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MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 1 of 27 features and benefits programmable hall effect sensor 12-bit magnetic flux density 8-bit temperature (pas4 & psi-5) extensive diagnostic embedded -controller piecewise linearization dual die for redundancy (safety) measurement range from 30mt to 170mt programmable through the connector dual customer area for supply chain split over 48 bit customer ids available tssop16 smd package rohs compliant lead free component, suitable for lead free soldering profile 260c application examples rotary position sensor linear position sensor ordering code product code temperature code package code option code packing form code MLX90292 l go cae-000 re MLX90292 l go cae-000 tu legend : temperature code: l for temperature range -40c to 150c package code: go for tssop16 option code: xxx-000: standard versio n packing form: re for reel tu for tube ordering example: MLX90292lgo-cae-000-re
rev. 2 1. functional diagram figure 2. description the MLX90292 is a cmos hall sen s help of a dedicated firmware, the measured. it is designed for co ntact automotive electrical power steering a the MLX90292 is a dual d ie and the fol the front-end part of the sensor m e data. this data is pre-calibrated (of transmitted over a digital interface to the electron MLX90292 smd programmable linear hall pwm / pas4 page 2 of 27 r o m - f /w figure 1: functional block diagr a m s or with embedded controller. with its specific a rchitecture magnetic flux density perpendicular to the chip s ntact -less magnetic flux measurement that is freq uent a pplications. ie and the fol lowing specification is valid for both die. e asures the perpendicular magnetic field and conv (of fset, sensitivity matching, temperature correc tio the electron ic control unit (ecu). MLX90292 hall sensor ic pas4 / psi5-a mar/12 rchitecture and the chip s urface can be uent ly required in conv erts it into digital tio n) and is then
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 3 of 27 table of contents 1. functional diagram.............................. ................................................... ..................................... 2 2. description..................................... ................................................... ............................................... 2 3. glossary of terms .............................. ................................................... ...................................... 4 4. pin description................................. ................................................... ............................................ 5 5. absolute maximum ratings ....................... ................................................... ............................. 5 6. MLX90292 electrical specifications ............. ................................................... ...................... 6 7. MLX90292 pin specifications .................... ................................................... ................................ 7 8. timing specification pas4 / psi5-a.............. ................................................... ............................ 7 9. timing specification pwm ....................... ................................................... .................................. 9 10. sensor specifications......................... ................................................... ................................... 10 11. description of the MLX90292 functions/blocks . ................................................... ......... 11 11.1. f iltering ................................................... ................................................... .......................................... 11 11.2. s elf t est ................................................... ................................................... .......................................... 11 11.3. por ......................................... ................................................... ................................................... .......... 11 11.4. c harter of f unctional s tatus ................................................... ................................................... .... 11 12. eeprom........................................ ................................................... ................................................... 12 12.1. t able of content ................................................... ................................................... ........................... 12 12.2. eeprom l ock - mechanism ................................................... ................................................... ............ 14 13. interfaces ................................... ................................................... ................................................ 14 13.1. pas4 / psi5-a i nterface ................................................... ................................................... ................ 14 13.1.1. protocol: manchester code ................. ................................................... ............................................ 14 13.1.2. data packages.............................. ................................................... ................................................... . 15 13.1.3. data ranges ............................... ................................................... ................................................... ... 19 13.1.4. continuous transmission (normal operation) ................................................... ................................ 20 13.1.5. transmission after reset (power-on) ....... ................................................... ....................................... 20 13.2. p rogramming in pwm mode ................................................... ................................................... .......... 20 14. recommended application diagrams ............. ................................................... .................. 22 14.1. pas4, psi5-a and 2- wire pwm................................................ ................................................... ......... 22 14.2. 