient r thja _soic8 jedec 1s0p board , no air flow 1 50 k/w r thja _qfn20 jedec 1s0p board , no air flow 50 k/w junction temperature t j - 40 150 c storage temperature t st g - 55 150 c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 6 3901080050 jun 2016 011 3.1. dc characteristics unless otherwise specified all values in the following tables are valid for v s = 5 to 27 v and t amb = - 40 to 125 o c. all voltages are referenced to ground (gnd), positive currents flow into the ic. for mlx80031/51 apply: rtg connected to vcc. table 2 : voltage regulator and reset unit parameter symbol condition min typ max unit t [1] supply voltage pin vs nominal dc operating voltage v s 5 27 v a 1.01 v s under voltage reset v suvr_off v s ramp up 4.1 5.0 v a 1.02 v s under voltage reset v suvr_on v s ramp down 3.7 4.8 v a 1.03 v s under voltage reset hyster e- sis v suvr_hys v suvr_off - v suvr_on 0. 04 0.3 0.7 v a supply currents mlx80030, mlx80050 2.00 supply current, normal mode i vs_nor v s ? 14v, v en > 2v , lin recessive, no load at vcc 400 750 1500 ? a a 2.01 supply current, sleep mode i vs_sleep v s ? 14 v t a = - 40 c t a = 25 c t a ? 85 c t a ? 125 c 15 30 20 30 45 ? a a 2.02 supply current, silent mode i vs_sil v s ? 14 v, lin recessive no load at vcc t a = - 40 c t a = 25 c t a ? 85 c t a ? 125 c 65 85 95 100 125 ? a a supply currents mlx80031, mlx80051 2.00 supply current, normal mode i vs_nor v s ? 14v, v en > 2v ,rb wd = 60k lin recessive, no load at vcc 400 750 1500 ? a a 2.01 s upply current, sleep mode i vs_sleep v s ? 14 v t a = - 40 c t a = 25 c t a ? 85 c t a ? 125 c 15 30 20 30 45 ? a a 2.02 supply current, silent mode i vs_sil v s ? 14 v, lin recessive no load at vcc t a = - 40 c t a = 25 c t a ? 85 c t a ? 125 c 65 8 5 95 100 125 ? a a
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 7 3901080050 jun 2016 011 voltage regulator pin vcc mlx80050, mlx80051 (rtg connected to vcc) 3.01 output voltage vcc v ccn5 6v ? v s ? 18v 1ma ? i load ? 70ma t a = 25c t a = - 40c to 125c 4.90 4.85 5.0 5.10 5.15 v a output voltage v cc under distur bances functional state a v ccndis5 6v ? v s ? 18v, t a = 25c r load = 330 ? 4.75 5.25 v c 3.02 drop - out voltage [ 2 ] v d10_5 v s ? 4v , i vcc = 10ma 75 120 mv c 3.03 v d30_5 v s ? 4v , i vcc = 30ma 220 350 mv c 3.04 v d70_5 v s ? 4v , i vcc = 70ma 500 800 mv c 3.05 line regulation v lnr5 6v ? v s ? 18v , i vcc = 30ma 6v ? v s ? 18v, i vcc = 7 0ma 20 100 mv a 3.06 load regulation v ldr10_5 1 ma < i load < 10 ma 50 mv a 3.07 v ldr30_5 1 ma < i load < 30 ma 90 mv a 3.08 v ldr70_5 1 ma < i load < 70 ma 150 mv a 3.09 output current limitation [ 3 ] i vcclim_5 v s > 6v t a = - 40 c 25 c ? t a ? 125 c - 1 35 - 150 - 110 - 75 - 80 ma a 3.10 load capacity c load 2.2 22 ? f d mlx80030, mlx80031 (rtg connected to vcc) 3.01 output voltage vcc v ccn3 4 v ? v s ? 18 v 1m a ? i load ? 70 ma t a = 25 c t a = - 40 c to 125 c 3.234 3.201 3.3 3.366 3.399 v a output voltage v cc under disturbances functional state a v ccndis3 6 v ? v s ? 18 v, t a = 25 c r load = 330 ? 3.135 3.465 v c 3.02 drop - out voltage [ 2 ] v d10_3 v s ? 3 v , i vcc = 10 ma 100 mv c 3.03 v d30_3 v s ? 3 v , i vcc = 30 ma 300 mv c 3.04 v d70_3 v s ? 3 v , i vcc = 70 ma 700 mv c 3.05 line regulation v lnr_3 5 v ? v s ? 18 v , i vcc = 30ma 5 v ? v s ? 18v, i vcc = 7 0ma 20 100 mv a 3.06 load regulation v ldr10_3 1 ma < i load < 10 ma 50 mv a 3.07 v ldr30_3 1 ma < i load < 30 ma 90 mv a 3.08 v ldr70_3 1 ma < i load < 70 ma 150 mv a 3.09 output current limitation [ 3 ] i vcclim_3 v s > 4 v t a = - 40 c 25 c ? t a ? 125 c - 135 - 150 - 110 - 75 - 80 ma a 3.10 l oad capacity c load 2.2 22 ? f d
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 8 3901080050 jun 2016 011 output pin nres 4.01 output voltage low v ol_nres i nres = 1 ma 0.25 v a 4.02 leakage current low i leak_rxd v nres = 0 v - 5 5 a a 4.03 leakage current high i leak_rxd v nres = v cc - 5 5 a a output voltage high nres under disturbances to fulfi l functional state a v oh_nres r load = 2.7 k to vcc v cc - 1 v c mlx80050, mlx80051 5.01 vcc reset threshold on nres pin v res5v t > t rr 3.9 4.10 4.3 v a 5.02 v res hysteresis v reshys = |v res(on) C v res(off) | v reshys5v 200 mv c mlx80030, mlx80031 5.01 vcc reset threshold on nres pin v res3v t > t rr 2.75 2.95 3.15 v a 5.02 v res hysteresis v reshys = |v res(on) C v res(off) | v reshys3v 100 mv c input pin en 6.01 input voltage low v il_en 0.8 v a 6.02 input voltage high v ih_en 2.0 v a 6.03 h ysteresis v hys_en 50 100 7 00 mv c 6.04 pull - down resistor r pd_en v en =vcc 50 125 250 k ? a input pin wake (mlx80031, mlx80051) 7.01 high level input voltage v ih_wake sleep mode v s - 1v v a 7.02 low level input voltage v il_wake sleep mode v s - 3.3v v a 7.03 pull up current wake i wake_pu normal & sleep - 30 - 1 5 - 1 a a 7.04 leakage current wake high i wake_lk v s = 18v - 5 5 a a input pin kl15 (mlx80031, mlx80051) 8.01 high level input voltage v ih_kl15 rv = 50k ? 4 v s +0.3v v a 8.02 low level input volt age v il_kl15 rv = 50k ? - 1 2 v a 8.03 pull down current kl15 i kl15_pd 30 65 a a input pin mode (mlx80031, mlx80051) 23.01 input voltage low v il_mode 0.8 v a 23.02 input voltage high v ih_mode 2.0 v a 23.03 hysteresis v hys_mode 50 100 6 00 mv c 23.04 pull - down resistor r pd_mode v mode = vcc 200 600 k ? a
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 9 3901080050 jun 2016 011 input pin nwdi (mlx80031, mlx80051) 9.01 input voltage low v il_nwdi 0.8 v a 9.02 input voltage high v ih_nwdi 2.0 v a 9.03 hysteresis v hys_nwdi 50 100 6 00 mv c 9.04 pull - up resistor to vcc r pu_nwdi vn wdi = 0v 125 250 375 k ? a 9.05 min low pulse width t minlow_nwdi one wd_osc clock period 1 1 d watchdog oscillator pin rbwd (mlx80031, mlx80051) 10.01 voltage at rb wd v rbwd i out = - 50 ? a 1.2 v a 10.02 range of rb wd resistance rb w d 20 150 k ? b 10.03 rb wd short resistance thres h- old to enable fail - safe state rb wdsh see paragraph 7.3 0 330 ? b output inh (mlx80031, mlx80051) 11.01 on resistance r on_inh v s = 12v 20 6 0 ? ? a 11.02 leakage current inh high i leakh_inh sleep mode, v i nh = 18v, v s = 18v - 5 5 a ? a 11.03 leakage current inh low i leakl_inh sleep mode, v inh = 0v, v s = 18v - 5 5 a ? a thermal protection thermal shutdown t jshd 155 170 190 c d thermal hysteresis t jhys 10 30 c d notes: [1] a = 100% serial test, b = operati ng parameter, c = characterization data , d = value guaranteed by design [2] the nominal vcc voltage is measured at vsup = 12v. if the vcc voltage is 100mv below its nominal value then the voltage drop is vd = vsup C vcc [3] functionality range o f current limitation at silent mode is limited by reset threshold vres. below them the ic change to normal mode. validity for ivcc_maxsil: vccn (min) vcc vres
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 10 3901080050 jun 2016 011 table 3 : lin dc characteristics parameter symbol condition min typ max unit t [1] general 12.01 pull up current lin (recessive) i inlinpu v lin = 18 v, v s = 6v 80 ? a a 12.02 pull up resistor lin r linpu v s = 12v, v lin = 0v 20 30 60 k ? a 12.03 reverse current lin (dominant) i inlindom v s = 12v, v lin = 0v - 400 a a 12.04 reverse current lin (recessive) i inlinrec v lin ? v s, 8v ? v lin ? 18v, 8v ? v s ? 18v 0 23 a a 12.05 reverse current lin (loss of battery) i inlin_lob v s = 0v, 0v ? v lin ? 18v 0 23 a a 12.06 reverse current lin (loss of ground) i inlin_lo g v s = 12v, 0v ? v lin ? 18v - 1 0 50 a a voltage drop serial diode v serdiode 0.4 0.7 1.0 v d battery shift v shift_bat related to vs 0 11.5 % d ground shift v shift_gnd related to vs 0 11.5 % d ground - battery shift difference v shift_diff related t o vs 0 8 % d receiver 12.07 receiver dominant voltage v bus dom 7.0 v ? v s ? 18 v 0.4*v s v a receiver recessive voltage v bus rec 0.6*v s a 12.08 centre point of receive r threshold v thr_cnt = (v thr_rec +v thr_dom )/2 v thr_cnt 0.475*v s 0.5*v s 0.525*v s a 12.09 receiver hysteresis v hys = v thr_rec - v thr_dom v hys 0.15*v s 0.175*v s a transmitter 12.10 transmitter dominant voltage voi bus r load = 500 ? , v s = 5v 0 1.2 v d r load = 500 ? , v s >= 7v 0 0.2*v s a 12.11 current limitation lin i lim v lin = v s , txd = 0v 40 120 200 ma a 12.12 transmitter recessive voltage voh bus no load, v en = 0/5v, vtxd = 5v 0 . 8*v s v s v a input/output pin txd 13.01 i nput voltage low txd v il_txd rising 0.8 v a 13.02 input voltage high txd v ih_txd 2 v a
