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MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 1 of 33 datasheet rev. 2.0 25/jun/13 features and benefits triaxis ? hall technology on chip signal processing for robust absolute position sensing simple magnetic design programmable measurement range programmable linear transfer char acteristic (multi-points) sent output (according to sae j2716-2010) 12 bit resolution - 10 bit thermal accuracy 48 bit id number option single die ? soic-8 package rohs compliant dual die (full redundant) ? tssop-16 package rohs compliant applications absolute rotary position sensor absolute linear position sensor pedal position sensor steering wheel position sensor throttle position sensor float-level sensor ride height position sensor non-contacting potentiometer ordering information 1 part no. temperature suffix package code die revision option code packing MLX90367 e ( ? 40c to + 85c) dc [soi c-8] abs 090 re(tu) MLX90367 k ( ? 40c to + 125c) dc [soi c-8] abs 090 re(tu) MLX90367 l ( ? 40c to + 150c) dc [s oic-8] abs 090 re(tu) MLX90367 e ( ? 40c to + 85c) go [tsso p-16] abs 090 re(tu) MLX90367 k ( ? 40c to + 125c) go [t ssop-16] abs 090 re(tu) MLX90367 l ( ? 40c to + 150c) go [t ssop-16] abs 090 re(tu) legend: temperature code: e for temperature range -40c to 85c k for temperature range -40c to 125c l for temperature range -40c to 150c package code: dc for soic-8 package go for tssop-16 package (dual die ? full redundant) option code: xxx-090 ? standard packing form: re for reel tu for tube ordering example: MLX90367lgo-abs-090-re 1 see your sales representative for more details. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 2 of 33 datasheet rev. 2.0 25/jun/13 1. functional diagram figure 1 - mlx 90367 block diagram 2. description the MLX90367 is a monolithic sensor ic sensitive to the flux density applied orthogonally and parallel to the ic surface. the MLX90367 is sensitive to the three components of the flux density applied to the ic (i.e. b x , b y and b z ). this allows the MLX90367 with the correct magnetic circuit to decode the absolute position of any moving magnet (e.g. rotary position from 0 to 360 degrees or linear displacement, stroke). it enables the design of novel generation of non-contacting posi tion sensors that are frequently required for both automotive and industrial applications. MLX90367 provides sent frames encoded according the secure sensor format. the circuit delivers enhanced serial messages providing error codes, and user-defined values. v ss v dd re g m u x ? c r o m - f / w ram eep rom - a d g re v . pol . & overvolt . v z v x v y dsp v d ig out (sent) http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 3 of 33 datasheet rev. 2.0 25/jun/13 table of contents features and benefi ts ......................................................................................................... .............. 1 applications .................................................................................................................. .......................... 1 ordering information ......................................................................................................................... 1 1. functional diagram ...................................................................................................................... 2 2. description ................................................................................................................... .................... 2 3. glossary of terms ? abbreviations ? acronyms ............................................................ 5 4. pinout ........................................................................................................................ .......................... 5 5. absolute maximu m ratings ...................................................................................................... . 6 6. description ................................................................................................................... .................... 6 7. MLX90367 electrical specification ......................................................................................... 8 8. MLX90367 isolation specification ............................................................................................ 8 9. MLX90367 timing specification ................................................................................................. .. 9 9.1. t iming diagrams .............................................................................................................................. .......... 10 9.2. a pplication diagram used for rise and fall time measurement ....................................................... 11 10. MLX90367 accuracy specification ......................................................................................... 12 11. MLX90367 magnetic specification .......................................................................................... 13 12. MLX90367 cpu & memory specification ................................................................................. 13 13. MLX90367 end-user prog rammable items ........................................................................... 14 14. sent output protocol .......................................................................................................... .... 15 14.1. g enerality .............................................................................................................................. ............... 15 14.2. s ingle s ecure f ast c hannel ............................................................................................................... 15 14.2.1. frame c ontent ................................................................................................................. ..................... 15 14.2.2. diagnostic reporting thro ugh the fast channel ................................................................................. ... 15 14.2.3. pause pulse ................................................................................................................... ........................ 16 14.2.4. fast chann el crc............................................................................................................... ................. 