3- wire pwm ............................................... ................................................... ......................................... 23 15. standard information regarding manufacturabili ty of melexis products with different soldering processes ................ ................................................... ..................... 24 16. esd precautions............................... ................................................... ......................................... 24 17. package information .................................................. ................................................... ............ 25 17.1. tssop16 ? p ackage d imensions ................................................... ................................................... ... 25 17.2. tssop16 ? p inout and s ensitive spot positioning ................................................... ........................ 26 18. disclaimer ................................... ................................................... ................................................. 2 7
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 4 of 27 3. glossary of t e rms gauss (g), tesla (t): magnetic flux density units where 1 mt = 10 g. adc: analog-to-digital converter asp: analog signal processing dsp: digital signal processing eeprom: electrically erasable programmable read only memory esd: electro-static discharge c: micro-controller mux: multiplexer osc: oscillator ram: random access memory tc: sensitivity temperature coefficient (in ppm/deg.c.). por: power on reset psi: peripheral sensor interface pas: peripheral acceleration interface s/w: firmware h/w: hardware
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 5 of 27 4. pin description the MLX90292 is available as a 16-pin dual die pack age, with the following pinout. pin # nam e i/o des c ription die 1 die 2 1 vss_1 g ground x 2 n/c not used 3 out_1 o digital output, open drain x 4 testana_2 o for test x 5 must1_1 i for test x 6 must0_2 i for test x 7 vdd_2 s power supply connection x 8 vdec_2 s regulated supply x 9 vss_2 g ground x 10 out_2 o digital output, open drain x 11 n/c not used 12 testana_1 o for test x 13 must1_1 i for test x 14 must0_1 i for test x 15 vdd_1 s power supply connection x 16 vdec_1 s regulated supply x 5. absolute maximum ratings parameter value supply voltage, vdd 18 v reverse voltage protection - 10 v reverse output current 400 a operating ambient temperature range, t a -40c .. 125 c storage temperature range, t s -50c .. 125 c storage time 10 years processability time - note 1) 2 years note: 1) time counted from package date code durin g which the correct process ability is guaranteed. exceeding t h e a b s o l u t e m a x i m u m r a t i n g s m a y c a u s e p e r m a n e n t d a m a g e . exposure t o a b s o l u t e maximum rated conditions for extended peri ods may affect device reliability.
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 6 of 27 6. MLX90292 electrical specifications dc operating parameters at vdd = + 6v and for t a = ? 40c? + 125c (unless otherwise specified) parameter symbol test conditions min typ max units supply voltag e operating supply voltage vdd 4.6 8.7 v regulated supply voltage vdec note 1) 3.0 3.6 v por level por refer to vdig 2.5 3.3 v por level hysteresis porhy 0.1 supply current normal operation (pas4 & pwm) nominal, idd low idd low 13 19 ma iddhigh1 idd high1 high level with 200 between out and vdd. 43 43 90 64 ma ma supply current optional operation (psi5-a ) nominal, idd low idd low - 19 ma delta_i delta_idd high level with 920 between out and vdd 22 30 ma startup level (related to external vdd, pin1) startup level su high 4.4 4.6 v startup hysteresis su hys note 2) 0.5 1.0 v startup time startup time t startup note 3) 15 ms switch point for extra internal current for pas4 ( related to external vd d ) switch point sp 6 v switch point hysteresis sphys 0.3 1 v programming entry le v e l programming supply voltage vddprog start of programming 9.5 v programming supply voltage hysteresis vddproghys 0.3 v notes: 1) supply for ic, external connection to capacitor only 2) the hysteresis voltage is specified as measured in test mode; in application the value is approxima tely reduced by the idd high1 multiplied by the line resistance. 3) time elapsed between startup and first data pack age sending
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 7 of 27 7. MLX90292 pin specification s dc operating parameters at vdd = +6v and for t a = ? 40c? + 125c (unless otherwise specified) parameter symbol test conditions min typ max units digital outputs open drain (pull-up resistor n eed ed ) compliance current icompl driver on, v out = +6v 55 ma compliance voltage vcompl1 driver off, max allowed voltage on out = 14v 13 v saturation voltage vsat driver on iout= 50ma 0.2 0.8 v leakage current ileak driver off ? vout = vpullup = 8v 1 100 a 8. timing specification pas4 / psi5-a dc operating parameters at vdd = +6v and for t a = ? 40c? + 125c (unless otherwise specified) parameter symbol test conditions min typ max units clock deviation clk dev -5 5 % fall/rise time current slope t fall-rise strongly depends on external components, 20%..80% (of < idd) 100 200 300 ns mark/space ratio ratio (t fall,80 ? t rise,20 ) / t bit (t fall,20 ? t rise,80 ) / t bit 47 50 53 % normal operat i on frame update rate framerate 1.9 2 2.1 khz signal latency sig lat note 1) 342 380 418 s transmission speed tr speed 238 250 262 kbit / s bit time t bit note 4) 3.8 4 4.2 s half bit time t bhalf note 4) 1.9 2 2.1 s frame gap time t fgap t gap >t bit note 2) 4.2 8 s package gap time t pgap note 2) 254 268 282 s optional operation frame update rate framerate 0.95 1 1.05 khz signal latency sig lat note 1) 796 884 972 s transmission speed tr speed 119 125 131 kbit / s bit time t bit note 4) 7.6 8 8.4 s half bit time t bhalf note 4) 3.8 4 4.2 s frame gap time t fgap t gap >t bit note 3) 8.4 16 s package gap time t pgap note 3) 508 536 564 s not e : 1) signal latency is defined as the time between th e second half of the sampling integration time interval of the hall plate voltage and the transmis sion of the last bit of the data package 2) see figure 2. 3) see figure 3. 4) see figure 4.