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 11 3901080050 jun 2016 011 13.03 hysteresis v hys_txd 50 7 00 mv c 13.04 pull - up resistor to vcc r pu_txd v txd = 0v 125 250 375 k ? a 13.06 low level output current i ol_txd local wake - up r equest; standby mode; v txd = 0.4v 1.5 ma a output pin rxd 14.01 output voltage low rxd v ol_rxd i rxd = 2 ma 0. 6 v a 14.02 pull - up resistor to vcc r pu_rxd v rxd = 0v 3 5 7 k ? a 14.03 leakage current high i leak_rxd v rxd = vcc - 5 5 a a output volta ge high rxd under disturbances to fulfil functional state a v oh_rxd r load = 2.7k to vcc v cc - 1 v c notes: [1] a = 100% serial test, b = op erating parameter, c = characterization data , d = value guaranteed by design 3.2. ac characteristics 6v ? v s ? 27 v, - 40c ? t a ? 125c, rtg connected to vcc, unless otherwise specified table 4 : ac characteristics parameter symbol condition min typ max unit t [1] reset parameter on nres 16.01 reset time t res v s = 14v 2.5 4 5.5 m s a 16.02 reset rising time t rr v s = 14v 3.0 6.5 12 ? s a watchdog parameter on nres (mlx80031, mlx80051) 17.01 watchdog - oscillator period t wdosc20 rb wd = 20k ??? 1% 6.87 8.09 9.30 ? s ? a 17.02 t wdosc60 rb wd = 51k ??? 1% 16.06 18.90 21.73 ? s ? a 17.03 t wdosc100 rb wd = 100k ? ?? 1% 30.58 35.98 41.37 ? s ? a 17.04 t wdosc150 rb wd = 150k ??? 1% 45.40 53.41 61.42 ? s ? a watchdog close window t cw tcw = cycles * twdosc 1053 cycles ? d watchdog open window t ow tow = cycles * twdosc 1105 cycles ? d 17.05 watchdog reset low time t wdres 3 4 5 m s ? a watchdog lead window t ldt tows = cycles * twdosc 7895 cycles ? d 17.06 watchdog safety oscillator t wdsafety rbwd open / rbwd gnd 30 50 75 s a
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 12 3901080050 jun 2016 011 parameter symbol condition min typ max unit t [1] wake - up and mode control 18.01 remote wake - up filter time t wu_remote 30 70 150 ? s ? a 18.02 wake - up filter time on wake (only mlx80051,mlx80031) t wu_wake sleep or silent mode, wake falling edge 10 50 ? s a 18.03 wake - up filter time on kl15 (only mlx80051,mlx80031) t wu_kl15 sleep or silent mode, kl15 rising edge 80 168 250 ? s ? a 18.04 propagation dela y from normal mode to sleep mode via en t pd_sleep v en = 0v 5 15 20 ? s ? a 18.05 propagation delay from standby mode to normal mode via en t pd_norm v en = 5v 5 15 20 ? s ? a 18.06 propagation delay from silent mode to normal mode via en t pd_sil_n v en = 5v si licon revision c 5 15 40 ? s ? a 18.07 propagation delay: go to silent mode after en=h/l t pd_sil check falling edge on rbwd , en = 0v silicon revision c 20 ? s ? a setup time txd to en for low slew mode t set_txd_en 5 ? s b hold time txd after en for low slew mode t hold_txd_en 20 ? s b 18.08 debouncing time en t deb_en 2 5 20 ? s a 18.09 txd dominant time out t txd_to normal mode, v txd = 0v 27 60 ms a 18.10 standby time out t sby_to standby mode, v en = 0v 150 500 ms a 18.11 wake up time vs. en t wu_en wake form sleep via en=l/h 2 5 20 ? s a general lin parameter 19.01 receiver propagation delay lin - > rxd t dr_rxd t df_rxd c l(rxd) = 50 pf 6 ? s a 19.02 symmetry prop. delay lin - >rxd t dsym_rxd t dr_rxd - t df_rxd - 2 2 ? s a 19.03 receiver debouncing tim e t deb_lin 1.5 2.8 4.0 ? s d
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 13 3901080050 jun 2016 011 19.04 slew rate rising edge lin dv/dtrise normal mode lin - load: 1k? / 1nf 1.0 1.5 2.5 v/ ? ? c 19.05 slew rate falling edge lin dv/dtfall - 2.5 - 1.5 - 1.0 v/ ? ? c 19.06 slew rate rising edge lin dv/dtrise low slew mode lin - load: 1k ? / 1nf 0.3 0.8 1.3 v/ ? ? c 19.07 slew rate falling edge lin dv/dtfall - 1.3 - 0.8 - 0.3 v/ ? ? c internal capacity c lin pu lse at lin via 10kohm with 0/10 v; vs = open 25 35 pf d lin transceiver parameter according to lin physical layer spec. rev. 2.0 , table 3.4 (20kbit/s) conditions: normal slew mode; v s =7.0v to 18v; lin loads: 1k ? /1nf; 660 ? /6.8nf; 500 ? /10nf txd signal: t bit = 50s, t wh = t wl = t bit ; t rise = t fall < 100ns minimal recessive bit time t rec(min) 40 50 58 ? s maximum recessive bi t time t rec(max) 40 50 58 ? s 20.01 duty cycle 1 d 1 d 1 = t rec(min) / (2*t bit ) 0.396 a 20.02 duty cycle 2 d 2 d 2 = t rec(max) / (2*t bit ) 0.581 a transceiver parameter according to lin physical layer spec. rev. 2.0, table 3.4 (10.4kbit/s) conditions : low slew mode; v s =7.0v to 18v; lin loads: 1k ? /1nf; 660 ? /6.8nf; 500 ? /10nf txd signal: t bit = 96s, t wh = t wl = t bit ; t rise = t fall < 100ns minimal recessive bit time t rec(min) 80 96 113 ? s maximum recessive bit time t rec(max) 80 96 113 ? s 21. 01 duty cycle 1 d 3 d 3 = t rec(min) / (2*t bit ) 0.417 a 21.02 duty cycle 2 d 4 d 4 = t rec(max) / (2*t bit ) 0.590 a lin transceiver parameter according to sae j2602 (10.4kbit/s) conditions: low slew mode; v s =7.0v to 18v; lin loads: 1k ? /1nf;660 ? /6.8nf; 500 ? /10nf txd signal: t bit = 96s, t wh = t wl = t bit ; t rise = t fall < 100ns 22.01 minimal recessive delay txd - > lin t x_rec_min 48 ? s a 22.02 maximum recessive delay txd - > li n t x_rec_max 48 ? s a 22.03 minimal dominant delay txd - > li n t x_dom_ min 48 ? s a 22.04 maximum dominant delay txd - > lin t x_dom_max 48 ? s a 22.05 maximum rec. to dom. delay t r_d_max t x_rec_max - t x_dom_min 15.9 ? s a 22.06 maximum dom. to rec. delay t d_r_max t x_dom_max - t x_rec_min 17.2 ? s a notes: [1] a = 100% serial test, b = operati ng parameter, c = characterization data , d = value guaranteed by design
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 14 3901080050 jun 2016 011 3.3. timing diagrams figure 1 : lin propagation delays figure 2 : lin duty cycles t x d l i n t d f _ t x d r x d v b u s 9 5 % 5 0 % t d r _ t x d 5 % 5 0 % t d f _ r x d t d r _ r x d 1 0 0 % 0 % 5 0 % 5 0 % t r a n s c e i v e r _ d e l a y s . v s d t x d l i n v s u p 5 8 . 1 % ( 6 1 . 6 % ) t i m i n g _ l i n 2 0 . v s d 2 8 . 4 % ( 2 5 . 1 % ) 1 0 0 % 7 4 . 4 % ( 7 7 . 8 % ) 4 2 . 2 % ( 3 8 . 9 % ) t d o m ( m a x ) t d o m ( m i n ) t r e c ( m i n ) t r e c ( m a x ) 0 % v s s 5 8 . 1 % ( 6 1 . 6 % ) 2 8 . 4 % ( 2 5 . 1 % ) t b i t t b i t l e v e l f o r l s m i n b r a c k e t s t x _ d o m _ m a x t x _ d o m _ m i n t x _ r e c _ m a x t x _ r e c _ m i n
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 15 3901080050 jun 2016 011 4. pin configuration 4.1. mlx80030 and mlx80050 - soic8 table 5 : mlx80050/30 pin list in soic8 pin name io - typ description 1 vs p battery supply voltage 2 en i mode contr ol pin, enables the normal operation mode when high 3 gnd g ground 4 lin i/o lin bus transmitter/receiver pin, (low = dominant) 5 rxd i/o received data from lin bus, low in dominant state ; internal pull - up resistor 6 txd i/o transmit data input (low = dominant) 7 nres o undervoltage reset output (open drain), low active 8 vcc p voltage regulator output m l x 8 0 0 3 0 / 5 0 1 e n n r e s l i n g n d r x d t x d 8 7 5 5 4 2 3 v s v c c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 16 3901080050 jun 2016 011 4.2. mlx80031 and mlx80051 in qfn20 table 6 : mlx80051/31 pin list in qfn20 pin name io - typ description 1 en i mode control pin, enables the normal operation mode when high 2 nc not connected 3 nwdi i watchdog trigger input; negative edge; pull - up 4 wake i high voltage input for local wake up, negative edge triggered 5 gnd g ground 6 nc not connected 7 lin i/o lin bu s transmitter/receiver pin, (low = dominant) 8 nc not connected 9 rxd i/o received data from lin bus, low in dominant state; internal pull - up resistor 10 inh o high side switch; high voltage 11 txd i/o transmit data input (low = dominant) 12 nres o reset output (open drain), low active 13 rb wd i/o bias resistor for watchdog oscillator 14 nc not connected 15 mode i input to control window watchdog 16 kl15 i high voltage input for local wake up, positive edge triggered 17 nc not connected 18 vc c i voltage regulator sense input 19 rtg p voltage regulator output 20 vs p battery supply voltage ep g exposed pad should be connected to ground
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 17 3901080050 jun 2016 011 3. functional description the mlx8003x/5x consists of a low drop 3.3v/5v voltage regulator capable to drive 70ma and a lin bus transceiver, which is a bi - directional bus interface for data transfer between lin bus and the lin protocol controller. additionally integrated is a window - watchdog/reset unit with a fixed power - on - reset delay of 4 ms and a n adjustable watchdog time defined by an external bias resistor. figure 3 : mlx80050/30 block diagram v s e n r e s e t g e n e r a t o r m o d e c o n t r o l a u x . s u p p l y b g a d j u s t m e n t c u r r e n t l i m i t a t i o n c o n t r o l a m p l i f i e r t e m p . p r o t e c t i o n r e s e t p o r - t i m e r t s h d v b g n r e s 4 . 1 v / 2 . 9 v l i n 3 0 k r e c - f i l t e r w a k e - f i l t e r r x d r e c e i v e r v s u p d r i v e r c o n t r o l s b y t x d p o r t x d - t i m e o u t s b y t r a n s m i t t e r v s s 7 0 ? s v a u x r x d - b u f f e r r e s e t - b u f f e r p o r u n d e r - v o l t a g e r e s e t v s u v r v c c v b g r c o s c . f o s c s t a n d b y t i m e r 5 k v c c v c c 2 5 0 k 3 5 0 k 5 z z 1 6 b i t 6 b i t r e g c a l i b 4 b i t b g 3