16 14.3. s low c hannel .............................................................................................................................. .......... 16 14.3.1. enhanced seri al message ....................................................................................................... ............. 16 14.3.2. serial message sequence ....................................................................................................... .............. 17 14.3.3. serial message se quence period ................................................................................................ ........... 18 14.3.4. serial message error co de ..................................................................................................... ............. 18 14.4. s tart - up .............................................................................................................................. .................... 19 14.5. f ield sensing (a2d conversions ) and the frame s ynchro pulse ................................................... 19 15. description of end-user programmable items .............................................................. 20 15.1. o utput t ransfer c haracteristic ....................................................................................................... 20 15.1.1. clockwise pa rameter ........................................................................................................... ........... 20 15.1.2. discontinuity point (or zero degree point) .................................................................................... ..... 21 15.1.3. 17-pts lnr pa rameters ......................................................................................................... ............... 21 15.1.4. clamping pa rameters ........................................................................................................... ........... 22 15.2. i dentification .............................................................................................................................. .......... 22 15.3. s ensor f ront -e nd .............................................................................................................................. ... 22 15.3.1. mapxyz ........................................................................................................................ ....................... 23 15.3.2. smism, k and se l_k parameters ................................................................................................. ....... 23 15.3.3. gainmin and gainm ax parameters ................................................................................................ 23 15.4. f ilter .............................................................................................................................. ........................ 24 15.5. d iagnostic f eatures ............................................................................................................................ 2 4 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 4 of 33 datasheet rev. 2.0 25/jun/13 15.6. eeprom endurance ............................................................................................................................. 24 16. MLX90367 self di agnostic ...................................................................................................... .... 25 17. recommended applic ation diag rams .................................................................................. 26 17.1. w iring with the MLX90367 in soic-8 p ackage ................................................................................ 26 17.2. w iring with the MLX90367 in tssop-16 p ackage ........................................................................... 26 18. standard information regarding manufacturability of melexis products with different so ldering processes ........................................................................................ 27 19. esd precautions ............................................................................................................... ............ 27 20. package information ........................................................................................................... ...... 28 20.1. soic8 - p ackage d imensions ............................................................................................................... 28 20.2. soic8 - p inout and m arking ............................................................................................................... 28 20.3. soic8 - s ensitive spot p ositioning ..................................................................................................... 29 20.4. tssop16 - p ackage d imensions ........................................................................................................... 30 20.5. tssop16 - p inout and m arking .......................................................................................................... 31 20.6. tssop16 - s ensitive spot p ositioning ................................................................................................. 31 21. disclaimer .................................................................................................................... ................... 33 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 5 of 33 datasheet rev. 2.0 25/jun/13 3. glossary of terms ? abbreviations ? acronyms ? gauss (g), tesla (t): units for the magnetic flux density ? 1 mt = 10 g ? tc: t emperature c oefficient (in ppm/deg.c.) ? nc: n ot c onnected ? sent: single edge nibble transmission ? adc: a nalog-to- d igital c onverter ? lsb: l east s ignificant b it ? msb: m ost s ignificant b it ? dnl: d ifferential n on- l inearity ? inl: i ntegral n on- l inearity ? risc: r educed i nstruction s et c omputer ? asp: a nalog s ignal p rocessing ? dsp: d igital s ignal p rocessing ? cordic: co ordinate r otation di gital c omputer (i.e. iterative rect angular-to-polar transform) ? emc: e lectro- m agnetic c ompatibility 4. pinout pin # soic-8 tssop-16 1 v dd v dig 1 2 test 0 v ss 1 (ground 1 ) 3 test 2 v dd 1 4 not used test 0 1 5 o ut test 2 2 6 test 1 o ut 2 7 v dig not used 2 8 v ss (ground) test 1 2 9 v dig 2 10 v ss 2 (ground 2 ) 11 v dd 2 12 test 0 2 13 test 2 1 14 not used 1 15 o ut 1 16 test 1 1 for optimal emc behavior, it is recommended to connect the unused pins ( not used and test ) to the ground (see section 16). http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 6 of 33 datasheet rev. 2.0 25/jun/13 5. absolute maximum ratings parameter value supply voltage, v dd (overvoltage) ? 