rev. 2 figure 2: signal timing figure 3: signal timing half bi 20% ? idd figure MLX90292 smd programmable linear hall pwm / pas4 page 8 of 27 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 d11 d10 d9 d8 d11 d10 d9 d8 timing (frame), pas4/psi5-a normal operation timing (frame), pas4/psi5-a optional opera tion. bi t ti m e half bit time bit time 80% ? idd 80% ? idd 20% ? idd ? idd bit ti m e figure 4: bit time definiti ons. MLX90292 hall sensor ic pas4 / psi5-a mar/12 0 0 1 1 d7 d6 d5 d4 d3 d2 d1 d0 0 0 1 1 d7 d6 d5 d4 d3 d2 d1 d0
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 9 of 27 9. timing specification pwm dc operating parameters at vdd = + 6v and for t a = ? 40c? + 125c (unless otherwise specified) parameter symbol test conditions min typ max units fall/rise time current slope t fall-rise strongly depends on external components, 20%..80% (of < is) 100 300 ns normal pwm operation pwm frequency pwm_freq with ee_pwm_freq = 0 or 7 1.8 2 2.2 khz with ee_pwm_freq = 1 0.9 1 1.1 khz with ee_pwm_freq = 2 450 500 550 hz with ee_pwm_freq = 3 360 400 440 hz with ee_pwm_freq = 4 225 250 275 hz with ee_pwm_freq = 5 180 200 220 hz with ee_pwm_freq = 6 112 125 138 hz signal latency (note 1) sig lat with ee_pwm_freq = 0 or 7 792 880 968 s with ee_pwm_freq = 1 1.692 1.88 2.068 ms with ee_pwm_freq = 2 3.492 3.88 4.268 ms with ee_pwm_freq = 3 4.392 4.88 5.368 ms with ee_pwm_freq = 4 7.092 7.88 8.668 ms with ee_pwm_freq = 5 8.892 9.88 10.87 ms with ee_pwm_freq = 6 14.29 15.88 17.47 ms pwm upper diagnostic range diag_high 98 % pwm lower diagnostic rangel diag_low 2 % pwm signal operating range sig_range note 2) 3 97 % pwm resolution pwm_res 12 bits note: 1) signal latency is defined as the time bet ween the second half of the sampling integration time interval of the hall plate voltage of cycle n and the end of the next pwm cycle n+1. 2) represents the value of the duty cycle figure 5: signal timing (frame), pwm opera tion
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 10 of 27 10. sensor s p ecifications dc operating parameters at vdd = + 6v and for t a = ? 40c? + 125c (unless otherwise specified) parameter symbol test conditions min typ max units magnetic se nsor linearity error ling note 1) 0.2 % effective number of bits bits eff. no filter active 9.4 10 bits offset drift b drift note 1) 37 lsb 12 gain drift g drift note 1) -2 2 % gain aging g aging -0.5 0.5 % sensitivity range f range field range +/- 30 +/- 170 mt thermomete r temperature range t range -50 155 o c temperature accuracy t acc1 -10 0 +10 o c temperature resolution t resolution 8 bits 0.8 o c note: 1) the linearity error is the signal deviation (ful l scale) to the regression line 2) the offset error is the signal deviation (full s cale) at zero field. 3) the gain drift is the deviation from the gain no minal value (0h; 25c).