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 18 3901080050 jun 2016 011 figure 4 : mlx80051/31 block diagram v s e n r e s e t g e n e r a t o r a u x . s u p p l y b g a d j u s t m e n t c u r r e n t l i m i t a t i o n c o n t r o l a m p l i f i e r t s h d r e s e t p o r - t i m e r t s h d v b g n r e s 4 . 1 v / 2 . 9 v l i n 3 0 k r e c - f i l t e r w a k e - f i l t e r 7 0 ? s r x d r e c e i v e r v s d r i v e r c o n t r o l s b y t x d u v r _ p o r w a k e w d o s c s b y t r a n s m i t t e r v s s v s s v a u x v a u x v a u x r x d - b u f f e r r e s e t - b u f f e r w d i _ s i g v c c p o r u n d e r - v o l t a g e r e s e t v s u p u v r 5 r t g r b w d w a k e _ s i g w i n d o w w a t c h d o g z z 1 6 b i t 6 b i t r e g c a l i b z z c o n t r o l v b g v b g 5 v / 3 . 3 v n w d i 2 5 0 k v a u x r c o s c . v a u x t e s t l o g i c 4 b i t b g 3 f o s c s t a n d b y t i m e r r x d - c o n t r o l m o d e c o n t r o l t x d - t i m e o u t t i m e r t o _ r x d r x d _ o u t t x d _ o u t 3 5 0 k v s f w d o s c 9 1 k h z s b y v a u x p o r v a u x p o r v c c 5 k v c c v c c m o d e 2 5 0 k k l 1 5 k l 1 5 _ s i g 2 5 0 k i n h v s v c c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 19 3901080050 jun 2016 011 3.1. supply pin vs vs is the operational voltage pin of mlx8005x/3x. the voltage range is vs = 6 to 18v. after switching on vs, the mlx8003x/5x starts at standby mode and the vcc voltage regulator ramps up. an u ndervoltage detection unit prevent an undefined operation for vs < 4v . vs - power - on if vs is switched on, the mlx8003x/5x starts in standby mode. a combination of dynamic por and under voltage reset circuitry generates a por signal, which switches the mlx8003x/5x on. this power on behaviour is independent from the status o f the en - pin. power - on reset and under - voltage reset operate independent from each other, which secures the independence from the rise time of vs. 3.2. en input pin the enable input is the mode control pin of mlx8003x/5x in combination with the txd input . the m lx8003x/5x is switched into the sleep mode with a falling edge and into normal mode with a rising edge at the en pin. the state machine goes to normal mode after t res (see also table 4 : ac characteristics ). the nor mal mode will be kept as long as en remains high. the normal mode can be entered from standby mode, when the pin en is driven high. to prevent unwanted mode transitions, the en input contains a debounce filter as specified (t en_deb ). the pin en contains a weak pull down resistor. the input thresholds are compatible to 3.3v and 5v supply systems. mlx80031/51: additionally the positive edge on pin en results in an immediate reset of the active low interrupt on pin rxd as well as the wake - up source recognitio n flag on pin txd. 3.3. ground pin gnd this is the reference pin of the ic. the absence of gnd connection will not influence or disturb the communication b e- tween other lin bus nodes. 3.4. lin this b idirectional pin consist s of a low side driver in the output path an d a high - voltage comparator in the input path. furthermore is integrated a lin pull - up resistor between lin and vs pin. low side driver consist a cu r- rent limitation. 3.5. receiver output rxd the pin rxd is a buffered open drain output. output signals can be shi fted by the external pull up resistor to 3.3v and 5v supply systems. 3.6. transmit input txd the transmit data stream of the lin protocol controller applied to the pin txd is converted into the lin bus signal with slew rate control in order to minimize electro magnetic emissions. the pin txd contains a weak pull up resistor. the input thresholds are compatible to 3.3v and 5v supply systems. to enable the transmit path, the txd pin has to be driven recessive (high) after or during the normal mode has been e n- tere d. 3.6.1. txd dominant time - out feature with the first dominant level on pin txd after the transmit path has been enabled, the dominant time - out counter is started. in case of a faulty blocked permanent dominant level on pin txd the transmit path will be disabled after the specified time t txd_to . the time - out counter is reset by the first negative edge on pin txd.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 20 3901080050 jun 2016 011 3.7. output nres the nres pin outputs the reset state as well as the watchdog condition in mlx80031 and mlx80051. 3.8. voltage regulator pins vcc and rtg the mlx8 00 30/50 has an integrated low drop linear regulator with a p - channel - mosfet as driving transistor. this reg u- lator outputs a voltage of 5v 2% (mlx80050/51) or 3.3v 2% (mlx80030/31) with a load current of max. 70ma. the current limitation unit limits the o utput current for short circuits or overload to 130ma by decreasing the vcc voltage. this way the power dissipation is held constant at a maximum value. the voltage regulator has two pins, output pin rtg and sense input pin vcc. for mlx80030/50 both, rtg a nd vcc, are commonly bonded to pin vcc on the package. devices mlx80031/51 has both pins bonded and provides the possibility to use an external npn transistor to boost the maximum load current. in this case the basis of the npn transistor has to be connect ed to the rtg pin and the emitter to the vcc pin. in case of using the internal voltage regulator, both pins have to be connected to each other. 3.9. inh output ( only mlx80031/51) inh switches to high (vs connected to inh) in case of standby or normal mode. inh is switched off at silent and sleep mode. the pin will be used for switch on an external power supply or for switch off the external 1k master resistor in master node applications. 3.10. wake input ( only mlx80031/51) high voltage input pin for local wake - up fun ctionality. with a falling edge on wake the ic wakes - up from silent mode or sleep mode to standby mode. the pin wake provides a weak pull up current source towards vs which provides a high level on the pin in case of open circuit failures or if no local wa ke - up feature is required. in such applications it is recommended to connect the pin wake directly to pin vs in order to prevent influences due to emi. 3.11. kl15 input ( only mlx80031/51) high voltage input pin for local wake - up functionality. with a rising edge on kl15 the ic wakes - up from silent mode or sleep mode to standby mode. the pin kl15 provides a weak current sink towards gnd which provides a low level on the pin in case of open circuit failures or if no local wake - up feature is required. in such applic ations it is recommended to connect the pin kl15 d i- rec t ly to gnd in order to prevent influences due to emi. kl15 is typically connected to the ignition terminal and gene r- ates a local wake - up at start of ignition. 3.12. watchdog trigger input nwdi ( only mlx80031/ 51) this input is used to trigger the integrated window watchdog in mlx80031/51. every falling edge on nwdi in watchdog open window is used to reset the watchdog timer. an internal pull up resistor of 250k secures a stable high condition if this pin is ope n. the nwdi input is a low voltage cmos input. the minimum low time of nwdi is one wd_osc clock period to allow falling edge detection. 3.13. watchdog oscillator resistor rb wd ( only mlx80031/51) a resistor between rbwd and gnd defines the window watchdog times a s trigger time. 3.14. mode input mode ( only mlx80031/51) special pin for to disable the window watchdog function. for normal watchdog operation connect the mode pin to gnd directly or via external resistor. with mode pin on 3.3v/5v the window watchdog is switche d off.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 21 3901080050 jun 2016 011 4. operational modes the mlx8003x/5x provides four main operating modes standby, normal, silent and sleep. the main modes are fixed states defined by basic actions (vs start, en or wake - up). figure 5 : mlx8005x3x state diagram of modes of operation s l e e p - m o d e e n = h / l & t x d = h v s u p p o w e r o n n o r m a l m o d e s i l e n t m o d e e n = l / h [ 1 ] s e t s l e w m o d e : n o r m a l = > e n = l / h & t x d = h ( d e f a u l t ) l o w s l e w = > e n = l / h & t x d = l e n = h / l & t x d = l l o c a l w a k e - u p o r r e m o t e w a k e - u p o r e n = l / h r e g u l a t o r o n l i n t r a n s m i t t e r o f f l i n t e r m i n a t i o n 3 0 k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - r x d = h i g h t x d = h i g h r e g u l a t o r o f f l i n t r a n s m i t t e r o f f l i n t e r m i n a t i o n 2 0 0 k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - r x d : f l o a t i n g ( 0 v ) t x d : f l o a t i n g ( 0 v ) s t a n d b y e n = h [ 2 ] o r l / h [ 1 ] r e g u l a t o r o n n r e s = h l i n t r a n s m i t t e r o n l i n t e r m i n a t i o n 3 0 k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - r x d : = d a t a o u t p u t t x d : = d a t a i n p u t r e g u l a t o r o n ; v c c r a m p u p v c c c r o s s r e s e t t h r e s h o l d - > s t a r t t r e s l i n t r a n s m i t t e r o f f l i n t e r m i n a t i o n 3 0 k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - a f t e r p o w e r o n : r x d : h i g h t x d : h i g h a f t e r w a k e u p : r x d : l o w t x d : w a k e s o u r c e o u t p u t t > t s b y ( 3 5 0 m s ) & v c c > v r e s i n i t s t a r t v a u x ; r e g u l a t o r o f f e n d o f i n i t i a l i z a t i o n l o c a l w a k e - u p o r r e m o t e w a k e - u p o r v c c < v r e s v c c < v r e s [ 2 ] o n l y a f t e r w a k e - u p f r o m s l e e p m o d e w i t h e n = l / h