24 v reverse voltage protection ? 12 v (breakdown at -14 v) positive output voltage ? 18 v (breakdown at 24 v) output current (i out ) ? 30 ma (in breakdown) reverse output voltage ? 0.3 v reverse output current ? 50 ma (in breakdown) operating ambient temperature range, t a ? 40c ? ? 150 ? c storage temperature range, t s ? 40c ? ? 150 ? c magnetic flux density ? 1 t exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute maximum rated conditions for extended periods may affect device reliability. 6. description as described on the block diagram the three vector components of the magnetic flux density (b x , b y and b z ) applied to the ic are sensed through the sensor front-end. the respective hall signals (v x , v y and v z ) are generated at the hall plates and amplified. the analog signal processing is based on a fully diffe rential analog chain featuring the classic offset cancellation technique (hall plate 2-phases spinning and chopper-stabilized amplifier). the conditioned analog signals are converted through an adc (15 bits) and provided to a dsp block for further processing. the dsp stage is based on a 16 bi t risc micro-controller whose primary function is the extraction of the position from two (out of three) raw signals (after so-called front-end compensation steps) through the following function: ? ? 2 1 , v k v ? ? ? ? where ?? (alpha) is the magnetic angle ? (b1, b2), v 1 = v x or v y or v z , v 2 = v x or v y or v z and k is a programmable factor to match the amplitude of v 1 and k v 2 . the dsp functionality is governed by the micro-code (firmware ? f/w) of the micro-controller which is stored into the rom (mask programmable). in additi on to the magnetic angle extraction, the f/w controls the whole analog chain, the output transfer characteri stic, the output protocol, the programming/calibration and also the self-diagnostic modes. the magnetic angular information is intrinsically self-c ompensated vs. flux density variations. this feature allows therefore an improved thermal accuracy vs. pos ition sensor based on conventional linear hall sensors. in addition to the improved thermal accuracy, the real ized position sensor features excellent linearity performance taking into account typical manufacturing tolerances (e.g. relative placement between the hall ic and the magnet). http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 7 of 33 datasheet rev. 2.0 25/jun/13 once the position (angular or linear stroke) informatio n is computed, it is further conditioned (mapped) vs. the target transfer characteristic and it is provided at the output(s) as sent output. the linear part of the transfer curve can be adjusted through a multi-point calibration: this back-end step consists of a piece-wise-linear (pwl) output transfer charac teristic - 17 equidistant points with programmable origin over 16 different angle ranges from 65 to 360 degrees. the calibration parameters are stored in eeprom feat uring a hamming error correction coding (ecc). the programming steps do not require any dedicat ed pins. the operation is done using the supply and output nodes of the ic. the programming of t he MLX90367 is handled at both engineering lab and production line levels by the melexis programming unit ptc-04 with the daughterboard db90316 + dedicated MLX90367 software. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 8 of 33 datasheet rev. 2.0 25/jun/13 7. MLX90367 electrical specification dc operating parameters at v dd = 5v (unless otherwise specified) and for t a as specified by the temperature suffix (e or k or l). parameter symbol test conditions min typ max units nominal supply voltage vdd 4.5 5 5.5 v supply current (2) idd 10 ma isurge current (3) isurge 20 ma power-on reset ( rising ) hpor_lh refer to internal voltage vdig 2 2.25 2.5 v power-on reset hysteresis hpor_hyst 50 200 mv start-up level ( rising ) mt4v lh 3.8 4.0 4.2 v start-up hysteresis mt4v hyst 50 200 mv ptc entry level ( rising ) mt7v_lh 5.8 6.2 6.6 v ptc entry level hysteresis mt7v_hyst 50 200 mv output short circuit current i short vout = 0 v vout = 5 v vout = 18 v (t a = 25c) 15 15 18 ma ma ma output load r l pull-down to ground pull-up to 5v 4.7 4.7 10 10 ? ? k ? k ? passive diagnostic output level (broken track diagnostic) (4) bv ss pd broken v ss & pull-down load r l ? 10 k ? 97.5 %v dd bv ss pu broken v ss & pull-up load r l ? 4.7k ? 99.5 100 %v dd bv dd pd broken v dd & pull-down load r l ? 4.7k ? 0 0.5 %v dd bv dd pu broken v dd & pull-up load r l ? 5k ? 2 %v dd 8. MLX90367 isolation specification dc operating parameters at v dd = 5v (unless otherwise specified) and for t a as specified by the temperature suffix (e or k or l). only valid for the package code go i.e. dual die version. parameter symbol test conditions min typ max units isolation resistance between 2 dies 4 m ? 2 for the dual version, the supply current is multiplied by 2. 3 the specified value is valid during early start-up time only; t he current might dynamically exceed the specified value, shortly , during the start-up phase. 4 the sent output signal will no longer be reported. for detailed information, see also section 16 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 9 of 33 datasheet rev. 2.0 25/jun/13 9. MLX90367 timing specification dc operating parameters at v dd = 5v (unless otherwise specified) and for t a as specified by the temperature suffix (e or k or l). parameter symbol test conditions min typ max units main clock frequency ck all contributors ( trimmin g accurac y , suppl y volta g e, thermal and a g ein g) 12.6 13.3 14 mhz main clock frequency thermal drift ? t ck ? 3% ck nom tick time exact value for ck = 13.3 mhz the typical value will be affected by any variation of the clock 3 s sent frame period tframe 882 s internal angle measurement period tper 441 s first angle measurement to sync pulse latency ta1 1084 s second angle measurement to sync pulse latency ta2 643 s field change to sent data : average latency latency filter = 1 (recommended) sent transmission included 1745 1745 s sent frame tick count 294 294 watchdog twd 114.5 118 121.5 ms start-up time (up to first sync pulse) tsu1 1.8 ms start-up time (up to first data received) tsu2 last pause pulse not included 5.9 6.3 ms serial message extended sequence ( 18 frames ) short sequence ( 8 frames ) 15.876 7.056 ms rise time @ cable thresholds : 0.5v and 4.5v see section 9.2 2.97 5.31 s rise time @ receiver 5.07 6.84 s fall time @ cable 2.65 2.82 s fall time @ receiver 4.84 4.9 s http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 10 of 33 datasheet rev. 2.0 25/jun/13 9.1. timing diagrams figure 2 ? start-up phase timings figure 3a ? latencies (acquisition to output delays) ? filter = 1 (recommended) figure 3b ? latency - case filter = 0 (not recommended) http://www..net/
