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| mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 1 datas heet mlx91206 rev 043 april 2016 features and benefits ? tria x is ? t echnology ? very high sensitivity due to integrated magnetic c oncentrator (imc - hall ? ) ? programmable high speed current sensor ic ? wideband: dc to 9 0 khz ? short response time ? programmable linear transfer characteristic ? selectable ? analog ratiometric output ? pwm output with 12 bit resolution ? thermometer output ? 1 7 bit id number ? soic8 package rohs compliant ? lead free component, suitable for lead free soldering profile 260c (target), msl3 application examples ? dc/ac (inverter) converter ? dc/dc switched mode power supply ? battery management ? smart fuse (o ver - current detection ) ? bldc motor (phase current) ? ac/dc converters ordering information product code temperature code package code ordering option code packing form code sensitivity range (typ.) mlx91206 l ( - 40c to 150c) dc (soic) cal - 001 tu (tube) / re (reel) 460 - 700mv/mt (580mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cal - 00 2 300 - 470mv/mt (380mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cal - 003 200 - 310mv/mt (250mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 001 210 - 330mv/mt (270mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 002 130 - 220mv/mt (170mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 003 80 - 140mv/mt (110mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 004 60 - 110mv/mt (77.5mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 021 (1) 210 - 330mv/mt (270mv/mt) mlx91206 l ( - 40c to 150c) dc (soic) cah - 104 (2 ) 0.5 - 5%dc/mt (1) the mlx91206 sensor is in disabled ratiometry mode by default for this version (2) the mlx91206 sensor is in pwm mode by default for this version ordering example: mlx91206ldc - cal - 001 - re 1 functional diagram figure 1 : block diagram h a l l b i a s i n t e g r a t i n g p 2 p d i d o l p f s & h 4 - p h a s e s w i t c h b o x f s = 1 m h z o u t p u t b u f f e r o s c i l l a t o r 1 m h z c l o c k g e n e r a t o r g = 1 5 2 3 9 g = 4 f s = 1 m h z i n p u t d a t a r a t e f i = 2 5 0 k h z o r 2 5 k h z i n t e r m e d i a t e d a t a r a t e g = 0 . 4 1 v o l t a g e r e g u l a t o r & r e v . p o l . p r o t e c t i o n f o = 2 5 0 k h z o r 2 5 k h z o u t p u t d a t a r a t e d i g i t a l + e e p r o m 1 0 b i t s f g [ 9 : 0 ] f i l t c o d e [ 1 : 0 ] 2 b i t s f i n e g a i n b a n d w i d t h r g [ 2 : 0 ] 3 b i t s r o u g h g a i n v o q a d j u s t c l a m p i n g 6 b i t s 3 . 3 v c o r e 5 v r a t i o m e t r i c o u t p u t t h e r m o m e t e r t c 1 s t [ 6 : 0 ] t c 2 n d _ c o l d [ 4 : 0 ] x a [ 1 1 : 0 ] d a c a d c p w m l o g i c h a l l s e n s o r s s e l e c t i o n d i g i t a l r a t i o m e t r y m u s t 0 m u s t 1 t e s t o u t o u t v d d t e m p o u t v s s v d i g 3 . 3 v a n a 3 . 3 v d i g t c 2 n d _ h o t [ 4 : 0 ] s e n s i t i v i t y t r i m m i n g o f f s e t c o m p e n s a t i o n o f f s e t d r i f t _ h o t [ 5 : 0 ] o f f s e t d r i f t _ c o l d [ 5 : 0 ] p l a t e p o l p o l a r i t y s e l e c t i o n 1 2 b i t s c l a m p l o w [ 2 : 0 ] c l a m p h i g h [ 2 : 0 ]
mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 2 datas heet mlx91206 rev 043 april 2016 2 general descript ion the mlx91206 is a monolithic sensor ic featuring the tria ? is ? hall technology. conventional planar hall technology is only sensitive to the flux density applied orthogonally to the ic surface. the imc - hall ? current sensor is sensitive to the flux density applied parallel to the ic surface. this is obtained through an integrated magneto - concentrator (imc - hall ? ) which is deposited on the cmos die (as an additional back - end step). the imc - hall ? current sensor is automo tive qualified. the product is a single chip hall sensor which provides an output signal which is proportional to the flux density applied horizontally and is therefore suitable for current measuremen t . it is ideally used as an open loop current sensor fo r pcb mounting. (see figure 2) . it features small size application design and a simple construction for various current ranges. the transfer characteristic of the mlx91206 is programmable (offset, gain, clamping levels, diagnostic functions). the outp ut is selectable between a nalog and pwm. the linear analog output is used for application where a very fast response ( <10 ? sec ) is required, whereas the pwm output is used for application where low speed but high output signal robustness is required. figure 2 : typical application of ml x91206 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 3 datas heet mlx91206 rev 043 april 2016 table of contents 1 functional diagram ................................ ................................ ................................ ................................ ................................ ................ 1 2 general description ................................ ................................ ................................ ................................ ................................ ............... 2 3 glossa ry of terms ................................ ................................ ................................ ................................ ................................ ................. 4 4 absolute maximum ratings ................................ ................................ ................................ ................................ ................................ ... 4 5 pin definitions and descriptions ................................ ................................ ................................ ................................ ............................ 4 6 general electrical specifications ................................ ................................ ................................ ................................ ............................ 5 7 magnetic specification ................................ ................................ ................................ ................................ ................................ ........... 6 7.1 25 mt version (marking xxh) ................................ ................................ ................................ ................................ .......................... 6 7.2 10 mt version (marking xxl) ................................ ................................ ................................ ................................ ......................... 6 8 analog output specification ................................ ................................ ................................ ................................ ................................ .... 7 8.1 timing specification ................................ ................................ ................................ ................................ ................................ ........ 7 8.2 accuracy specification ................................ ................................ ................................ ................................ ................................ .... 7 8.3 remarks to the achievable accuracy ................................ ................................ ................................ ................................ .............. 7 9 pwm output specification ................................ ................................ ................................ ................................ ................................ ...... 8 9.1 timing specification for the pwm output ................................ ................................ ................................ ................................ ......... 8 9.2 magnetic specification for the pwm output ................................ ................................ ................................ ................................ ..... 9 9.3 accuracy specification transfer characteristic pwm ................................ ................................ ................................ ........................ 9 10 thermometer output specification ................................ ................................ ................................ ................................ ........................ 9 11 programmable items ................................ ................................ ................................ ................................ ................................ .......... 10 11.1 paramet er table ................................ ................................ ................................ ................................ ................................ .......... 10 11.2 output mode configuration (dspmode, outmode) ................................ ................................ ................................ ................ 11 11.3 output impedance mode (diaginfault) ................................ ................................ ................................ ................................ .. 11 11.4 reference edge (refedge) C only in pwm mode ................................ ................................ ................................ .................... 11 11.5 pwm/switch mode (switch) ................................ ................................ ................................ ................................ ..................... 11 11.6 platepol (platepol) ................................ ................................ ................................ ................................ ................................ . 12 11.7 sensitivity programming (roughgain, finegain) ................................ ................................ ................................ .................. 12 11.8 offset / output quiescent voltage programming (xa, ya) ................................ ................................ ................................ ............ 13 11.9 clamping level programming (cla mplow, clamphigh) ................................ ................................ ................................ ........ 13 11.10 bandwidth and filter programming (filtcode) ................................ ................................ ................................ ........................ 14 11.11 power limitation / pwm rise and fall time (outslope) ................................ ................................ ................................ ............ 15 11.12 pwm mode duty cycle definition (dcdef) ................................ ................................ ................................ ............................... 16 11.13 output ratiometry (ratiodis) ................................ ................................ ................................ ................................ .................. 16 11.14 sensitivity and temperature drift programming (tc1st, tc2nd_cold, tc2nd_hot) ................................ ........................... 16 11.15 offset temperature drift programming (offdrift_cold, offdrift_hot) ................................ ................................ .......... 16 11.16 product identification (mlxid, cstid) ................................ ................................ ................................ ................................ ...... 17 12 application information ................................ ................................ ................................ ................................ ................................ ....... 18 12.1 low current measurement up to 2 a ................................ ................................ ................................ ................................ ......... 18 12.2 medium current up to 30 a ................................ ................................ ................................ ................................ ....................... 18 12.3 high current measurement up to 600 a ................................ ................................ ................................ ................................ .... 18 13 recommended application diagrams ................................ ................................ ................................ ................................ ................ 19 13.1 resistor and capacitor values ................................ ................................ ................................ ................................ ..................... 19 13.2 fast analog application, pull - down resistor for diagnostic low ................................ ................................ ................................ ..... 19 13.3 fast analog application, pull - up resistor for diagnostic high ................................ ................................ ................................ ........ 20 13.4 robust pwm appl ication, (pull - up load only) ................................ ................................ ................................ .............................. 20 14 standard information regarding manufacturability of melexis products with different soldering processes ................................ .......... 21 15 esd precautions ................................ ................................ ................................ ................................ ................................ ............... 21 16 package information ................................ ................................ ................................ ................................ ................................ .......... 22 16.1 soic8 package dimensions ................................ ................................ ................................ ................................ ....................... 22 16.2 soic8 pinout and marking ................................ ................................ ................................ ................................ ......................... 22 16.3 soic8 hall plate position ................................ ................................ ................................ ................................ ............................ 23 16.4 imc position and sensors active measurement direction ................................ ................................ ................................ ............ 23 17 related documents and tools ................................ ................................ ................................ ................................ ............................. 24 17.1 related documents ................................ ................................ ................................ ................................ ................................ .... 24 17.2 related software ................................ ................................ ................................ ................................ ................................ ........ 24 17.3 related hardware ................................ ................................ ................................ ................................ ................................ ....... 24 18 disclaimer ................................ ................................ ................................ ................................ ................................ .......................... 25 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 4 datas heet mlx91206 rev 043 april 2016 3 glossary of terms tesla units for the magnetic flux density , 1 mt = 10 gauss tc temperature coefficient in ppm/deg c nc not connected pwm pulse wi d th modulation %dc duty cycle of the output signal i.e. t on /(t on + t off ) adc analog to digital converter dac digital to analog converter lsb least significant bit msb most significant bit dnl differential non linearity inl integral non linearity imc integrated magneto concentrator (imc ? ) pt c programming through connector 4 absolute maximum r atings parameter symbol value units positive supply voltage (overvoltage) vdd + 20 v reverse supply voltage protection - 10 v positive output voltage + 10 + 14 (200 s max, t a = + 25 c) v output current iout 300 ma reverse output voltage - 0.3 v reverse output current - 50 ma operating ambient temperature range t a - 40 to +1 50 c storage temperature range t s - 55 to + 1 65 c magnetic flux density 0.2 t table 1 : absolute maximum ratings exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute maximum rated conditions for extended periods may affect device reliability. 5 p in d efinitions and d escriptions pin name type function 1 vdd supply supply voltage 2 vss ground supply voltage 3 vdig supply digital supply voltage, 3.3 v, internal regulated 4 must1 digital test and factory calibration 5 out / pwm analog/digital current sensor output 6 test out digital test and factory calibration 7 must 0 digital test and factory calibration 8 tempout analog temperature sensor output table 2 : pin definition and description i t is recommen ded to connect the unused pins to the ground (see section 1 6 ) for optimal emc results. mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 5 datas heet mlx91206 rev 043 april 2016 6 general electrical specifications operating parameters : t a = - 40 to 125 deg c, vdd = 4.5 v to 5. 5 v , iout = - 2 ma to +2 ma, recommended application diagram in section 16, unless otherwise specified . all mentioned component values can have a 20% tolerance parameter symbol test conditions min typ max units nominal supply voltage vdd 4.5 5 5.5 v supply current idd w/o output load & t a = - 40 to 150 o c - roughgain 3 - roughgain > 3 7 9 10 12 ma ma output current iout - 2 2 ma output resistance vout = 50% vdd, r l = 5k 1 5 ? output capacitive load c load analog mode 5 10 50 nf pwm mode 0 10 50 nf output short circuit current i short output shorted to vdd - permanent not destroyed output shorted to vss - permanent not destroyed leakage current i leak high impedance mode (2) 5 ua output voltage swing (linear range) v out_pd pull down 10 k? 5 95 %vdd v out_pu pull up 10 k? 5 95 %vdd high - impedance mode levels (2) v out_ hiz_pu pull - up r l 30 k? 97 %vdd v out_ hiz_pd pull - down r l 30 k? 3 %vdd brokenvss output levels (2) out with pull - down r l 1 0 k ? (3 ) 3 %vdd out with pull - up r l 30 k? (3 ) 97 %vdd brokenvdd output levels (2) out with pull - down r l 30 k? (3 ) 3 %vdd out with pull - up r l 30 k? (3 ) 97 %vdd under - voltage detection (2) ( 4 ) v dd_uvd detected voltage (l ow to h igh ) 3.15 3.3 3.45 v v dd_uvh hysteresis 0.25 0.3 0.4 v over - voltage detection mode 1 (2) ( 4 ) v dd_ovd 1 detected voltage (l ow to h igh ) 7. 