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 22 3901080050 jun 2016 011 4.1. modes overview table 7 : mlx80050/30 operation modes mode vcc txd rxd lin remarks standby 3.3v/5v high high recessive entered after power on or wake up normal 3.3v/5v inp ut for transmit data stream output for lin data stream follows txd [1] silent 3.3v/5v high high recessive high = 3.3v/5v sleep 0 floating floating recessive remote wake up to enter standby mode, en = h to go to no r- mal mode [1] normal mode will be entered form standby mode by a low - > high transition on pin en and from sleep mode by en = h after startup of the regulator. when recessive level (high) on pin txd is present the transmit path will be enabled table 8 : mlx80051/31 operatio n modes mode vcc txd rxd lin inh watchdog remarks standby 3.3v/5v high/ active low [1] high/ active low [2] recessive on on entered after power on or wake up normal 3.3v/5v input for transmit data stream output for lin data stream follows txd on on [3 ] [4] [5] silent 3.3v/5v high high recessive off off sleep 0 floating floating recessive off off local or remote wake up to enter standby mode, en = h to go to normal mode [1] indicates the wake up flag in case of local wake up [2] after power on rxd is going high via pull - up to vcc. if any wake up(local or remote) occurs it will be indicated by active low [3] active low interrupt at pin rxd will be removed when entering normal mode [4] wake up source flag at pin txd will be removed when entering normal mode [5] normal m ode will be entered from standby mode by a low - > high transition on pin en and from sleep mode by en = h after startup of the regulator. when recessive level (high) on pin txd is present the transmit path will be enabled
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 23 3901080050 jun 2016 011 4.2. initialisation and standby mode w hen the battery supply voltage vs exceeds the specified threshold v suvr_off , the mlx8003x/5x automatically enters the standby mode. following internal procedure is running: first: ? start of internal supply vaux and por of vaux ? start of internal rc oscillat or second and parallel after por: ? start of voltage regulator the output voltage v cc ramps up to nominal value. the pin rxd is floating and the integrated slave pull up resistor with decoupling diode pulls the pin lin. the transmitter as well as the receiv er is disabled. if there occurs no mode change to normal mode via an en low to high transition within the time stated (typically 350ms), the ic enters the most power saving sleep mode. furthermore the standby mode will be entered after a valid local or re mote wake up event, when the mlx8003x/5x is in sleep or silent mode. the entering of the standby mode after wake up will be indicated by an active low in terrupt on pin rxd. 4.3. normal mode this mode is the base mode. the bus transceiver is able to send with a max baud rate of 20kbit/s. the whole mlx8003x/5x is active. the incoming bus traffic is detected by the receiver and transferred via the rxd ou t- put pin to the microcontroller. exit the normal mode with one of the following conditions: 1. high - to - low edge on en pin with txd = h - > switch to silent mode 2. high - to - low edge on en pin with txd = l - > switch to sleep mode 3. undervoltage monitor on vcc detects a low voltage reset condition (vcc < v res ) - > switch back to stand - by mode. low slew mode the first rising e dge on en after power - on defines the slew rate of the device. with txd = high at this point works the mlx8003x/5x with normal slew rate (default state). txd = low activates the low slew mode, as long as vs > v suvr_off . in this mode the slew rate is switch ed from the normal value of typ. 1.6v/s to a low value of typ. 0.8v/s. this mode is optimized to send with a maximum baud rate of 10.4kbit/s (acc. to sae j2602). because of this reduction of the slew rate the eme behaviour is improved especially in the f requency range of 100 khz to 10mhz.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 24 3901080050 jun 2016 011 4.4. silent mode the silent mode is a special mode for application with active sleep mode on lin, but the connected mcu still needs to be supplied with vcc. with a falling edge on en input in combination with txd=high swit ches the mlx800 3x/5x from normal mode to the silent mode with reduced internal current consumption. in silent mode the voltage regulator is on with a 2% tolerance. the transmitter is disabled and the pin rxd is disco n- nected from the receive path and is flo ating. the slave termination resistor (lin pull up resistor with decoupling diode between pins lin and vs) is disconnected; only a weak cur r e nt source is applied to the lin bus. value is typical - 75ua, limits - 20 - 100ua. exit the silent mode with one of th e following conditions: 1. low - to - high edge on the en pin - > switch back to normal mode 2. remote wake up (all versions) or local wake up request (mlx80031/51 only) - > switch to standby mode 3. undervoltage monitor on vcc detects a low voltage reset condition (vcc < v res ) - > switch back to stand - by mode. figure 6 : lin wake - up from silent mode t i m i n g _ s i l e n t _ m o d e . v s d t w u _ r e m o t e v c c e n t p d _ s i l n o r m a l m o d e s i l e n t m o d e t x d r x d t r a n s m i t t e r o n t r a n s m i t t e r o n n o r m a l m o d e s t a n d b y m o d e l i n l o w n r e s w a t c h d o g o f f w a t c h d o g o n w a t c h d o g * s t a r t w a t c h d o g l e a d t i m e t r a n s m i t t e r o f f * o n l y f o r m l x 8 0 0 3 1 / 5 1 r e g u l a t o r o n
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 25 3901080050 jun 2016 011 figure 7 local wake - up from silent mode via wake 4.5. sleep mode the most power saving mode of the mlx800 3x/5x is the sleep mode. the mlx800 3x/5x offe rs two procedures to enter the sleep mode: ? the mode is selected from normal mode with a falling edge on en in combination with txd = l. ? if the mlx800 3x/5x is in standby mode after power - on or wake - up, a sleep counter is started and switches the transceive r into sleep mode after the specified time (typ. 350ms) even when the microcontroller of the ecu will not confirm the normal operation by setting the en pin to logic high. this new feature allows faulty blocked lin nodes to reach always the most power savi ng mode. being in sleep mode the voltage regulator switched off in order to minimize the current consumption of the complete lin node. the transmitter is disabled and the pin rxd is disconnected from the receive path and is low (follows vcc). the slave ter mination resistor (lin pull up resistor with decoupling diode between pins lin and vs) is disconnected, only a weak current source is applied to the lin bus (see chapter 8 fail - safe features) v c c e n t p d _ s i l t i m i n g _ s l e e p _ m o d e _ l o c w u . v s d n o r m a l m o d e s i l e n t m o d e t x d r x d t r a n s m i t t e r o n t r a n s m i t t e r o f f t r a n s m i t t e r o n n o r m a l m o d e s t a n d b y m o d e l i n t w u _ w a k e w a k e * l o w n r e s w a t c h d o g o f f w a t c h d o g o n w a t c h d o g * s t a r t w a t c h d o g l e a d t i m e * o n l y f o r m l x 8 0 0 3 1 / 5 1 l o w * u n d e r v o l t a g e d e t e c t i o n a c t i v e r e g u l a t o r o n
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 26 3901080050 jun 2016 011 exit the sleep mode with the follow ing condition: 1. remote (all versions) or local wake up request (mlx80031/51 only) - > switch to standby mode 2. en = l/h - > switch to standby mode figure 8 : remote wake - up from sleep mode
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 27 3901080050 jun 2016 011 figure 9 : local wake - up from sleep mode 4.6. init - state this is an intermediate state, which will pass through aft er switch on of vs or after undervoltage detection vs with vs < v suvr_on . the internal supply voltage vaux ramp up and the initial readout procedure of zenerzap storage are started. at the end of this phase the vcc voltage definition and the definition of mlx8003x5x version is established. this init - state changes to standby mode with the start of vcc regulator. v c c e n t p d _ s l e e p t i m i n g _ s l e e p _ m o d e _ l o c w u . v s d n o r m a l m o d e s l e e p m o d e t x d r x d t r a n s m i t t e r o n t r a n s m i t t e r o f f t r a n s m i t t e r o n n o r m a l m o d e s t a n d b y m o d e l i n t w u _ w a k e w a k e * l o w f l o a t i n g n r e s w a t c h d o g o f f w a t c h d o g o n w a t c h d o g * s t a r t w a t c h d o g l e a d t i m e r e s e t t i m e * o n l y f o r m l x 8 0 0 3 1 / 5 1 l o w *