mlx9036 7 rev. 2.0 9.2. a p figure com p 7 p plication d 4 ?schema t p onent value d iagram u t ic used for r comp o c0 c0 2 r0 cin p ct a c f rt a r f rp u r v s used for ri s u sed for r i r ise and fall t o nent 1 2 n 1 n p ut a u f a u f u v n s e and fall ti m tr page 11 o i se and fa l t ime measur e value 10 25% n ot mounted n ot mounted 68 2.2 100 568 10 14.7 n ot mounted m e measure tr iaxis ? p o o f 33 l l time m e e ments (ref: u n n o h p n p o h k o k o o h ments (ref: j m o sition se n asureme n j2716 rev j u ni t n f n f h ms p f n f p f h ms o hms o hms h ms j 2716 rev j a m lx9 0 n sor i c fe n t j an 2010 fi g a n 2010 fig. 0 367 a t. sen t datasheet 25/jun/13 g . 6.3.4) 6.3.4) http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 12 of 33 datasheet rev. 2.0 25/jun/13 10. MLX90367 accuracy specification dc operating parameters at v dd = 5v (unless otherwise specified) and for t a as specified by the temperature suffix (e or k or l). parameter symbol test conditions min typ max units adc resolution on the raw signals sine and cosine (5) r adc 15 bits thermal offset drift #1 (6) at the dsp input ( excl. dac and output stage) temperature suffix e temperature suffix k temperature suffix l -60 -60 -90 +60 +60 +90 lsb 15 thermal drift of sensitivity mismatch (7) xy axis ? temp. suffix e xy axis ? temp. suffix k & l xz (yz) axis ? temp. suffix e xz (yz) axis ? temp. suffix k & l - 0.3 - 0.5 -1 -1 + 0.3 + 0.5 +1 +1 % magnetic angle phase error t a = 25 ? c ? xy axis t a = 25 ? c ? xz axis t a = 25 ? c ? yz axis -0.3 -2 -2 0.3 2 2 deg. thermal drift of magnetic angle phase error y axis, xz ( yz ) axis 0.01 deg. xy ? intrinsic linearity error (8) le t a = 25 ? c ? factory trim. ? smism ? -1 1 deg xz - intrinsic lin. error (11) le t a = 25 ? c ? ?k? trimmed for xz -2.5 ? 1.25 2.5 deg yz - intrinsic lin. error (11) le t a = 25 ? c ? ?k? trimmed for yz -2.5 ? 1.25 2.5 deg noise pk-pk (9) filter = 0, 40mt filter = 1 (recommended) , 30mt 0.10 0.10 0.2 0.2 deg 5 16 bits corresponds to 15 bits + sign. inter nal computation is performed using 16 bits. 6 for instance, in case of a rotary position sensor application, thermal offset drift #1 equal 60lsb 15 yields to max. 0.3 deg. angular error for the computed angular information (output of the dsp). this is only valid if k = 1. ?mlx90365 front-end application note? will be released for more details. 7 for instance, in case of a rotary position sensor application, t hermal drift of sensitivity mismat ch equal 0.5% yields to max . 0.15 deg . angular error for the computed angular information (output of the dsp). see ?mlx90365 front-end application note? for more details. 8 the intrinsic linearity error refers to the ic itself (offse t, sensitivity mismatch, orthogonality) taking into account an idea l rotating field for b x and b y . once associated to a practical magnetic construction and the associated mechanical and magnetic tolerances, the output linearity error increases. however, it c an be improved with the multi-point end-user calibration. the in trinsic linearity error for magnetic angle ? xz and ? yz can be reduced through the programming of the k factor. 9 noise pk-pk (peak-to-peak) is here intended as 6 times the noise standard deviation. the application diagram used is described in the recommended wiring. for detailed information, refer to section filter in application mode (section 15.4). http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 13 of 33 datasheet rev. 2.0 25/jun/13 11. MLX90367 magnetic specification dc operating parameters at vdd = 5v (unless othe rwise specified) and for ta as specified by the temperature suffix (e or k or l). parameter symbol test conditions min typ max units magnetic flux density b x , b y (10) [ b x 2 + b y 2 ] 70 (11) mt magnetic flux density b z (12) 126 mt magnetic flux norm norm [ b x 2 + b y 2 + (b z /1.15) 2 ] 20 (12) mt imc gain (13) gainimc 1.15 1.3 1.4 magnet temperature coefficient tcm -2400 0 ppm/c 12. MLX90367 cpu & memory specification the dsp is based on a 16 bit risc controller. this cpu provides 2.5 mips while running at 10 mhz. parameter symbol test conditions min typ max units rom 10 kb ram 384 b eeprom 128 b 10 the condition must be fulfilled for at least one field bx or by. 11 above 70 mt, the imc ? starts saturating yielding to an increase of the linearity error. 12 below 20 mt, the performances slightly degrade due to a reduction of the signal-to-noise ratio, signal-to-offset ratio. 13 this is the magnetic gain linked to the integrated magneto concentrator (imc ? ) structure. it applies to bx and by and not to bz. this is the overall variation. within one lot, the part to part variation is typically 10% versus the average value of th e imc ? gain of that lot http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 14 of 33 datasheet rev. 2.0 25/jun/13 13. MLX90367 end-user programmable items parameter comments standard # bit mapxyz mapping fields for output angle 0 2 clamp_high clampi ng high (50%) 0% 16 clamp_low clamping low (50%) 100% 16 smism sensitivity mismatch factor x,y mlx 15 k sensitivity mismatch factor x (y) , z mlx 15 sel_k location for for k ? correction 0 1 gainmin low threshold for virtual gain 00h 8 gainmax high threshold for virtual gain 28h 8 gainsaturation gain saturates on gainmix and gainmax 0h 1 pwmpol pwm polarity 1h 1 dp discontinuity point 0h 15 cw clock wise 0h 1 melexisid1 melexis identification reference mlx 16 melexisid2 melexis identification reference mlx 16 melexisid3 melexis