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 11 of 27 11. description of the MLX90292 functions/blocks 11.1. filtering the MLX90292 has a build in filter which takes care of the suppression of the signal noise. for the re ason of trade-off between signal dynamics the filtering is programmable. a fir filtering will be used for t his, which enables several cut-of frequencies and signal latencies. 11.2. self test the MLX90292 has some build in self-test features, which check the ram, rom, eeprom for its correct storage function. the MLX90292 has also a watch-dog . the rom and eeprom are checked during operation, this is a background process. the durati on of one check is 100ms. 11.3. por the por is needed for the reset of the analog part and digital part of the MLX90292.the por is supplie d by the internally regulated supply vdec. there is n o built-in delay on the por circuitry (such as debouncing), so the por is designed to put the ic i n reset whenever the regulated supply falls below a specified threshold. 11.4. charter of functional status range voltage (v) current functional status reverse voltage 0 ? -10 below 400 a normal ic c idle 0 ? 2,7 9.5 programming idd modulation c
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 12 of 27 12. eeprom 12.1. table of c ontent melexis p a r a meters para mete r number of bits des c ription mlxlock 8 melexis eeprom area lock b y te diseecrc 8 disable the eeprom crc c h ec k mlxc al i b mode 8 calibration mode selection mlxconfig 8 configuration settings for the d i gital thermooffs25 15 temperature sensor offset tri m ming thermoslopehot 16 temperature sensor thermal drift at hot tri mming thermo slo peco l d 16 temperature sensor thermal drift at cold trimmi ng mlxok 1 calibration successful fla g osctrim 5 oscillator frequency tri mming extr a i d dlo w 2 idd_low trimming for pas4 m od e an as a mp l es 2 analog sampling time tri mming a n a dur a tion 2 analog integration duration trim ming extraiddhighpsi 3 idd_high trimming in psi5 mode for low vdd itrim 4 asic current reference tri mming ipl a te 4 hall plate temperature independent biasing curr ent trimct a t 5 temperature dependent current source trimmin g extr a iddhighp a s 3 idd_high trimming in pas4 mode for low vdd tc1st 7 hall plate current biasing tri m ming pl a tepo l 1 polarity of the hall plate biasi ng tc2nd 5 hall plate current biasing tri m ming mlxoffset 16 temperature independent offset correction fa ctor offslopehot 16 thermal offset drift compensation at ho t offs l opec ol d 16 thermal offset drift compensation at col d sensslo pehot 16 thermal sensitivity drift compensation at ho t sensslopecold 16 thermal sensitivity drift compensation at col d mlxid0 16 melexis identification nu m b er mlxid1 16 melexis identification nu m b er mlxid2 16 melexis identification nu m b er customer p a r a meters para mete r number of bits des c ription pcustid0 16 primary customer identification number pcustid1 16 primary customer identification number pcustid2 16 primary customer identification number pcustl oc k 8 primary customer eeprom area lock b y te dieid 1 indication of die in the dual-die packag e pwmpo l 1 pwm polarity bi t
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 13 of 27 opm 3 operation mode determining output pro t ocol pco k 1 calibration successful fla g filte r 4 fir filter selec ti on pwmfreq 3 pwm freque ncy thermooffsetcorr 8 temperature sensor offset c o rrectio n thermohotcorr 16 temperature sensor drift at hot correcti on thermocoldcorr 16 temperature sensor drift at cold correc t ion m a nufcountv a lu e 8 number of manufacturing data packages at sta r tup ta 15 temperature pivot point between tc1hot and cold tcsenshot 16 thermal sensitivity drift compensation for t>t a tcsenscold 16 thermal sensitivity drift compensation for t MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 14 of 27 12.2. eeprom lock-mechanism in order to support longer supply chains due to seq uential assembly, the eeprom space has been divided in 3 areas. there is 1 byte for each of the 3 eeprom areas in the eeprom to control area locking: the melexis part: mlxlock the primary customer part: pcustlock the end customer part: ecustlock in case these lock bytes are 00h, the customer furt her down the supply chain can still modify the eeprom area of its supplier. in case the locks are written, the customer will only have access to his part of the eeprom. it is possible to only lock a part o f the eeprom by writing a non-zero value in the loc k byte. by writing 06h in eeprom, the first 6 address es of that eeprom area are write-protected, but the other addresses remain accessible. some unlock keys are available when using the progr amming equipment to overrule these eeprom lock bytes. 