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 28 3901080050 jun 2016 011 5. wake up procedures the mlx80030/50 versions offer only remote wake - up: after a falling edge on the lin bus followed by a dominant voltage level for longer than the specified value (t wu_remote ) and a rising edge on pin lin will cause a remote wake up. the device switches to standby mode and the wake - up r e- quest is indicated by an active low on pin rxd. the mlx80031/51 versions offer three wake - up proc edures: ? in applications with continuously powered ecu a wake up via mode transition to normal mode is possible (see chapter 4.3 normal mode). ? remote wake - up via lin bus traffic after a falling edge on the lin bu s followed by a dominant voltage level for longer than the specified value(t wu_remote ) and a rising edge on pin lin will cause a remote wake up. ? local wake - up via a falling edge on pin wake a falling edge on the pin wake and a dominant voltage level for lo nger than the specified time (t wu_wake ) will cause a local wake - up. the current for an external switch has to be provided by an external pull up resistor r wk . for a reverse current limitation in case of a closed external switch and a negative ground shift or an ecu loss of ground a protection resistor r wk_prot between pin wake and the switch is recommended. ? local wake - up via a rising edge on pin kl15 a positive edge on the pin kl15 followed by a high voltage level for a time period t wu_kl15 > 250 s results in a local wake - up request. the mlx80031/51 switches to the standby mode. the long debouncing time on kl15 suppresses unintentional transients. a high level on kl15 has no influence of switching between modes with en input. before a new lo cal wake - up request via kl15 can be started, kl15 have to be switche d to low level for a time > 250 s. 5.1. wake up source recognition in mlx80031/51 the device can distinguish between a local wake - up event (pin wake or pin kl15) and a remote wake - up event. t he wake - up source flag is set after a local wake - up event and is indicated by an active low on pin txd. the wake - up flag can be read if an external pull up resistor towards the microcontroller supply voltage has been added and the mlx80031/51 is still in s tandby mode: ? low level indicates a local wake - up event ? high level indicates a remote wake up event the wake - up request is indicated by an active low on pin rxd and can be used for an interrupt. when the microcontroller confirms a normal mode operation by setting the pin en to high, both the wake - up request on pin rxd as well as the wake - up source flag on pin txd are reset immediately.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 29 3901080050 jun 2016 011 6. functionality 6.1. reset behaviour of mlx8003x/5x the mlx8003x/5x contains a reset unit which controls the initialization and generation of the reset signal. the nres pin flags the reset state of the mlx8003x/5x. the por timer will be started if v s is switched on and v cc > v res threshold. after the time t res the nres output is switched from low to high. the reset unit combin es a vcc low voltage detection unit with fixed reset timer. this output is switched from low to high if v s is switched on and after the time t res is v cc > v res . a drop of the v cc voltage will be detected by the low voltage reset unit which generates a rese t signal. the mlx8003x/5x will be reinitialized if the v cc voltage rises above the low voltage limit. if the voltage v cc drops below v res then the nres output is switched from high to low after the time t rr . this filters short breaks of the v cc voltage an d avoids uncontrolled reset generation. figure 10 : vcc reset behavi or the mlx80031/51 version combines the reset behaviour described above with a window - watchdog unit. the nres pin outputs the reset state as well as the watchdog condition. the por timer will be started if v sup is switched on and v cc > por threshold. afte r the time t res the reset output is switched from low to high. the watchdog is disabled during this por procedure. after the por delay , the nres output is switched from low to high and the watchdog starts. in normal mode the nres pin flags the status of th e window watchdog. 6.2. thermal shutdown if the junction temperature t j is higher than t jshd , the mlx8003x/5x switche s from any mode into standby m ode. du r- ing tsd all functions are switched - off . the transceiver is completely disabled; no wake - up functionality is available. if t j falls below the thermal recovery temperature t jrec , mlx8003x/5x resumes operation starting from standby mode . if en=h at recovery, chip switches to normal after vcc>vres and tres. sby - timeout timer is disabled during tsd. v s v c c t r e s v r e s n r e s t r r t r e s t r e s t r e s t < t r r t < t r r t > t j t < t j r e s e t _ t i m i n g _ 8 0 0 3 x 5 x . v s d p o w e r - o n t h e r m a l s h u t d o w n v s u p s p i k e u n t e r s p a n n u n g a n v s u p v c c s p i k e v c c o v e r l o a d v s u p _ u v r
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 30 3901080050 jun 2016 011 6.3. vs under vol tage reset the under voltage detection unit prevents an undefined behaviour of the mlx8003x/5x under low voltage condition (vs < v suvr_on ). if vs drops below v suvr_on , the under voltage detection becomes active and the ic will be switched from every state to init - state followed by standby mode with the same behaviour like after vs power - on. with the following increas e of vs above v suvr_off the mlx8003x5x remains in standby mode and the voltage regulator starts with the in i- tialization sequence (vcc availabl e) . if en=h at power - up, the chip switches to normal after vcc>vres and tres. remark: in case vs drops below 5v but still remains above v suvr_on , vcc follows vs. vcc is switched off during vs u n- dervoltage reset. 6.4. lin - transceiver the mlx8003x/5x has an in tegrated bi - directional bus interface device for data transfer between lin bus and the lin protocol controller. the transceiver consists of a driver with slew rate control, wave shaping and current limitation and a receiver with high voltage comparator fol lowed by a debouncing unit. transmit mode during transmission the data at the pin txd will be transferred to the lin driver to generate a bus signal. to minimize the electromagnetic emission of the bus line, the lin driver has an integrated slew rate contr ol and wave shaping unit. transmitting will be interrupted in the following cases: - sleep mode - silent mode - thermal shutdown active - power on reset the recessive lin bus level is generated from the integrated 30k pull up resistor in serial with an active diod e this diode prevents the reverse current of v lin during differential voltage between vs and lin (v lin >v s ). no additional termination resistor is necessary to use the mlx8003x/5x in lin slave nodes. if this ics are used for lin master nodes it is necessary that the lin pin is terminated via an external 1k ? resistor in series with a diode to vbat. receive mode the data signals from the lin pin will be transferred continuously to the pin rxd. short spikes on the bus signal are su p- pressed by the implemented de bouncing circuit. slew modes and data rates the mlx8003x/5x consists a constant slew rate transceiver which means that the bus driver works with a mode d e- pended slew rate. in normal mode the slew rate is typical 1.6 v/s (max. baud rate 20kbit/s) and in lo w slew mode typ i- cal 0.8 v/s. the lower slew rate in low slew mode associated with a baud rate of 10.4kbit/s improves the eme beha v- iour. the lin transceiver of mlx8003x/5x is compatible to the physical layer specification according to lin 2.x specification for data rates up to 20kbit/s and the sae specification j2602 for data rates up to 10.4kbit/s. the constant slew rate principle is very robust against voltage drops and can operate with rc - oscillator systems with a clock tolerance up to 2% between 2 no des. low slew mode in this mode the slew rate is switched from the normal value of typical 1.6v/s to a low value of typical 0.8v/s. this mode is optimized to send with a maximum baud rate of 10.4kbit/s (acc. to sae j2602). because of this reduction of th e slew rate the eme behaviour is improved especially in the frequency range of 100 khz to 10mhz.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 31 3901080050 jun 2016 011 6.5. voltage regulator the mlx8003x/5x has an integrated low drop linear regulator with a p - channel - mosfet as driving transistor. this reg u- lator outputs a voltage o f 3.3v / 5v 2% and a current of ? 70ma within an input voltage range of 6v v sup 18v . the current limitation unit limits the output current for short circuits or overload to 130ma respectively drop - down of the v cc voltage.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 32 3901080050 jun 2016 011 7. window - watchdog (only mlx80031/ 51 ) the integrated window watchdog unit observes the correct function of the connected microcontroller. the required timing can be programmed with an external resistor connected to the pin rb wd . this resistor defines together with an internal capacit or the watchdog oscillator frequency . the watchdog is re - triggered by the microcontroller via the nwdi input. the watchdog status is represented by the nres pin. negative edges on nwdi reset the watchdog timer. if no pulse is received at nwdi , the mlx80051/31 ge nerates low pulses on the nres output with a pulse width of t wdres and a period of t wdper . 7.1. mlx80031/51 watchdog behaviour after power - on and elapsed reset time t res , the window watchdog starts operation with a rising edge on pin nres. this start is indepe nde nt from standby or normal mode. figure 11 : mlx80031/51 watchdog beh avior in case of leaving silent or sleep mode via remote wake - up (lin) or local wake - up (wake or kl15) , the window watc h- dog starts immediately after entering standby mode. after t res the window watchdog unit starts with the lead time state. in this state the watchdog clock period s (1/f wdosc ) are counted 7895 (=n lead ) times . a falling edge on nwdi pin within this lead time stops the lead counter and activates the close d window state with ncw=1053. thereafter follows the open window state with count er start v alue of now=1105. in case the lead counter elapses , the watchdog enters the reset state and starts the reset timer with time tres. close window state and open window state are the normal states of the window watchdog. at each of these states runs a counter with the watchdog clock signal. the cwt counter runs always to the end. the watchdog does not trigger when the nwdi trigger signal arrives within the o pen w indow state . a nwdi trigger pulse outside the o pen w indow state generates a reset condition and th e nres output switches to low for the time t wdres (see figure 12 ). v s , v c c v r e s n r e s t r r t r e s i n i t _ m l x 8 0 0 3 1 5 1 - a l l . v s d t w r e s t o w s n w d i s t a r t - u p p o r d e l a y w a t c h d o g s e q u e n c e p o w e r - o f f t o w w a t c h d o g l e a d w i n d o w t c w