8 9.5 v v dd_ovh 1 hysteresis 0. 8 1.6 v over - voltage detection mode 2 (2) ( 4 ) v dd_ovd 2 detected voltage (l ow to h igh ) 6. 7 7. 6 v v dd_ovh 2 hysteresis 0.05 0. 5 v clamped output level clamp_lo trimming range 5 (1) 10 %vdd clamp_hi trimming range 90 95 (1) %vdd table 3 : general electrical parameter (1) factory programmed clamping level (2) refer to chapter self - diagnostic , table 21 . (3) valid for tempout with pull - up (min. 30k ? ) , pull - down (min. 30k ? ) or not connected (4) according to the figure below figure detected voltage and hysteresis definitions vout detected voltage vdd hysteresis mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 6 datas heet mlx91206 rev 043 april 2016 7 magnetic specification 7.1 25 mt version (marking xxh) operating parameters t a = - 40 to 125 deg c, vdd = 4.5 v to 5.5 v , unless otherwise specified . parameter symbol test conditions min typ max units nominal field range bnom - 20 +20 mt operational field range (1) bop - 25 +25 mt linearity error nl nominal field range (25 c ) - 0.5 +0.5 %fs operational field range (25 c ) - 0.75 +0.75 %fs hysteresis, remanent field br b = bop - 25 +25 ut programmable sensitivity (2) s b = bop , analog mode 80 330 mv/mt sensitivity programming resolution sres b = bop 0.1 % table 4 : magnetic specification 25mt version (high - field version) (1) above 25 mt, the imc starts saturating yielding to an increase of the linearity erro r. (2) the specified programmab le sensitivity range is covered by 5 different versions (option codes) option code (25mt) programmed sensitivity sensitivity range cah - 001 270mv/mt 210 - 330mv/mt cah - 002 170mv/mt 130 - 220mv/mt cah - 003 110mv/mt 80 - 140mv/mt cah - 004 77.5 mv/mt 60 - 11 0mv/mt cah - 021 270mv/mt 210 - 330mv/ mt 7.2 10 mt version (marking xxl) operating parameters t a = - 40 to 125 deg c, vdd = 4.5 v t o 5.5 v (unless otherwise specified) parameter symbol test conditions min typ max units nominal f ield r ange bnom - 7.5 +7.5 mt operational field r ange ( 3 ) bop - 10 +10 mt (2) linearity e rror nl nominal field range (25 c ) - 0.5 +0.5 %fs operational field range (25 c ) - 0.75 +0.75 %fs hysteresis, remanent f ield br b = bop - 10 + 1 0 ut programmable sensitivity (4 ) s b = bop , analog mode 200 700 mv/mt sensitivity programming resolution sres b = bop 0.1 % table 5 : magnetic specification 10mt version (low - field version) (3) above 10 mt, the imc starts saturating yielding to an increase of the linearity error. (4) the specified programmable sensitivity range is covered by 3 different versions (optio n codes) option code (10mt) programmed sensitivity sensitivity range cal - 001 580mv/mt 460 - 700mv/mt cal - 002 380mv/mt 300 - 470mv/mt c al - 003 250mv/mt 200 - 310mv/mt mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 7 datas heet mlx91206 rev 043 april 2016 8 a nalog output specification 8.1 timing specification operating parameters t a = - 40 to 125 deg c, vdd = 4.5 v to 5.5 v (unless otherwise specified) parameter symbol test conditions min typ max units step response time tresp voq 2 v bw = 100 khz C no filter 8 10 s bandwidth bw full range 50 7 0 90 khz power on d elay t pod vout =100% of fs (bw = 100 hz) (bw = 1000 hz) (bw = 10 khz) (bw = 100 khz C no filter) 100 10 5 5 m s ms ms ms ratiometry cut - off frequency fratio 250 hz table 6 : timing specification high speed analog output 8.2 accuracy specification operating parameters t a = - 40 to 125 deg c, vdd = 4.5 v to 5.5 v (unless otherwise specified) parameter symbol test conditions min typ max units thermal offset drift thermal offset drift (1) t voq t voq - 0.4 - 20 +0.4 20 %vdd mv thermal sensitivity drift tc - 1.5 +1.5 % s rms output noise n rms s = 6 %vdd/mt (= 300 mv/mt @ vdd=5v) 0.1 %vdd voq ratiometry vo q voq = 50%vdd vdd = 10%vdd 9.8 10.2 % voq drift C supply related (1) vo q voq = 50%vdd (vdd nominal = 5v) vdd = 10%vdd - 5 5 mv sensitivity ratiometry s vdd = 10%vdd b = bop 9.8 10.2 % clamped output accuracy clamp_lo clamp_hi trimming range: 5 - 10%vdd trimming range: 90 - 95%vdd - 1 1 %vdd table 7 : accuracy specific parameter analog output (1) applies to cah - 021 version 8.3 remarks to the achievable accuracy the a chievable t arget a ccuracy is dependent on u ser s end - of - line calibration. the resolution for the offset and offset drift calibration is better than 0.1%vdd. trimming capability is h igher than the measurement accuracy. end - user calibration can increase the accura c y of the syst em. mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 8 datas heet mlx91206 rev 043 april 2016 9 pwm output specification 9.1 timing specification for the pwm output operating parameters t a = - 40 to 125 deg c, vdd = 4.5 v to 5.5 v (unless otherwise specified) parameter symbol test conditions min typ max units main oscillator frequency f osc tolerance ? 10% 900 1024 1100 khz pwm output frequency f pwm 110 125 140 hz tick time (resolution in time domain) t tick 1 s pwm output resolution r(pwm) 1 2 bit, theoretical jitter free 0. 0 25 % dc pwm jitter (1 sigma) j (pwm) filtcode = 5 (70 hz digital lowpass filter) 0.0 1 % dc (1 sigma) output rise time (10% - 90%) t riseod push - pull mode r l = 4.7 k ? to 5 v , c l = 10 nf outslope = 0 1 1 s outslope = 1 7 s outslope = 2 4 s outslope = 3 2.5 s output fall time (90% - 10%) t fallod push - pull or open - drain mode r l = 4.7 k ? to 5 v , c l = 10 nf outslope = 0 14 s outslope = 1 8 s outslope = 2 4.5 s outslope = 3 2.5 s clamped output level clamp_lo programmable 1 10 % dc clamp_hi programmable 90 9 9 % dc power - on delay t pod 11 ms table 8 : timing specification for the pwm output mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 9 datas heet mlx91206 rev 043 april 2016 9.2 magnetic specification for the pwm output operating parameters t a = - 40 to 125degc, vdd = 4.5 v to 5.5 v , unless otherwise specified . parameter symbol test conditions min typ max units nominal field range bnom - 20 +20 mt operational field range (1) bop - 25 +25 mt linearity error nl nominal field range (25 c ) - 0.5 +0.5 %fs operational field range (25 c ) - 0.75 +0.75 %fs hysteresis, remanent field br b = bop - 25 +25 ut programmable sensitivity s b = bop 0.5 5 %dc/mt sensitivity programming resolution sres b = bop 0.1 % table 9: magnetic specification 25mt version (high - field version) (1) above 25 mt, the imc starts saturating yielding to an increase of the linearity error. 