13. interfaces the MLX90292 supports multiple output protocols. at one side of the spectrum there are the pas4 and psi5-a digital protocols, which mainly differ from one and other through the value of the resistive pu ll-up resistor on the open-drain output. this difference has an impact on the specifications of both protoco ls when it comes to defining the range of the low and high currents: pas4 specifies a separate range for both the idd_lo w and idd_high psi5-a specifies a range on the difference between idd_low and idd_high, i.e. on idd_delta the other type of communication protocol is pwm. he re as well, a 2-wire variant exists which requires pull-up resistors in the range of the pas4/psi5-a p rotocols in order to accommodate a good noise margi n between both levels? then there is also the convent ional 3-wire pwm protocol that supports the typical higher impedant pull-up values such as 4k7 ohms and 10k ohms. the demodulation at receiver side is then no longer current based, but becomes vo ltage based. the user can select the desired communication protocol via eeprom, through the para meter opm. 13.1. pas4 / psi5-a interface the interface pas4 / psi5-a is a unidirectional asy nchronous digital current (two-wire) interface. it is used for point-to-point connections in automotive enviro nments. timing and repetition rate of the data transmission are controlled by the device. the user can program both 1khz and 2khz data rate. data transmission from the device to the ecu is done by current modulation on the power supply lines. when no data package is sent, i.e. the interface is in i dle mode, the interface shall draw no current addit ional to the supply current (idd_low) in order to prevent un necessary heating of the device. 13.1.1. protocol: manchester code data transmission is done in manchester code. this ensures that in the middle of each bit an edge is present, allowing the receiver ecu to synchro nize easily on the transmissions of the hall ic.
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 15 of 27 transmission is also quite insensitive to tolerance s of the oscillator frequency. a logic "1" is repre sented with a falling idd edge in the middle of the bit. a logic "0" is represented with a rising idd edge in the middle of the bit. see also figure 6 figure 6: manchester co de one frame consists of 13 bits. all frames start wit h two bits logic?=0?. the two following bits identi fy the frame number inside one data package. there are 4 f rames per package, and the datarate is specified as packages per unit of time. at the end of every fram e a parity bit is generated. odd/even parity is use d depending on the type of package (measurement data or manufacturing data), so the receiver has the ability to detect 1 error per frame. the encoder ge nerates the appropriate timing for the messages to be sent and controls the communication interface accor dingly. for an example see also figure 7. for a gap time between two frames see chapter 8. data transmission manchester code, parity bit frame s1 s l ?0 2 1 ? ?0 ?1 l d 2 1 ?1 ?1 d d d d 2 3 4 5 ?0 ?0 ?1 ?1 d d d p 6 7 8 1 ?1 ?1 ?0 ?0 i high i t bi t manchester code, parity bit s1 s2 l ?0 ?0 1 ? ? ? 1 l d 2 1 ?1 ?1 d d d 2 3 4 ?0 ?0 ?1 d d 5 6 ?1 ?1 d d p1 7 8 ?1 ?1 ?0 ? i high i t bi t figure 7: example data frames 13.1.2. data packages two types of data packages exist: manufacturing data package measurement data package