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 33 3901080050 jun 2016 011 figure 12 : watchdog timing 7.2. all watchdog start - up scenarios 7.2.1. after power - on and initialization watchdog start s after vcc ramp up and elapsed time of reset timer (typ. 4ms) with lead time state . mlx80031/51 is in standby or normal mode . 7.2.2. w ake up indicated transition to standby mode from sleep or silent mode watchdog start s immediately with activati on of standby mode (sby_mode = 1). waking up from sleep mode the vcc regulator ramps up and the reset timer starts. the reset timer has in this case no influence on the watchdog start. 7.2.3. u ndervoltage reset on vcc on normal mode or silent mode mlx80031/51 goes to standby mode. running watchdog process is stopped and cleared. with active undervoltage reset the signal the output pin nres goes to low. l eaving undervoltage reset start s the reset timer (4ms) and there after start s a new watchdog cycle . 7.2.4. en indicated transition from silent mode to normal mode mode control changes from silent mode to normal mode. watchdog starts immediately with activation of normal mode in closed window state. n w d i n r e s w a t c h d o g _ t i m i n g . v s d t c w n w d i = h i g h o r l o w t c w t o w t c w t o w t c w t o w t o w t w d r e s t w d t c w t o w t w d r e s t c w t o w t c w t c w 3 c o r r e c t w a t c h d o g s e r v i c e s 2 t w d > t c w + t o w a t n w d i = h i g h o r l o w t w d < t c w
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 34 3901080050 jun 2016 011 7.3. calculation of watchdog period the rc - oscillator of mlx80031/51 which generates the responsible timing of the watchdog has a tolerance of 15%. this has the consequence that also the watchdog windo w times t cw and t ow variants with this tolerance. figure 13 : watchdog open a nd close window tolerances the ideal watchdog period can be calculated with: the average value t wd of the real usable watchdog trigger time under consideration of the oscillator tolerance is: [eq1] the allow ed tolerance ? t wd is: [eq2] with the definition of t cw = ncw * (1 tol) * t wdosc and t ow = now * (1 tol) * t wdosc from [eq1] t wd can be calculated with : [eq3] and with [eq2]: [eq4] th e variation t wd will be normalized to the mean value t wd and both counter values set in a relationship of a=now/ncw, then follows for the relative deviation: [eq5] the watchdog trigger time as well as the tolerance depends only on the oscillator frequency respectively the period t wdosc , if there are fixed values for both counters (ncw and now) and oscillator tolerance. implemented in mlx80031/51 is a precision rc oscillator with a tolerance of tol = ? 15%. combined with the relation of counter values a=1.04 reached them a tolerance of trigger time of ? 20%. ow cw t t ? ? ? 2 1 t wd_id 2 ) t t (t t max min min cw ow cw wd ? ? ? 2 ) t t (t t max min min d cw ow cw w ? ? ? ? 2 1 ncw 2 ( t t dosc tol)) ( now w wd ? ? ? ? ? 2 2 1 ( t t dosc d ncw) tol tol) ( now w w ? ? ? ? ? ? ? ) 1 ( 2 2 ) 1 ( t dtol tol a tol tol a w ? ? ? ? ? ? ? ? t c w t w d t c w m i n t c w m a x ( t c w + t o w ) m i n ( t c w + t o w ) m a x t c w + t o w t c w o w 0 - t w d + t w d
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 35 3901080050 jun 2016 011 table 9 : parameters of window watchdog symbol parameter value tol tolerance wd oscillator ? 15% ncw close window counter 1053 now open window counter 1105 t wdtol tolerance wd - trigger time ? 20% with the predefined counter values (ncw and now) and the oscillator tolerance tol are the trigger time of watchdog and them tolerance only be calculated by the selection of oscillator frequency, or their period t wdosc . fort the used precision rc - oscillator the oscillator period is show n as a linear function of the external resistor rb wd . [eq6] the trigger period can be calculated with the help of eq3 together with table 9 C parameter of w indow watchdog [eq7] or convert to rb wd : [eq8] s ome samples of different rd wd v alues and the corresponding watchdog times: table 10 : window watchdog timing selection rb wd [k ? ] t wdosc [ ? s] lead time t lead [ms] close window t cw [ms] open window t ow [ms] trigger period t wd [ms] 20 8.09 63.9 8.52 8.94 25.48 30 11.58 91.4 12.19 12.79 35.42 51 18.90 149.2 19.90 20.88 56.31 75 27.26 215.2 28.71 30.12 80.19 100 35.98 284.0 37 .88 39.75 10 5.06 120 42.95 339.1 45.23 47.46 12 4.95 150 53.41 421.6 56.24 59.01 15 4.80 short or open circuit on rb wd the mlx80031/51 can detect a short circuit against gnd on the rb wd pin or an open rb wd pin. if on pin a resistor rb wd <330 ? or rb wd >1 0m ?? detected, then the mlx80031/51 checks during the initialization phase a fail - safe state. the watchdog oscillator will be set in a fail - safe mode with an oscillator period of about 50 ? s . rbwd values between 150k ? and 10m ? are not allowed. 117 . 1 ] [ 3486 . 0 s] [ t dosc ? ? ? ? k rb wd w ? 58462 . 5 ] [ 99477 . 0 s] [ t d ? ? ? ? k rb m wd w 61398 . 5 ] [ 00526 . 1 ] [ ? ? ? ? ms twd k rb wd
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 36 3901080050 jun 2016 011 8. fail - safe fea tures loss of battery if the ecu is disconnected from the battery, the lin bus pin is in high impedance state. there is no impact to the bus traffic and to the ecu itself. reverse current is limited to < 20a loss of ground in case of an interrupted ecu gr ound connection there is no influence to the bus line. the current from the ecu to the lin bus is limited by the weak pull up resist or of the pin lin . t he slave termination resistor is disconnected in order to fulfil the sae j2602 requirements for the loss of ground current (<100a @12v). short circuit to battery the transmitter output current is limited to the specified value in case of short circuit to battery in order to prevent high current densities and thermal hot spots in the lin driver. short circui t to ground if the lin bus wiring is shorted to negative shifted ground levels, there is no current flow from the ecu ground to the bus and no distortion of the bus traffic occurs. if the controller detects a short circuit of the lin bus to ground the tran sceiver can be set into sleep mode. additionally the internal slave termination resistor is switched off and only a weak pull up termination is applied to the lin bus (typ. 50a ). if the failure disappears, the bus level will become recessive again and wil l wake up the system even if no local wake up occurs or is possible. thermal overload all mlx8003x/5x versions are protected against thermal overloads. if the chip temperature exceeds the specified value, the transmitter is disabled until thermal recovery and the following recessive to dominant transition on pin txd. the receiver is still working while thermal shutdown. undervoltage lock out if the battery supply voltage is missing or decrease s below the specified value (vs_uv), the transmitter is disabled to prevent undefined bus traffic. while in sleep mode, the mlx8003x/5x enters the s tandby m ode if vs drops below the internal power on reset threshold. open circuit protection ? the pin txd provides a pull up resistor to vcc . the transmitter can not be enab led. ? the pin en provides a pull down resistor to prevent undefined normal mode transitions. ? the pin nwdi provides a pull up resistor to vcc . the window watchdog generates nres pulse . ? the pin mode provides a pull down resistor to gnd . no influence on window watchdog . ? if the battery supply voltage is disconnected, the pin rxd is floating . ? the pin wake provides a weak pull up current towards supply voltage vs to prevent local wake - up requests . ? the pin kl15 provides a weak pull down current towards gnd to prevent local wake - up requests . short circuit rxd, nres against gnd or vcc both outputs are short circuit proof to vcc and ground. rbwd short circuit against gnd or open the watchdog oscillator runs with an internal controlled frequency and guarant ees a reset.