9.3 accuracy specification transfer characteristic pwm operating parameters t a = - 40 to 125 deg c, vdd = 5.0 v (unless otherw ise specified) , s = 4%dc/mt parameter symbol test conditions min typ max units thermal offset drift t voq - 0.4 +0.4 %dc thermal sensitivity drift tc - 150 +150 ppm/ c table 10 : accuracy specific parameter pwm output 10 thermometer o utput specification the thermometer output voltage is in the range from 3 67 mv to 2930m v for temperatures ranging from - 40 to 1 5 0 degc . the accuracy is better than 5degc . the pin shall be able to sustain a low impedance connection to maximum 14v. th is output is not ratiometric . parameter symbol test conditions min typ max units o ffset t 35 output voltage with t = 35deg c 3 - bit adjustment 1. 3 8 v slope t slope 13. 5 mv /deg c accuracy t acc - 5 5 degc load capacitor c loadtherm external through bonding wire 1 50 nf output current i outtherm - 0.1 +0.1 ma table 11 : thermometer output specification mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 10 datas heet mlx91206 rev 043 april 2016 11 programmable i tems 11.1 p arameter tab le customers can re - program the parameters described in the table below by using the melexis ptc - 04 hardware and the product specific functions (psf) libraries provided by melexis. we recommend using the latest version of the psf and the latest version of the firmware with a communication speed of 10kbps (limited by a maximum output capac itor of 50nf). software and firm ware are available on the softdist platform (see contact details on page 2 5 to request an account). parameter bits factory setting comment dspmode 1 0 selection analog or pwm output outmode 1 1 capacitive load selection in analog mode n/a push pull or open drain output drive in pwm mode diaginfault 1 0 output impedance setting refedge 1 0 not used in analog mode diagnostic level & reference edge switch 1 n/a not used in analog mode 0 pwm or switch output selection platepol (1) 1 0 change of sensitivity sign roughgain 3 trimmed rough gain preamplifier finegain 10 trimmed fine gain from 0.4 to 1.0 in analog mode 13 trimmed fine gain from - 3.999 to +3.999 in pwm mode xa 12 trimmed offset compensation voq in analog mode 14 trimmed digital offset in pwm mode ya 9 n/a not used in analog mode 32 rough offset compensation in pwm mode clamplow 3 trimmed clamping low level in analog mode n/a not used in pwm mode clamphigh 3 trimmed clamping high level in analog mode 2 clamping high and low level for pwm output filtcode 3 0 analog filter in analog mode 4 2 digital filter in pwm mode outslope 2 3 power limitation of the output driver on high frequencies in analog mode output slope control for pwm mode dcdef 1 0 not used in analog mode 1 pwm duty cycle definition ratiodis (1) 1 0 /1 (2) enable/disable ratiometry between output signal and supply n/a not used in pwm mode tc1st 7 trimmed sensitivity temperature drift correction first order tc2nd_cold 5 trimmed sensitivity temperature drift correction second order for cold temperatures tc2nd_hot 5 trimmed sensitivity temperature drift correction second order for hot temperatures offdrift_cold 6 trimmed offset temperature drift correction for cold temperatures offdrift_hot 6 trimmed offset temperature drift correction for hot temperatures mlxid 48 programmed mlx id cstid 17 n/a customer id table 9 2 : customer programmable items (1) : changing these parameters has an impact on temperature calibration. (2) : d efault value is 1 only for cah - 021 version . mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 11 datas heet mlx91206 rev 043 april 2016 11.2 output mode configuration (dspmode, outmode) dspmode activate s the pwm or the analog mode for the output signal. outmode configures the output driver. dspmode outmode output driver 0 0 fast analog mode, c l = 1nf..10nf (1) (2)(3) 0 1 normal analog mode, c l = 5nf..50nf (1) (2)(4) 1 0 pwm mode C open drain 1 1 pwm mode C push pull table 13 : output configuration (1) see section 16, c l = c 4 . (2) factory setting: dspmode = 0, outmode = 1. (3) for applications directly integrated on a pcb, smaller capacitors are allowed at the output pins. (4) for a standalone application where a cabl e is connected at the output of the sensor. 11.3 output impedance mode (diaginfault) diaginfault sets the output impedance mode . diaginfault output impedance 0 low impedance mode (normal mode) 1 high impedance mode (diagnostic level ) 11.4 r eference edge (refedge) C only in pwm mode refedge defines the diagnostic level and sets the reference edge. refedge reference edge (pwm) 0 falling edge 1 rising edge 11.5 pwm/switch mode (switch) in pwm mode , the output can be configured to switch mode . switch operating mode 0 disable switch mode 1 enable switch mode mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 12 datas heet mlx91206 rev 043 april 2016 11.6 platepol (platepol) the polarity of the h all plate versus the output signal is programmable by the platepol parameter. platepol polarity 0 positive 1 negative please note that the factory ca libration is done with platepol=0 . m elexis cannot guarantee the magnetic specification s if this parameter is changed during customer calibration. 