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 16 of 27 13.1.2.1. manufacturing data package the manufacturing package contains the values of th e eeprom registers. the values are transmitted in byte data format. the initial manufacturing package contains two bytes, the following packages contain three bytes of eeprom data. a manufacturing data pa ckage consists of 4 frames each having a label for identification. an odd parity bit is used for detec tion of transmission errors. the initial manufactur ing package includes the error and status information i n the second frame. the following packages only hav e an ok information bit followed by the package count er and three bytes containing the eeprom information. with the counter a failure of the pack age transmission order can be detected. with the he lp of the counter the data can be allocated to the eeprom registers. the package counter starts with the fir st package, giving the receiver the possibility to det ect if a certain package was lost, and thus the abi lity to reconstruct a proper eeprom table. the manuf_count_ value parameter in eeprom defines the number of data packages that will be transmitted at startup. startup in this case is defined as coming out of reset, i.e. out of por. in case the supply was b elow the startup voltage, but still above the por threshold, and goes back to the normal opera ting range, the measurement data packages wil l be resumed without sending manufacturing data packages first. initial m a n u facturing data p a c k age st2 st1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 1 1 0 1 ok c4 c3 c2 c1 c0 o 2 0 0 1 0 id x2 x1 x0 s3 s2 s1 s0 o 3 0 0 0 1 0 0 0 0 0 0 0 0 o 4 0 0 0 0 n7 n6 n5 n4 n3 n2 n1 n0 o 12 11 10 9 8 7 6 5 4 3 2 1 0 package 2 ? n -1 st2 st1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 1 1 0 1 ok c4 c3 c2 c1 c0 o 2 0 0 1 0 d 205b msb d 205b d 205b d 205b d 205b d 205b d 205b d 205b lsb o 3 0 0 0 1 d 205a msb d 205a d 205a d 205a d 205a d 205a d 205a d 205a lsb o 4 0 0 0 0 d 2059 msb d 2059 d 2059 d 2059 d 2059 d 2059 d 2059 d 2059 lsb o 12 11 10 9 8 7 6 5 4 3 2 1 0 last m a n u fac tu ring d a ta pack a ge st2 st1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 1 1 0 1 ok c4 c3 c2 c1 c0 o 2 0 0 1 0 crc msb crc crc crc crc crc crc crc o 3 0 0 0 1 crc crc crc crc crc crc crc crc lsb o 4 0 0 0 0 0 0 0 0 0 0 0 0 o 12 11 10 9 8 7 6 5 4 3 2 1 0 st2,s w t1 = = two consecutive start bits, always zero label for frame identification frame 1: label = <1 1> frame 2: label = <1 0> frame 3: label = <0 1> frame 4: label = <0 0> n = number of sent packages ? 2 (initial and last packa ges are always sent) ok = or-ing of the error bits except for the adc over-/u nderflows so the ok bit can become 0 if one of the following errors occurs:
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 17 of 27 - ram check fail: the ram march failed or the ram v s eeprom check failed (if enabled) - rom crc fail - eeprom crc fail - wd acknowledge error c = 5-bit package counter for package identification package 1: package counter = <00000> package 2 package counter = <00001> ?. package 32 package counter = <11111> p = odd parity over frame bits 1 ? 12 (= all other bits , including start bits) id = identification of the die position within the dual- die package id = 0: then ic is mounted closest to pin #1 id = 1: then ic is mounted farthest from pin #1 x = error detection x2 x1 x0 error interpretation 0 0 0 no error detected 0 0 1 adc overfl o w 0 1 0 adc u n derfl o w 0 1 1 pas4 / psi5 not ready 1 0 0 ram check 1 0 1 w a tchdog ac k n o w l e d ge (sof t w a re - w a t c h d o g ) 1 1 0 crc fail rom 1 1 1 crc fail ee p rom error detection reporting specification phase integrity test des c ription action on fa il startup cycle ram test write a fix data pattern in the ram and read back for consistency check reporting error only eeprom crc calculate the eeprom crc and compare with the stored crc reporting error only ramcmp compare the ram calibration data with the eeprom calibration data reporting error only background rom crc calculate the rom crc and compare with the stored crc reporting error only ramcmp compare the ram calibration data with the eeprom calibration data reporting error only eeprom crc calculate the eeprom crc and compare with the stored crc reporting error only note 1: the ram march test error will be reported/f lagged in the first frame only; then cleared and never reported/flagged again since the test is neve r run again (unless a por occurs). the rom crc, ramcmp and eeprom crc errors will be r eported/flagged once after their detection, then once any time they are re-detected. all errors are only reported, i.e. no other actions are taken (like resets, etc...)