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 37 3901080050 jun 2016 011 9. application hints 9.1. safe operating area the linear regulator of the mlx8003 x /5 x operates with input voltages up to 27 v and can output a current of 70 ma. the maximum power dissipation limits the maximum output current at high input voltages and high ambient temper a- tures. the output current of 70 ma at an ambient temperature of t a = 125c is only possible with small voltage diffe r- ences between v s and v cc . figure 14 : sa f e operating area for mlx80030/50 in soic - 8 for vsu p up to 18v 0 10 20 30 40 50 60 70 80 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ivcc [ma] vsup [v] safe operating area mlx80030 t a = +125 o c max. supply mlx80050 t a = +105 o c maximum current mlx80050 t a = +125 o c mlx80030 t a = +105 o c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 38 3901080050 jun 2016 011 figure 15 : sa f e operating area for mlx80031/51 in qfn20 for vsup up to 18v 9.2. application circuitry figure 16 : application circuit with mlx80050 or mlx80030 ( slave node) 0 10 20 30 40 50 60 70 80 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ivcc [ma] vsup [v] safe operating area mlx80031 t a = +125 o c max. supply voltage mlx80051 t a = +105 o c maximum current mlx80051 t a = +125 o c mlx80031 t a = +105 o c 2 2 0 p 2 . 2 u . . 1 0 0 u + 5 v / 3 . 3 v 2 . 2 u m c u v b a t m l x 8 0 0 5 0 / 3 0 v s e n g n d v c c t x d n r e s b u s r x d l i n 1 0 0 n 1 0 0 n 1 0 k 1 0 0 n
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 39 3901080050 jun 2016 011 figure 17 : application circuit with mlx80031 or mlx80051 (slave node) to minimize the influe nce of emi on the bus line an 22 0pf capacitor should be connected directly to the lin pin (see figure 17 ). this emi - filter as sure s that the rf injection into the ic from the lin bus line has no e ffect or will be limited. it is also possible to use lc - or rc - filter s . the dimension s of c - l or r - l depend on the corner frequency, the maximum lin bus capacitance (10nf) and the compliance with the dc - and ac lin bus parameters. 10. esd and emc 10.1. recommendations for actuator products in order to minimize emc influences, the pcb has to be designed according to emc guidel ines. actuators products are esd sensitive devices and have to be handled according to the rules in iec61340 - 5 - 2. actuators products will apply the requirements in the application according to the specification, to iso7637 - 2, - 3 and iso16750 - 2. prototype samples of actuators products will be evaluated according aec - q100 - 002. the result will be published after qualification. after esd stress single parameters may be shifted out of their limit, but ic function will still be correctly. e n w a k e l i n g n d r x d t x d v s v c c n w d i n r e s r b w d g n d 2 0 1 1 9 1 8 1 7 1 6 2 3 4 5 6 7 8 9 1 0 1 5 1 4 1 3 1 2 1 1 m l x 8 0 0 3 1 / 5 1 q f n 5 m m x 5 m m 0 . 6 5 m m p i t c h 2 0 l e a d 2 2 0 p 1 0 0 n 2 . 2 u . . 1 0 0 u l i n - b u s c i n 2 . 2 u 1 0 0 n c l 1 0 k 1 0 k 3 3 k 6 0 k v d d u c r e s e t r x d t x d w d t r i g e n m o d e 1 0 k d e b u g i n h 4 7 k k l 1 5 i g n i t i o n v b a t r t g 1 0 0 n 2 . 2 u
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 40 3901080050 jun 2016 011 10.1.1. automotive qualifica tion test pulses that means that automotive test pulses are applied to the module in the application environment and not to the single ic. therefore attention must be taken, that only protected pins (protection by means of the ic itself or by means of ext ernal components) are wired to a module connector. in the recommended application diagrams, the reverse polarity diode together with the capacitors on supply pins, the protection resistors in several lines and the load dump protected ic itself will protect the module against the below listed automotive test pulses. the exact value of the capacitors for the application has to be figured out during design - in of the product according to the automotive requirements. for the lin pin the specification lin physi cal layer spec 2.1 (nov. 24, 2006) is valid. supply pin vs is protected via the reverse polarity diode and the supply capacitors. no damage will occur for defined test pulses. a deviation of characteristics is allowed during pulse 1 and 2; but the module will recover to the normal function after the pulse without any additional action. during test pulse 3a, 3b, 5 the module will work within chara c- te r istic limits. 10.1.2. test pulses on supply lines table 11 : test pulses supply line param eter symbol min max dim coupling test condition, functional status transient test pulses in accordance to iso7637 - 2 (supply lines) & , vs=13.5v, ta=(23 ?? 5)c ? ? & (document: hardware requirements for lin, can and flexray interfaces in automotive applicat ions ; audi, bmw, daimler, porsche, vw; 2009 - 12 - 02) test pulse #1 vpulse1 - 100 v direct 5000 pulses, functional state c test pulse #2a vpulse2a 75 v direct 5000 pulses, functional state a test pulse #3a vpulse3a - 150 v direct 1h,functional state a t est pulse #3b vpulse3b 100 v direct 1h,functional state a load dump test pulse in accordance to iso16750 - 2 (supply lines), vs=13.0v, ta=(23 ?? 5)c ? test pulse #5b vpulse5b 65 (+13v (vs)) 87 (+13v (vs)) v direct 1 pulse clamped to 27v (+13v (vs)), (32v (+13v (vs))for applications for north america), functional state c
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 41 3901080050 jun 2016 011 10.1.3. test pulses on pin lin table 12 : test pulses l in parameter symbol min max dim coupling test condition, functional status transient test pulses in accordance to iso7637 - 3, vs=13.5v, ta=(23 ? ? 5)c ? & (document: hardware requirements for lin, can and flexray interfaces in automotive applications ; audi , bmw, daimler, porsche, vw; 2009 - 12 - 02) test pulse dcc slow C vpulse_ slow+ - 100 v direct capacitive coupled: 1nf 1000 pulses, functional state d test pulse dcc slow + vpulse_ slow - 75 v direct capacitive coupled: 1nf 1000 pulses, functional state d test pulse dcc fast a vpulse_ fast_a - 150 v direct capacitive coupled: 1nf 10 min, functional state d test pulse dcc fast b vpulse_ fast_b 100 v direct capacitive coupled: 1nf 10 min, functional state d 10.1.4. test pulses on signal lines table 13 : test pulses signal lines parameter symbol min max dim coupling test condition, functional status transient test pulses in accordance to iso7637 - 3 (signal lines). vs=13.5v, ta=(23 ?? 5)c test pulse dcc slow C vpulse_ slow+ - 30 - 8 v direct capacitive coupled: 100nf 1000 pulses, functional state c test pulse dcc slow + vpulse_ slow - +8 +30 v direct capacitive coupled: 100nf 1000 pulses, functional state a test pulse dcc fast a vpulse_ fast_a - 60 - 10 v direct capacitive coup led: 100pf 10 min, functional state a test pulse dcc fast b vpulse_ fast_b 10 40 v direct capacitive coupled: 100pf 10 min, functional state a
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 42 3901080050 jun 2016 011 description of functional state a: all functions of the device are performed as designed during and af ter the disturbance occurs. b: all functions of the device are performed as designed during the disturbance occurs. one or more functions can violate the specified tolerances. all functions return automatically within their normal limits after the di s- turb ances is removed.. c: a function of a device does not perform as designed during the disturbance occurs but returns automatically to the normal operation after the disturbances is removed. d: a function of a device does not perform as designed during the d isturbance occurs and does not return aut o- matically to the normal operation after the disturbances is removed. the device needs to be reset by a simple operation/action to return to the specified limits/function. e: one or more functions of a device do not perform as designed during and after the disturbance occurs and does not return automatically to the normal operation after the disturbances is removed. after a reset of the device, it does not return to the specified limits/function. the device needs to be repaired or replaced. 10.1.5. emv test pulse definition table 14 : test pulses shapes iso7637 - 2 test pulse 1 ri = 10 ohm test pulse 2a ri = 2 ohm test pulse 3a ri = 50 ohm test pulse 3b ri = 50 ohm test pulse 5a (load dump) ri = 0.5ohm (clamped to 45v during test) a 200 ms < 100 s 2 ms 0.5...5s vpulse1 12 v 0 v t v 10% 90% 1 s t 0 v v 12v 90% 10% vpulse2 200 ms 1 s 50 s 0.5...5s 100 s 10 ms 90 ms v 100 ns 5 ns vpulse3a 10% 90% t 0 v 12v vpulse3a v 0 v 100 s 10 ms 90 ms vpulse3b 10% 90% 100 ns 5 ns 12v t vpulse3b 90% 10% pulse 5 pulse 5 at device 40v td = 40...400ms tr = 0.1...10ms 12v v t vpulse5
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 43 3901080050 jun 2016 011 table 15 : test pulses shapes iso7637 - 3 emv test pulse shapes (iso7637 - 3 (non - supply lines)) test pulse dcc slow - ri = 2 ohm test pulse dcc slow + ri = 2 ohm t est pulse fast a, dcc ri = 50 ohm test pulse fast b, dcc ri = 50 ohm 10.2. typical application circuitry in order to minimize emc influences, the external application circuitry shall be designed as followed: v s v s c o n n e c t o r + c 1 1 ) c 2 2 ) c 3 2 ) a c t u a t o r s p r o d u c t l i n g n d l i n c 4 1 ) c 6 1 ) c 5 2 ) g n d d 1 2 ) r 1 2 ) d 2 1 ) c 7 1 ) r 2 2 ) s i g n a l - l i n e s i g n a l - l i n e d 3 1 ) 2 ) m a n d a t o r y i m p l e m e n t e d 1 ) o p t i o n a l i m p l e m e n t e d