identification reference mlx 16 w 17pts ? output angle range 0h 4 lnr_yn 17pts ? y-coordinate point n (n = 2,1,2 ?16) 0..100% 16 diag settings 16 bit diagnostics enablling fdffh 16 crc_disable enable eeprom crc check ( 3131h= disable) 0h 16 filter fir filter 0 1 ram probe address for ram probe 0 16 serial_id_1 not available to user until memlock performed. see: eeprom_MLX90367 _default_settings.doc for more details 56eeh 16 serial_id_2 id of user serial message #2 0 16 serial_id_3 id of user serial message #3 0 16 serial_id_4 id of user serial message #4 0 16 ee_sent_serial 0 16 ee_serial_data_1 0 16 ee_serial_data_2 0 16 ee_serial_data_3 0 16 ee_serial_data_4 0 16 ee_userid1 1 16 ee_userid2 303h 16 ee_userid3 mlx 16 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 15 of 33 datasheet rev. 2.0 25/jun/13 14. sent output protocol 14.1. generality the MLX90367 complies with the sub-set ? a.3 single secure sensors ? of the norm j2716 revised jan2010 , but one restriction: the mode wit hout pause pulse is not featured. 14.2. single secure fast channel MLX90367 delivers sent frames according the single secu re format. this format is explicitly described in this section. 14.2.1. frame content the MLX90367 sent frames have 6 data nibbles, and are formatted according the below table. the optional pause pulse is however always present so that every messages have the same fixed length. sent frame : status d1-msn d1-midn d1-lsn d2-msn d2-midn d2-lsn crc optional pause status[0] channel 1 indicator ( "1" = error, "0" otherw ise ) status[1] 0 status[2] enhanced serial message status[3] enhanced serial message crc enhanced crc (the legacy crc is not featured) d1 12 bit angle d2-msn d2-msn=rolling counter-msn d2-midn d2-midn=rollingcounter-midn d2-lsn d2-lsn=inv erted copy of d1-msn 14.2.2. diagnostic reporting through the fast channel 14.2.2.1. diagnostic reporting, bit status[0] the bit status[0] is high whenever the three following conditions are met: 1. a diagnostic (analog/environmental) detects an error * 2. the reporting of the above error is enabled ** 3. the debouncing time has elapsed. * a diagnostic of type digital cause the circuit to switch in fail-safe-mode ** see eeprom bits ee_diag_settings 14.2.2.2. diagnostic reporting, channel 1 the diagnostic can be reported through the 12 bit payl oad of channel 1, and not only through the status bit status[0]. the eeprom parameters ee_errorcod e controls the diagnostic r eporting through channel 1 as follow: http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 16 of 33 datasheet rev. 2.0 25/jun/13 if ee_report[2:0]=0, the channel 1 reports the angl e, and not the diagnostic, as if no diagnostic. the error is reported only thanks to the status bits. if ee_report[2:0]>0, the channel1 payload contains the value channel1 = (4088 + ee_report[2:0]) 14.2.2.3. diagnostic reporting time the diagnostic reporting time is programmable (defined as multiple of a macro-cycle unit time). a macro-cycle is a sequence of 20 angle acquisit ions, and has a duration of approximately 6 ms. 14.2.2.4. diagnostic debouncing the diagnostic reporting is debounced . the debouncing paramater is us er-programmable, by steps of approximately 6 ms. 14.2.3. pause pulse a pause pulse, as defined by the standard, is present at the end of every frame. the pause pulse mode cannot be disabled. the pause pulse lenght is adjusted by the ci rcuit so that the frame period is constant. the field sensing and the frame synchro pulse are in sync. 14.2.4. fast channel crc the MLX90367 features the new recommended implementation. 14.3. slow channel 14.3.1. enhanced serial message the circuit encodes the slow messages according th e enhanced serial message format as specified at chapter 5.2.4.3 of the sent norm, e xcept for the following restriction: the configuration bit is always 0, meaning that t he payload consists in 12-bit data and 8-bit message id. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 17 of 33 datasheet rev. 2.0 25/jun/13 14.3.2. serial message sequence the circuit complies with the following sub-set sp ecifications of the norm for pressure sensors (the norm for the angular sensor case does not specify the serial message format) # 8bit id item 12 bit data comments 1 29 sensor id prog. ee_userid1_12lsb 2 01 error code ram described at next chapter ? 3 2a sensor id prog. {ee_userid2_8lsb, ee_userid1_4msb } 4 01 / 80 error code / user-defined ram value ram ram variable @ address ee_ram_probe_addr e.g. temp, gaincode, fieldstrength 5 2b sensor id prog. { ee_userid3_4lsb,ee_userid2_8msb } 6 01 error code ram 7 2c sensor id prog. ee_userid3_12msb 8 01 / 80 error code / user-defined ram value ram optional part ( ee_extendedsequence = 1 ) 9 06 sent revision 003 10 01 error code ram 11 ee_serial_id1 user-defined #1 ee_serial_data_1 e.g. sensor type, manufacturing code 12 01 / 80 error code / user-defined ram value ram ram variable @ address ee_ram_probe_addr e.g. temp, gaincode, fieldstrength 13 ee_serial_id12 user-defined #2 ee_serial_data_2 e.g. 07 ? transfer characteristic 14 01 error code ram 15 ee_serial_id3 user-defined #3 ee_serial_data_3 e.g. 03 ? sensor type 16 01 / 80 error code / user-defined ram value ram 17 ee_serial_id4 user-defined #4 ee_serial_data_4 18 01 error code ram table. serial message sequence the first part (positions 1 to 8) provides t he error code and the sensor id alternatively. the second part (positions 9 to 18) is optional as a whole enabled with eeprom bit ee_extendedsequence. this second part consists of the error code (5 occu rrences), 4 user-defined messages (id and data) and the sent revision. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 18 of 33 datasheet rev. 2.0 25/jun/13 14.3.3. serial message sequence period sequence length (serial message count) sequence length (frame count) sequence period (ms, typical) 8 144 121 18 324 273 14.3.3.1. user-defined ram value the payloads of the positions 4, 8 (and 12, 16 if relevant) are user-defined. three possibilities: 1. error code 2. 12 lsbs of a user-defined ram value 3. 12 msbs of a user-defined ram value the positions 4, 8, 12, 16 refer necessarily to the same user-defined ram address. three ram addresses are of interest: the actual absolute temperature (t) can be derived from the 12 msbs of ramt empsens (see possibility 3 above) using the following formula (decimal): t = 8 (ramtempsens ? 