11.7 sensitivity programming (roughgain, finegain) the sensitivity is programmable with 3 bits for roughgain an d 10 bits for finegain in analog output application from 6 0 to 3 3 0 v/t (91206 - high - field version ) and from 2 00 to 7 00 v/t (low - field version) . the finegain resolution depends on the programmed roughgain setting. it typically ranges from 0.25v/t (roughgain =7 ) up to 0.01v/t (roughgain=0) . d ifferent option co des correspond to different sensitivity ranges : ordering option code imc version typical sensitivity minimum sensitivity maximum sensitivity cal - 001 low field 580 mv/mt 460 mv/mt 700 mv/mt cal - 002 380 mv/mt 300 mv/mt 470 mv/mt cal - 003 250 mv/mt 200 mv/mt 310 mv/mt cah - 001 high field 270 mv/mt 210 mv/mt 330 mv/mt cah - 002 170 mv/mt 130 mv/mt 220 mv/mt cah - 003 110 mv/mt 80 mv/mt 140 mv/mt cah - 004 77.5 mv/mt 60 mv/mt 110 mv/mt cah - 021 270mv/ mt 210 mv/mt 330mv/mt cah - 104 3 %dc/mt 0.5 %dc/mt 5 %dc/mt in order to have a safety margin regarding mechanical tolerances melexis recommend s designing the application in such a way that the typical sensitivity can be used with. i f the target sensitivity of the module is out of the defined range (see table above) , the hardware and software tools provided by melexis will not be able to properly calibrate the sensor. d ifferent option codes correspond to different electric gains: rderi ordering option code imc version typical rough gain electrical gain typical voq drift [mv] typical noise [mv rms] cal - 001 low field 7 240 18 5 cal - 002 6 155 14 3.5 cal - 003 5 100 9 2.5 cah - 001 high field 7 240 18 5 cah - 021 7 240 18 5 cah - 002 6 155 14 3.5 cah - 003 5 100 9 2.5 since n oise and offset drift of the sensor are proportional to the electric gain of the sensor , melexis recommend s using the version with the smallest gain to optimize the performances . note: power consumption is 2ma less if roughgain 3 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 13 datas heet mlx91206 rev 043 april 2016 11.8 offset / o utput quiescent voltage programming ( xa , ya ) xa in analog mode ? 12 - bit register ? offset compensation before gain ? @ 0 gauss w/o offset & @vdd=5v ? vout = 6.25 * (voq code) / 409 6 (clipping can occur!) ? programming resolution:1.5mv per lsb over the full output range. this corresponds to a calibration resolution of 0.03%vdd in pwm mode ? 14 - bit register C digital offset voq ? offset compensation before gain ya not used in analog mode in pwm mode ? 9 - bit register ? rough offset compensation (after gain) 11.9 clamping l evel programming (clamplow, clamphigh) the clamping levels limit the maximum output levels. clamplow is not used in pwm application. the clamping levels are ratiometric (if ratiodis = 0) clamp low minimal output [%vdd] 0 4. 8 1 5. 7 2 6. 6 3 7. 5 4 8. 4 5 9.3 6 10.2 7 11.2 table 14 : clamping low level table analog (typical values) mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 14 datas heet mlx91206 rev 043 april 2016 clamp high maximal output [%vdd] 0 90.6 1 91 .4 2 9 2.4 3 9 3.3 4 9 4.3 5 9 5.2 6 9 6.1 7 9 7 table 15 : clamp ing high level analog mode (typical values) . the clamping functionality can be disabled by programming clamplow=clamphigh=7 clamp high minimal output [%dc] maximal output [%dc] 0 1 99 1 4 96 2 5 95 3 6 94 4 7 93 5 8 92 6 9 91 7 10 90 table 16 : clamp ing low and high duty - cycle in pwm mode. the clamping functionality can be disabled by programming clamplow=clamphigh=7. the clamping levels calibrated during final test are: - 6%vdd (+/ - 0.5%vdd) for clamping low - 94%vdd (+/ - 0.5%vdd) for clamping high 11.10 bandwidth and filter programming (filtcode) filtcode allows adjusting t he internal bandwidth of the sensor in order to optimize for speed or resolution. filtcode typical bandwidth [khz] 0 90 (1 ) 1 9 2 40 3 2 4 9 5 0. 9 6 4 7 0. 2 table 17 : filtcode settings analog mode (1) factory settings: filtcode = 0. mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 15 datas heet mlx91206 rev 043 april 2016 filtcode cut - off frequency [hz] attenuation [db] tau [ms] 2 557 - 8.0 0.29 3 279 - 11.2 0.57 4 139 - 14.4 1.14 5 70 - 18.1 2.29 6 35 - 22.4 4.57 7 17 - 27.1 9.14 8 9 - 32.3 18.29 9 4 - 38.1 36.57 table 18 : filtcode settings pwm mode note: - in analog mode values above 7 are not used - in pwm mode values below 2 and above 9 are not used 11.11 power limitation / pwm rise and fall time (outslope) outslope, in the analog mode case, defines the power limit above which the output driver turns off to prevent damages to the ic. the power dissipated in the ic output driver is measured by the ic itself. the power is obtained by multiplying continuously the voltage across the c onducting mos driver by the output current i out . when the power reaches the power limit, the output driver is switched off and on such that, on average, the measured power is maintained equal to the power limit. the power limitation is disabled when outslo pe=3. value power limitation [mw] 0 50 1 100 2 200 3 disabled (1) table 19 : output power limitation in analog mode (1) factory settings: outslope = 3. outslope, in the pwm mode case, defines the rise and fall times of the pwm transients. value typical rise time typical fall time current limitation [ma] 0 11 14 5 1 7 8.5 7 2 4 4.5 13 3 2.5 2.5 22 table 20 : pwm rise and fall time , cout = 10nf, rpullup = 4.7kohms mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 16 datas heet mlx91206 rev 043 april 2016 11.12 pwm mode duty cycle definition (dcdef) the pwm duty cycle definition is as f o llow s . dcdef pwm duty cycle definition 0 tlow / (tlow + thigh) 1 thigh / (tlow + thigh) table 21 : pwm duty cycle definition 11.13 output ratiometry (ratiodis) in case of analog mode (dspmode=0) ratiodis allows enabling and disabling the ratiometry of the output in reference to the supply voltage by setting respectively 0 and 1 in the eeprom. ratiodis ratiometry 0 enabled 1 disabled please note that the factory ca libration is done with ratiodis =0 excepted for the cah - 021 version where ratiodis=1 . m elexis cannot guarantee the magnetic specification s if this parameter is changed during customer calibration. 11.14 sensitivity and temperature drift programming (tc1st, tc2nd_cold, tc2nd_hot) first order sensitivity temperature drift can be trimmed from - 2000 to 2000 ppm/degc with tc1st. the programming resolution is 40 ppm/degc. second order sensitivity temperature drift can be trimmed from - 6 to 6 ppm/ degc 2 with tc2nd. the programming r esolution is 0.4 /ppm/ degc 2 .the second order can also be seen as third order correction since cold and hot sides are independently adjusted. 