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 44 3901080050 jun 2016 011 10.2.1. e xternal circuitry on supply lines in order to minimize emc influences, the external application circuitry shall be designed as followed: name mounting min recommended max dim comment c1 recommended - 100 - nf ceramic smd: 10%, 0805, 50v; close to the connector d1 mandatory i nverse - polarity protection d i ode c2 mandatory 1 22 100 f tantal smd: 10%, 7343, 35v c3 mandatory - 100 - nf ceramic smd: 10%, 0805, 50v; close to the pin 10.2.2. external circuitry on lin lines in order to minimize emc influences, the external application circuitry shall be designed as followed: name mounting min recommended max dim comment d2 no - pesd1lin - esd protection diode: sod323 close to the connector; optional part c4 no - - - pf ceramic smd: 10%, 0805, 50v; c slave c d2 +c 4 +c 5 +c 6 +c ic c slave 250pf; optional p art r1 mandatory - 0 - serial resistor: 0805; or optional ferrite c5 mandatory - 220 - pf ceramic smd: 10%, 0805, 50v; c slave c d2 +c 4 +c 5 +c 6 +c ic c slave 250pf c6 no - - - pf ceramic smd: 10%, 0805, 50v; c slave c d2 +c 4 +c 5 +c 6 +c ic c slave 250pf; optional part 10.2.3. external circuitry on signal lines in order to minimize emc influences, the external application circuitry shall be designed as followed: name mounting min recommended max dim comment c7 no 0.1 1 100 nf ceramic smd: 10%, 0805, 50v; optional part r2 mandatory 0 560 1000 serial resistor: 0805; or optional ferrite d3 no - pesd1lin - esd protection diode: sod323 close to the connector; optional part
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 45 3901080050 jun 2016 011 11. mechanical specification 11.1. soic8 package figure 18 : soic8 drawing ta ble 16 : soic8 dimensions small outline integrated circiut (soic), so ic 8, 150 mil a1 b c d e e h h l a ? zd a2 all dimension in mm, coplanarity < 0.1 mm min max 0.10 0.25 0.36 0.46 0.19 0.25 4.80 4.98 3.81 3.99 1.27 5.80 6.2 0 0.25 0.50 0.41 1.27 1.52 1.72 0 8 0.53 1.37 1.57
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 46 3901080050 jun 2016 011 11.2. qfn20 5x5 package figure 19 : qfn2 0 drawing table 17 : qfn2 0 package dimensions symbol a a1 a3 b d d2 e e2 e k l n [3 ] nd [4] ne [4] [1] [2] min max 0.80 0 0.20 0. 25 5.00 3.00 5.00 3. 00 0. 6 5 0.20 0.4 5 2 0 5 5 1.00 0.05 0.3 5 3.2 5 3. 2 5 0.65 [1] dimensions and tolerances conform to asme y14.5m - 1994 [2] all dimensions are in millimeters. all angels are in deg rees [3] n is the total number of terminals [ 4 ] nd and ne refer to the number of terminals on each d and e side respectively d e k n 1 2 e 2 l d 2 a a 1 b e a 3 b o t t o m e x p o s e d p a d
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 47 3901080050 jun 2016 011 12. revision history version changes remark date 001 first release 1 st release april 2012 002 ? for tsd added: "if en=h at recove ry, chip switches to normal after vcc>vres and tres" and "sby - timeout timer is disabled du r- ing tsd" ? for tsd removed explicit values and kept parameter name only. ? for vs_uvr added: "if en=h at power - up, chip switches to normal after vcc>vres and tres" ? chang ed state diagram: sleep mode can be left with en = h (was a l - h transition in a version of the device), refers to errata 80050aa - 07. june 2012 003 ? esd robustness level adapted to conformance test report ? static characteristics adapted to cpk - values ? block diagram updated ? corrected short description of product dec 2012 004 ? removed 06.05, 09.05, 13.05 ? changed 05.02 to 200mv (5v) and 100mv (3.3v) ? changed 06.03 and 13.03 to 700mv ? changed 09.03 to 600mv ? added mode pin to parameter list ? changed 15.05 to ll = 2. 7v and ul to 3.3v ? changed 14.01 to 0.6v at 2ma ? changed 08.03 to ll = 30 ? changed 02.00 to ll = 400 and ul to 1500 ? changed tjshd to 155/170/190c ? changed 12.04 and 12.05 ul to 20ua ? changed 03.05 to relevance c (only for characterization) ? added 17.06 watch dog safety oscillator ? changed 3.01 for 80030/31 to ul = 3.201 and ul = 3.399 mar 2013 005 ? corrected value e of qfn package data to 0.65 apr 2013 006 ? changed 15.01 ? changed 1.03 ll to 40mv ? changed 3.09 ll to - 135ma and ul to - 75ma ? changed esd capabil ity of lin pin to +/ - 6kv july 2013 007 ? changed operating voltage to max. 27v ? changed table 2, nominal operating voltage, max to 27v ? update 3.09: split temperature ranges ? changed 12.03 to min: - 400a ? changed 12.06 to min: - 10a, max: 50a ? changed 6.04 to typ: 125 k ? , max: 250 k ? ? changed 12.01 to 80a feb 2014 008 ? added condition for thermal resistance ? updated chapter 4.1, tables 7 and 8 for txd and rxd values d e- april 2014
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 48 3901080050 jun 2016 011 pending on the mode and en = h transition from sleep mode to normal mode ? changed operating vo ltage to 27v max in application hints 9.1 ? re - phrased information to emc compliance in 9.2.2 ? lin: changed parameter 12.10 and added parameter 12.12 to lin spec 2.x and compatible to sae j2602, split parameter 12.07 into dominant and recessive 0 09 ? updated product codes to wettable flanks nov 2014 010 ? silent mode for silicon version b not supported ? silicon version c added, support of silent mode feb 2015 011 ? silicon version b removed ? changed 1.01, 1.02 vs under voltage reset ? changed 2.01 sup ply current sleep mode ? changed 2.02 supply current silent mode ? addition of 18.11 wake up time vs. en ? update state diagram (fig 5) ? update of paragraph e sd and emc jun 2016
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 49 3901080050 jun 2016 011 13. standard information regarding manufacturability of melexis products with differe nt soldering processes our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: reflow soldering smds ( s urface m ount d evices) ? ipc/jedec j - std - 020 moistur e/reflow sensitivity classification for nonhermetic solid state surface mount devices (classification reflow profiles according to table 5 - 2) ? eia/jedec jesd22 - a113 preconditioning of nonhermetic surface mount devices prior to reliability testing (reflow p rofiles according to table 2) wave soldering smds ( s urface m ount d evices) and thds ( t hrough h ole d evices) ? en60749 - 20 resistance of plastic - encapsulated smds to combined effect of moisture and soldering heat ? eia/jedec jesd22 - b106 and en60749 - 15 resist ance to soldering temperature for through - hole mounted devices iron soldering thds ( t hrough h ole d evices) ? en60749 - 15 resistance to soldering temperature for through - hole mounted devices solderability smds ( s urface m ount d evices) and thds ( t hrough h o le d evices) ? eia/jedec jesd22 - b102 and en60749 - 21 solderability for all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, te m- perature gradient, temperature profile etc) additional classification and qua lification tests have to be agreed upon with melexis. the application of wave soldering for smds is allowed only after consulting melexis regarding assurance of adhesive strength between device and board. melexis recommends reviewing on our web site th e general guidelines soldering recommendation ( http://www.melexis.com/quality_soldering.aspx ) as well as trim&form recommendations (http://www.melexis.com/assets/trim - and - form - recommendations - 5565.aspx). melexis is contributing to global environmental conservation by promoting lead free solutions. fo r more information on qualifications of rohs compliant products (rohs = european directive on the restriction of the use of certain ha z- ardous substances) please visit the quality page on our website: http: //www.melexis.com/quality.aspx
mlx80050/51/30/31 lin system basis ics datasheet mlx80050/51/30/31 C datasheet page 50 3901080050 jun 2016 011 14. disclaimer devices sold by melexis are covered by the warranty and patent indemnification provisions appearing in its term of sale. melexis makes no warranty, express, statutory, implied, or by description regarding the inf ormation set forth herein or regarding the freedom of the described devices from patent infringement. melexis reserves the right to change specifications and prices at any time and without notice. therefore, prior to designing this pro d- uct into a system, i t is necessary to check with melexis for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life - support or life - sustaining equipment are specifically not recommended without additional processing by melexis for each application. the information furnished by melexis is believed to be correct and accurate. however, melexis sh all not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no o b- ligation or liability to recipient or any third party shall arise or flow out of melexis rendering of technical or other services. ? 2015 melexis nv. all rights reserved. for the latest version of this document, go to our website at www.melexis.com or for additional information contact melexis direct: europe, africa, asia: america: phone: +32 1367 0495 phone: +1 248 306 5400 e - mail: sales_europe@melexis.com e - mail: sales_usa@melexis.com iso/ts 16949 and iso14001 certified

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