35) + 2048 the accuracy of the actual temperature is = 10 degc. 14.3.3.2. error code rate the error codes are on purpose transmitted every second message, to maximize the rate, which equals then 36 sent frames, when the user-defined ram mode is not enabled (72 otherwise). 14.3.4. serial message error code bit position diagnostic comments 0 gainoos front-end gain code out-of-spec (too low, too high) 3 adcsatura diag 4 adcmonitor adc monitor 5 vanamoni analog internal supply too low 6 vddmoni external supply too low, too high 7 rough offset front-end rough offset too low, too high 8 tempmonitor temperature sensor monitor variable name address description ramtempsens 4e calibrated temperature sensor value vg 46 actual virtual gain norm 48 actual field norm http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 19 of 33 datasheet rev. 2.0 25/jun/13 14.4. start-up during the chip initialization, the output remains high unt il the circuit emits four initialization frames (all 6 data nibble zero). the fifth frame is not an initializat ion frame but a valid frame containing a measured angle. see also section 9 ?timing specifications?. 14.5. field sensing (adc conversion s) and the frame synchro pulse the digital angle (fast channel payload) results of the average of two angles. these angles are themselves computed from 4 adcs values. the time between the adcs and the frame synchro pulse is constant. as a result, the phase delay between the magnetic field angle and the sent synchro pulse is constant, allowing filtering at the ecu side. see also section 9 ?timing specifications?. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 20 of 33 datasheet rev. 2.0 25/jun/13 15. description of end-u ser programmable items 15.1. output transf er characteristic to define the transfer function (lnr): ? with 17 equidistant points for which on ly the y coordinates are defined. parameter value unit clockwise 0 ? counterclockwise 1 ? clockwise lsb dp 0 ? 359.9999 deg lnr_y0 lnr_y1 ? lnr_y16 -50 ? + 150 % w 65.5 ? 360 deg clamp_low 0 ? 100 % clamp_high 0 ? 100 % 15.1.1. clockwise parameter the clockwise parameter defines the magnet rotation direction. ? ccw is the defined by the 1-4-5-8 pin order direction for the soic8 package and 1-8-9-16 pin order direction for the tssop16 package. ? cw is defined by the reverse direction: 8-5-4- 1 pin order direction for the soic8 and 16-9-8-1 pin order direction for the tssop16 package. refer to the drawing in the sensitive spot positioning sections (section 20.3) http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 21 of 33 datasheet rev. 2.0 25/jun/13 15.1.2. discontinuity point (or zero degree point) the discontinuity point defines the 0 point on the circ le. the discontinuity point places the origin at any location of the trigonometric circle. the dp is used as reference for all the angular measurements. figure 5 - discontinuity point positioning 15.1.3. 17-pts lnr parameters the lnr parameters, together with the clamping valu es, fully define the relati on (the transfer function) between the digital angle and the output signal. the shape of the MLX90367 transfer function from the digital angle value to the output voltage is described by the drawing below. in the 16-pts mode, the output transfer characteristic is piece-wise- linear (pwl). figure 6 - input range from 65.5 up to 360 all the y-coordinates can be progra mmed from -50% up to +150% to allow clamping in the middle of one segment (like on the figure), but the output value is limited to clamplow and clamphigh values. between two consecutive points, the output characteristic is interpolated. the parameter w determines the input range on which the 17 points (16 segments) are uniformly spread: 0 360 the placement of the discontinuit y point (0 point) is programmable. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 22 of 33 datasheet rev. 2.0 25/jun/13 w range ? x ? w range ? x 0 (0000b) 360.0deg 22.5deg 8 180.0deg 11.3deg 1 320.0deg 20.0deg 9 144.0deg 9.0deg 2 288.0deg 18.0deg 10 120.0deg 7.5deg 3 261.8deg 16.4deg 11 102.9deg 6.4deg 4 240.0deg 15.0deg 12 90.0deg 5.6deg 5 221.5deg 13.8deg 13 80.0deg 5.0deg 6 205.7deg 12.9deg 14 72.0deg 4.5deg 7 192.0deg 12.0deg 15 (1111b) 65.5deg 4.1deg outside of the selected range, the output will remain in clamping levels. 15.1.4. clamping parameters the clamping levels are two independent values to limit the output voltage range. the clamplow parameter adjusts the minimum output code. the clamphigh parameter sets the maximum output code. both parameters have 16 bits of adjus tment and are available for both lnr modes. 15.2. identification parameter value melexisid1 melexisid2 melexisid3 0 ? 65535 0 ? 65535 0 ? 65535 customerid1 customerid2 customerid3 0 ? 65535 0 ? 65535 0 ? 65535 identification number: 48 bits (3 words) freel y useable by customer for traceability purpose. 15.3. sensor front-end parameter value mapxyz 0 .. 3 smism 0 .. 32768 k 0 .. 32768 sel_k 0 or 1 gainmin gainmax gainsaturation 0 ? 41 0 ? 41 0.. 1 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 23 of 33 datasheet rev. 2.0 25/jun/13 15.3.1. mapxyz the mapxyz parameter defines which fields are used to calculate the angle. the different possibilities are described in the tables below. this 2 bit value selects the first (b1) and second (b2) field components according the table below. mapxyz b1 b2 angular 0 ? 00b x y xy mode 1 ? 01b zx x xzx mode 2 ? 10b y zx yzx mode 3 ? 11b y zy yzy mode mapxyz = 3 is not recommended. 15.3.2. smism, k and sel_k parameters (i) smism when the mapping (b1=x, b2=y) is selected, smsim defines the sensitivity mismatch factor that is applied on b1, b2; when another b1, b2 mapping is selected, this parameter is ?don?t care?. this parameter is trimmed at fact ory; melexis strongly recommends to not over write it for optimal performance. (ii) k when the mapping (b1=x, b2=y) is not selected, k defines the sensitivity mismatch fa ctor that is applied on b1or b2 (according to parameter sel_k ? see be low). when the mapping (b1=x, b2=y) is selected, this parameter is ?don?t care?. this parameter is trimmed at factory for mapping (b1=z, b2=x). melexis recommends to fine trim it when a smaller linearity error (le) is required and a di fferent mapping than (b1=x, b2=y) is selected. (iii) sel_k when the mapping (b1=x, b2=y) is not selected, sel_k defines the component on which the sensitivity mismatch factor k (see above): sel_k = 0 means b1 ? k ? b1 and sel_k = 1 means b2 ? k ? b2. 