11.15 offset temperature drift programming (offdrift_cold, offdrift_hot) offset temperature drift can be trimmed from - 2.25 to +2.25 mv/degc. the programming resolution is 0.075 mv/degc. this first order correction is done independently for temperatures over 25degc and below 25degc. mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 17 datas heet mlx91206 rev 043 april 2016 11.16 product identification (mlxid, cstid) mlxid a 48 - bit mlx id is used to guarantee mlx traceability (lotnumber, wafernumber, wafer position & option code) and is split up in 3x a 16 bit register (mlxid1, mlxid2 & mlxid3) the programmed option code is stored in mlxid3[2..0]: psf option code (1) mlxid3[2..0] ordering option code ( 2 ) 7 cal - 001 / cah - 001 / cah - 021 6 cal - 002 / cah - 002 5 cal - 003 / cah - 003 4 cah - 004 / cah - 104 (1) the option code mentioned in all 91206 related documentation (application notes, psf and user interface) refers to the psf option code. (2) the o rdering o ption code mentioned on the page 1 of this datasheet refers to the ordering code, which defines the chip version and the sensitivity range of the sensor cstid a 17 - bit customer id is available to create a dedicated traceability system self - diagnostic the mlx91206 provides numerous self - diagnostic features. those features increase the robustness of the ic functionality as it prevent s the ic to pro vide erroneous output signal in case of internal or external failure modes . error action effect on outputs remarks calibration data crc error (at power up and in normal working mode) fault mode high impedance mode (1) pull down resistive load => diag low pull up resistive load => diag high power on delay high impedan ce mode (1) 1 ms max in high impedance followed by settling undervoltage mode (4) ic is reset (7) high impedan ce mode (1) 300mv hysteresis overvoltage detection m ode 1 (5 ) ( threshold : min 7.9 v C max 9.5 v ) ic is switched off (internal supply) high impedan ce mode (1) idd < 1ma 500 to 1500mv hysteresis overvoltage detection mode 2 (6 ) ( threshold : min 6.8 v C max 7.5 v ) ic is reset (7) high impedance mode (1) 100mv hysteresis broken vss ic is switched off high impedan ce (2) with some restrictions on pull - up/pull - down resistors on out and tempout , see chap. 6 , table 3 broken vdd ic is switched off high impedan ce ( 3 ) with some restrictions on pull - up/pull - down resistors on out, see chap. 6 , table 3 table 22 : self diagnostic (1) refer to table 3: general electrical parameter , parameter high - i mpedance modes levels (2) refer to table 3: general electrical parameter , parameter brokenvss output level (3) refer to table 3: general electrical parameter , parameter brokenvdd output level (4) refer to table 3: general electrical parameter , parameter under - voltage detection (5) refer to table 3: general ele ctrical parameter , parameter over - voltage detection mode 1 (6) refer to table 3: general electrical parameter , parameter over - voltage detection mode 2 (7) the internal supply is regulated but the digital sequencer (hall element spinning) is stopped mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 18 datas heet mlx91206 rev 043 april 2016 12 application information 12.1 low current measurement up to 2 a low currents can be measured with the mlx9120 6 by increasing the magnetic field via a coil around the sensor. the sensitivity (output voltage vs. current in coil) of the measurement will depend on the size of coil and number of turns. additional sensitivity and increased immunity to external fields ca n be gained by adding a shield around the coil. the bobbin provides very high dielectric isolation making this a suitable solution for high voltage power supplies with relative low currents. the output should be scaled to obtain the maximum voltage for the highest current to be measured in order to obtain the best accuracy and resolution. figure 3 : low current application 12.2 medium current up to 30 a with a single conductor located on the pcb, currents in the range of up to 3 0 amps c an be measured. the sizing of the pcb trace needs to take in to account the current handling capabilit y and the total power dissipation . the pcb trace needs to be thick enough and wide enough to handle the rms current continuously. the differential output voltage for this configuration can be approximated by the following equation: vout = 35 mv/a * i for a current level of 30 a, the output will be approximately 1050 mv. figure 4 : medium current application 12.3 high current measureme nt up to 600 a another method of measuring high currents on pcbs is to use a large thick gauge copper trace capable of carrying the current on the opposite side of the pcb. the mlx9120 6 should be located near the centre of the trace, however because the trace is wide, the output is less sensitive to location on the pcb. this configuration also has less sensitivity due to the distance and width of the conductor. figure 5 : high current application mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 19 datas heet mlx91206 rev 043 april 2016 13 recommended application diagrams 13.1 resistor and capacitor values all mentioned component values can have a 20% tolerance part description value unit c1 supply capacitor, emi, esd 10 - 220 nf c2 regulator buffer capacitor, decoupling, emi, esd 10 - 220 nf c3 decoupling, emi, esd 5 - 50 nf c4 decoupling, emi, esd 5 C 50 (1) nf r1 pull up or pull down load resistor 10 - 30 k table 23 : resistor and capacitor value (1) when outmode=0, which we do not advice in application, capacitor c4 should be 1nf or less. 13.2 fast analog application, pull - down resistor for diag nostic low figure 6 : fast analog application, pull - down resistor 5 v d d v s s v d i g m u s t 1 o u t / p w m t e m p o u t m u s t 0 t e s t o u t 6 7 8 4 3 2 1 m l x 9 1 2 0 6 s u p p l y v o l t a g e t e m p e r a t u r e o u t p u t a n a l o g o u t p u t g n d c 3 c 4 c 1 c 2 m o d u l e e c u r 1 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 20 datas heet mlx91206 rev 043 april 2016 13.3 fast analog application, pull - up resistor for diag nostic high figure 7 : fast analog application, pull - up resistor 13.4 