15.3.3. gainmin and gainmax parameters gainmin and gainmax define the thresholds on the gain code outside which the fault ?gain out of spec.? is set; if gainsaturation is set, then the virtual gain co de is saturated at gainmin and gainmax, and no diagnostic fault is set since the saturations apply before the diagnostic check. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 24 of 33 datasheet rev. 2.0 25/jun/13 15.4. filter parameter value filter 0, 1 the MLX90367 features a filter that is enabled when filter = 1. the filter is of type ?moving average ?. it averages the two most recent internal angle values. when the filter is enabled, the sent data holds the average of the two most recent internal angles. we recommend to enable the filter, in order to benefit from a noise reduction of 30% compared to the case filter = 0. given that two angle values are computed per each sent frame, the latency increases in this case only marginally. filter = 0 corresponds to no filtering, and may be se lected to optimize the latency (by about 10%), whenever the latter is system-critical (e.g. stability of a close-loop system). 15.5. diagnostic features refer to application_note_diagnostic_behavior_9036 7 for ee_crc_enable function description and for diagnostic features which can be enabled at user. 15.6. eeprom endurance although the eeprom is used for calibration data storage (similarly to an otprom), the MLX90367 embedded eeprom is qualified to guarantee an endu rance of minimum 1000 write cycles at 125 ? c for engineering/calibration purpose. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 25 of 33 datasheet rev. 2.0 25/jun/13 16. MLX90367 self diagnostic the MLX90367 provides numerous self-diagnostic f eatures. those features increase potentially the functional safety of safety-related systems as it reduces the risk of erroneous angle reporting in case of internal or external failure modes (?fail-safe?). diagnostic item action effect on output type monitoring rate reporting rate st-up phase diagnostics ram march c- 10n test fail-safe mode ** ** cpu reset after 120ms diagnostic low/ high reporting (optional) digi hw n/applicable (start-up only) n/applicable (start-up only) watchdog bist fail-safe mode ** ** cpu reset after 120ms diagnostic low/ high reporting (optional) digi hw n/applicable (start-up only) n/applicable (start-up only) under voltage monitoring supplymoni = (mt3vb) or (mt4vb) st-up on hold diagnostic low/high environ &analog n/applicable (start-up only) n/applicable (start-up only) over voltage monitoring mt7v ptc entry out in hiz environ n/applicable (start-up only) n/applicable (start-up only) bg loop diag. rom 16bit checksum ( continuous ) fail-safe mode ** ** cpu reset after 120ms diagnostic low//high reporting (optional) digi hw 800ms 800ms eeprom 8 bit crc chec k (continuous) fail-safe mode ** ** cpu reset after 120ms diagnostic low/high reporting (optional) digi hw 10ms 10ms watchdog ( continuous ) cpu reset -- digi hw 120ms n/a dsp loop diag. a dc clipping adcclip debouncing (prog.) sent status bit0 = 1 (optional) environ &analog 5/dsp 6ms x int (thres/step_up) virtual gain code out-of-spec gainoos debouncing (prog.) sent status bit0 = 1 (optional) environ &analog 1/dsp 6ms x int (thres/step_up) virtual gain code saturation [gainmin..gainmax] saturation (optional) gain saturated @ gainmin- gainmax environ &analog n/applicable not a diagnostic n/applicable not a diagnostic adc monitor (analog to digital converter) adcmoni debouncing (prog.) sent status bit0 = 1 (optional) a nalog hw 1/dsp 6ms x int (thres/step_up) under voltage monitoring supplymoni = (mt3vb) or (mt4vb) supply debouncing (prog.) sent status bit0 = 1 (optional) environ &analog 1/dsp 6ms x int (thres/step_up) over voltage monitoring mt7v ptc entry after ptc debouncing out in hiz environ 2ms 2ms temperature sensor monitor tempmoni debouncing (prog.) sent status bit0 = 1 (optional) a nalog 1/dsp 6ms x int (thres/step_up) temperature > 170degc ( ? 20) temperature < -60degc ( ? 20) saturate value used for the compensation to -40degc and +150degc resp. no effect environ &analog n/applicable not a diagnostic hardware diag. ( continuously checked by dedicated logic ) read/write access out of physical memory fail-safe mode ** ** cpu reset after 120ms diagnostic low/high digi hw n/a immediate diag n/a immediate diag write access to protected area (io and ram words) fail-safe mode ** ** cpu reset after 120ms diagnostic low/high digi hw n/a immediate diag. n/a immediate diag. unauthorized mode entry fail-safe mode ** ** cpu reset after 120ms diagnostic low/high digi hw n/a immediate diag n/a immediate diag eeprom error correcting code ( hamming correction ) (transparent) error correction no effect digi hw n/a. n/a hardware diag. ( continuously checked by dedicated analog circuits ) broken vss cpu reset on recovery pull down load => diag. low pull up load => diag. high environ n/a immediate diag. n/a immediate diag. broken vdd cpu reset on recovery pull down load => diag. low pull up load => diag. high environ n/a immediate diag n/a immediate diag resistive cable test st-up on hold diagnostic low/high environ n/a immediate diag. n/a immediate diag. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 26 of 33 datasheet rev. 2.0 25/jun/13 17. recommended application diagrams 17.1. wiring with the MLX90367 in soic-8 package figure 7 ? recommended wiring for the MLX90367 in soic8 package 17.2. wiring with the ml x90367 in tssop-16 package figure 8 ? recommended wiring for the MLX90367 in tssop16 package (dual die) v dd v ss out v dig test x c 1 c 2 c 5 c 4 c 3 r 1 r 2 gnd vdd output optimal emc/esd performances c 1, c 2 1nf close to ic terminals c 3 c 4 100nf 100nf close to ic terminals close to connector c 5 2.2nf close to connector r 1 10 ? recommended r 2 120 ? recommended 1 8 5 7 2, 3, 4, 6 MLX90367 v dd 2 v ss 2 out 2 v dig 2 test x 2 c 21 c 22 c 25 c 24 c 23 r 21 r 22 gnd 2 vdd 2 output 2 v dd 1 v ss 1 out 1 v dig 1 test x 1 c 11 c 12 c 15 c 14 c 13 r 11 r 12 gnd 1 vdd 1 output 1 optimal emc/esd performance c 11, c 12 c 21, c 22 1nf close to ic terminals c 13, c 23, c 24, c 14 100nf 100nf close to ic terminals close to connector c 15 c 25 2.2nf close to connector r 11 r 21 10 ? recommended r 12 r 22 120 ? recommended MLX90367 3 2 15 11 10 6 4,13,16,14 1 5,7,8,12 9 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 27 of 33 datasheet rev. 2.0 25/jun/13 18. standard information regard ing manufacturability of melexis products with different soldering processes our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: reflow soldering smd?s (surface mount devices) ? 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 smd?s (surface mount devices) and thd?s (through hole devices) ? en60749-20 resistance of plastic- encapsulated smd?s 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 thd?s (through hole devices) ? en60749-15 resistance to soldering temperature for through-hole mounted devices solderability smd?s (surface mount devices) and thd?s (through hole devices) ? eia/jedec jesd22-b102 and en60749-21 solderability for all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, te mperature profile etc) additional classification and qualification tests have to be agreed upon with melexis. the application of wave soldering for smd?s is allowed only after consulting melexis regarding assurance of adhesive strength between device and board. melexis recommends reviewing on our web site the general guidelines soldering recommendation ( http://www.melexis.com/q uality_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 cons ervation by promoting lead free solutions. for more information on qualifications of rohs compliant pr oducts (rohs = european directive on the restriction of the use of certain hazar dous substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx 19. esd precautions electronic semiconductor products are sens itive to electro static discharge (esd). always observe electro static discharge control procedures whenever handling semiconductor products. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 28 of 33 datasheet rev. 2.0 25/jun/13 20. package information 20.1. soic8 - package dimensions 20.2. soic8 - pinout and marking 0.19 0.25 notes: all dimensions are in millimeters (anlges in degrees). * dimension does not include mold flash, protrusions or gate burrs (shall not exceed 0.15 per side). ** dimension does not include interleads flash or protrusion (shall not exceed 0.25 per side). *** dimension does not include dambar protrusion. allowable dambar protrusion shall be 0.08 mm total in excess of the dimension at maximum material condition. dambar cannot be located on the lower radius of the foot. 5.80 6.20** 1.27 typ 4.80 4.98* 1.52 1.72 0.100 0.250 1.37 1.57 0.36 0.46*** 3.81 3.99** 0 8 0.41 1.27 marking : part number MLX90367 (3 digits) 367 die version (3 digits) 123456 lot number (6 digits) week date code (2 digits) year date code (2 digits) yy ww 1 8 4 5 367abs 123456 top bottom abs vdd test0 test2 n otused vss vdig test1 out xx xx split-lot http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 29 of 33 datasheet rev. 2.0 25/jun/13 20.3. soic8 - sensitive spot positioning the MLX90367 is an absolute angular position sensor but the linearity error (see section 10) does not include the error linked to the absolute reference 0 deg (which can be fixed in the application through the discontinuity point). 0.46 +/- 0.06 1.25 1.65 1.96 2.26 123 4 8765 ccw cw x y angle detection MLX90367 soic8 1234 8765 ~ 0 deg.* s n 1 234 8765 s n ~ 90 deg.* 1 234 8765 s n ~ 270 deg.* 1234 8765 s n ~ 180 deg.* * no absolute reference for the angular information. s http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 30 of 33 datasheet rev. 2.0 25/jun/13 20.4. tssop16 - package dimensions 0.09 0.20 dia 1.0 ref notes: all dimensions are in millimeters (anlges in degrees). * dimension does not include mold flash , protrusions or gate burrs (shall not exceed 0.15 per side). ** dimension does not include interleads flash or protrusion (shall not exceed 0.25 per side). *** dimension does not include dambar protrusion. allowable dambar protrusion shall be 0.08 mm total in excess of the dimension at maximum material condition. dambar cannot be located on the lower radius of the foot. ref: reference dimensions as stated in packaging supplier pod , based on jedec. 0.20 0.04 12 o ref 0.09 min 0.09 min 0.50 0.75 1.0 0.2 12 o ref 0 o 8 o 4.90 5.10* 1.1 max 0.05 0.15 0.85 0.95 0.19 0.30*** 6.4 0.2 4.30 4.50** 0.65 0.04 1.0 ref 1.0 ref http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 31 of 33 datasheet rev. 2.0 25/jun/13 20.5. tssop16 - pinout and marking 20.6. tssop16 - sensit ive spot positioning 0.30 +/- 0.06 1.95 2.45 1.84 2.04 2.76 2.96 18 9 16 ccw cw x 2 x 1 y 2 y 1 die 2 die 1 http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 32 of 33 datasheet rev. 2.0 25/jun/13 the MLX90367 is an absolute angular position sensor but the linearity error (see section 10) does not include the error linked to the absolute reference 0deg (which can be fixed in the application through the discontinuity point). angle detection MLX90367 tssop16 ~ 270 deg.* ~ 90 deg.* 1 8 9 16 die 2 die 1 s n ~ 180 deg.* ~ 0 deg.* 1 8 9 16 die 2 die 1 s n ~ 0 deg.* ~ 180 deg.* 1 8 9 16 die 2 die 1 s n 1 8 9 16 die 2 die 1 s n ~ 90 deg.* ~ 270 deg.* * no absolute reference for the angular information. http://www..net/
MLX90367 triaxis ? position sensor ic feat. sent MLX90367 page 33 of 33 datasheet rev. 2.0 25/jun/13 21. disclaimer devices sold by melexis are covered by the warran ty 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 nec essary to check with melexi s for current information. this product is intended for use in normal co mmercial applications. applications requiring extended temperature range, unusual environment al requirements, or high reliability applications, such as military, medical life-support or life-sustai ning 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, including but not limited to personal injury, property damage, loss of profits, loss of use, inte rrupt 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 liabilit y to recipient or any third party shall arise or flow out of melexis? rendering of technical or other services. ? 2013 melexis n.v. 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 http://www..net/

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