robust pwm application, ( pull - up load only) figure 8 : robust pwm application with pull - up resistor 5 v d d v s s v d i g m u s t 1 o u t / p w m t e m p o u t m u s t 0 t e s t o u t 6 7 8 4 3 2 1 m l x 9 1 2 0 6 s u p p l y v o l t a g e t e m p e r a t u r e o u t p u t a n a l o g o u t p u t g n d c 3 c 4 c 1 c 2 m o d u l e e c u r 1 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 21 datas heet mlx91206 rev 043 april 2016 14 standard information re garding manufacturability of melexis products with different soldering processe s our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: reflow soldering s mds ( s urface m ount d evices) ? ipc/jedec j - std - 020 moisture/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 profiles 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 resistance 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 sol der ability smds ( s urface m ount d evices) and thds ( t hrough h ole d evices) ? eia/jedec jesd22 - b102 and en60749 - 21 solderability for all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradie nt, temperature profile etc) additional classification and qualification 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 devi ce and board. melexis is contributing to global environmental conservation by promoting lead free solutions. for more information on qualifications of rohs compliant products (rohs = european directive on the restriction of the use of certain hazardous su bstances) please visit the quality page on our website: http://www.melexis.com/quality.aspx 15 esd precautions electronic semiconductor products are sensitive to electro static discharge (esd). always observe electro static discharge control procedures whenever handling semiconductor products. mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 22 datas heet mlx91206 rev 043 april 2016 16 package information 16.1 soic8 package dimensions figure 9 : package dimensions 16.2 soic8 pinout and marking figure 10 : pinout and marking note: the option code is not marked on the package. it can be found back in the eeprom (see chapter 11.12) and on the tape - on - reel label information. 0 . 1 9 0 . 2 5 n o t e s : a l l d i m e n s i o n s a r e i n m i l l i m e t e r s ( a n l g e s i n d e g r e e s ) . * d i m e n s i o n d o e s n o t i n c l u d e m o l d f l a s h , p r o t r u s i o n s o r g a t e b u r r s ( s h a l l n o t e x c e e d 0 . 1 5 p e r s i d e ) . * * d i m e n s i o n d o e s n o t i n c l u d e i n t e r l e a d s f l a s h o r p r o t r u s i o n ( s h a l l n o t e x c e e d 0 . 2 5 p e r s i d e ) . * * * d i m e n s i o n d o e s n o t i n c l u d e d a m b a r p r o t r u s i o n . a l l o w a b l e d a m b a r p r o t r u s i o n s h a l l b e 0 . 0 8 m m t o t a l i n e x c e s s o f t h e d i m e n s i o n a t m a x i m u m m a t e r i a l c o n d i t i o n . d a m b a r c a n n o t b e l o c a t e d o n t h e l o w e r r a d i u s o f t h e f o o t . 5 . 8 4 6 . 2 0 * * 1 . 2 7 t y p 4 . 8 0 4 . 9 8 * 1 . 5 5 1 . 7 3 0 . 1 2 7 0 . 2 5 0 1 . 4 0 1 . 5 5 0 . 3 5 0 . 4 9 * * * 3 . 8 1 3 . 9 9 * * 0 8 0 . 4 1 0 . 8 9 m a r k i n g : p a r t n u m b e r m l x 9 1 2 0 6 ( 3 d i g i t s ) 2 0 6 d i e v e r s i o n ( 2 d i g i t s ) 1 2 3 4 5 6 l o t n u m b e r ( 6 d i g i t s ) w e e k d a t e c o d e ( 2 d i g i t s ) y e a r d a t e c o d e ( 2 d i g i t s ) y y w w c a v d d m u s t 1 t e s t o u t t e m p o u t 1 v s s m u s t 0 v d i g o u t / p w m 8 4 5 2 0 6 c a l 1 2 3 4 5 6 y y w w l : l o w f i e l d ( 1 0 m t ) h : h i g h f i e l d ( 2 5 m t ) l mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 23 datas heet mlx91206 rev 043 april 2016 16.3 soic8 hall plate position figure 11 : hall plate positioning 16.4 imc position and sensors active measurement direction figure 12 : imc position and geometry low - field vers ion figure 13 : imc position and geometry high - field version 1 . 8 5 2 . 1 5 2 . 3 5 2 . 5 5 0 . 4 6 + / - 0 . 0 6 b e x t e r n b e x t e r n b e x t e r n b e x t e r n mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 24 datas heet mlx91206 rev 043 april 2016 17 related documents and tools 17.1 related documents ? user interface ui mlx91206 description ? product specific functions psf mlx91206 description ? ptc - 04 daughter board db - hall - 03 data sheet the latest version of these documents is available on the melexis softdist platform. please contact your local sales office to request an account (see contact details on page 25). ? non intrusive current sensing with mlx91206 application note ? mlx91206 for pdu solutions application note ? calibrating the mlx91206/mlx91207 application note ? shielding for triaxis current sensors application note the latest version of these documents is available on the mlx91206 page on the melexis website: http://www.melexis.com/hall - effect - sensor - ics/special - purpose - hall - ics/mlx91206 - 755.aspx 17.2 related software ? mlx91206 firmware ? mlx9 1206 product specific functions (psf) ? mlx91206 user interface ? mlx ptc - 04 product specific functions ? mlx ptc - 04 user interface the latest version of these pieces of software is available on the melexis softdist platform. please contact your local sales off ice to request an account (see contact details on page 25). 17.3 related hardware ? ptc - 04 programmer for melexis ptc devices ? ptc - 04 daughter board db - hall - 03 for mlx91206 mlx91206 imc - hall ? current sensor (triaxis ? technology) 3901091206 page 25 datas heet mlx91206 rev 043 april 2016 18 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 information 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 product into a system, it 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 shall not be liable to recipient or any third party for any damages, i ncluding 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 obligation or liability to recipient or any third party shall arise or flow out of melexis rendering of technical or other services. ? 2012 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 i so/ts 16949 and iso14001 certified |
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