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 18 of 27 note 2: the rom crc and eeprom crc errors ar e not necessarily flagged at every frame, depending on which bits (tests) are set in the mlxc onfig byte. crc = crc of sent manufacturing data packages (ibm 16 crc ) s = status s3 (ecok) s2 (pcok) s1 (mlxok) s0 status interp reta tion 0 0 0 0 no cal i brat i on estab l ish e d 0 0 0 1 mlx c a l i brati o n successful 0 0 1 0 t bd. 0 0 1 1 pcust calibr a tion successf u l 0 1 0 0 tbd. 0 1 0 1 tbd. 0 1 1 0 t bd. 0 1 1 1 ecust calibr a tion successf u l 1 0 0 0 free for end u ser. 1 0 0 1 free for end user. 1 0 1 0 free for end user. 1 0 1 1 free for end u ser. 1 1 0 0 free for end u ser. 1 1 0 1 free for end u ser. 1 1 1 0 free for end u ser. 1 1 1 1 free for end user. dxxxx = data of corresponding eeprom address. example for odd parity : frame s2 s1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 1 1 0 1 1 0 0 0 1 1 1 2 0 0 1 0 0 1 1 0 0 0 1 1 0 3 0 0 0 1 0 1 1 0 0 0 1 1 0 4 0 0 0 0 0 1 1 0 0 0 1 1 1 12 11 10 9 8 7 6 5 4 3 2 1 0 13.1.2.2. measurement data package one data package contains the 12 bit signal of one magnetic flux density measurement and additional status information. a data package is composed of 4 frames each having a label for identification. a p arity bit is used for detection of transmission errors. t he order of the frame transmission is determined by the label: label <0 0> is sent first, label <0 1> is se nt secondly etc ? frame st2 st1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 0 0 0 1 ok c4 c3 c2 c1 c0 e 2 0 0 0 1 t7 t6 t5 t4 t3 t2 t1 t0 e 3 0 0 1 0 id x2 x1 x0 m11 m10 m9 m8 e 4 0 0 1 1 m7 m6 m5 m4 m3 m2 m1 m0 e 12 11 10 9 8 7 6 5 4 3 2 1 0 s2,s w 1 = = two consecutive start bits, always zero label for frame identification frame 1: label = <0 0> frame 2: label = <0 1> frame 3: label = <1 0> frame 4: label = <1 1>
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 19 of 27 ok = or-ing of the error bits except for the adc o ver-/underflows 1 = sensor ok 0 = sensor detected failure c = 5-bit package counter for package identificatio n package 1: package counter = <00000> package 2 package counter = <00001> ?. package 32 package counter = <11111> t = ic temperature, internal temperature measuremen t in uint8 format (msb first) temperature range = -50c to +155c temperature resolution = 0,8c per lsb temperature clamping at -50c and +155 c id = identification of the die position within the dual-die package id = 0: then ic is mounted closest to pin #1 id = 1: then ic is mounted farthest from pin #1 x = error detection x2 x1 x0 error interpretation 0 0 0 no error detected 0 0 1 adc overfl o w 0 1 0 adc u n derfl o w 0 1 1 pas4 / psi5 not ready 1 0 0 ram check 1 0 1 w a tchdog ac k n o w l e d ge (sof t w a re - w a t c h d o g ) 1 1 0 crc fail rom 1 1 1 crc fail ee p rom m = magnetic flux density, 12 bit resolution p = even parity over frame bits 1 ? 12 (= all other bits, including start bits) example for even parity: frame s2 s1 w2 w1 d7 d6 d5 d4 d3 d2 d1 d0 p0 1 0 0 1 1 0 1 1 0 0 0 1 1 0 2 0 0 1 0 0 1 1 0 0 0 1 1 1 3 0 0 0 1 0 1 1 0 0 0 1 1 1 4 0 0 0 0 0 1 1 0 0 0 1 1 0 12 11 10 9 8 7 6 5 4 3 2 1 0 13.1.3. data rang es magnetic flux density: data range 12bit 2?s complement decimal v a lu e hex a decimal 2047 7ffh 1 1h 0 0h -1 fffh -2048 800h
rev. 2 temper temperature in -50 0 25 155 13.1.4. continuous transmission after the reset sequence, the transm automatically starts with the continuo u ecu. continuous operation can be interrupt parameters into the eeprom. note succeeding power-on cycle. 13.1.5. transmission after reset after every reset ? conduct ed through power 13.2. programming in pwm mode the full 12-bit digital output span of pas4/psi5 cycle range of 3% to 97% in software. pas4/psi5-a mode, and then change operating modes. pwm mode thus sensitivity drift compensations that al so pwm (dc %) 100% 98% 97% high programmable low clamp 3% 2% low diagn figure MLX90292 smd programmable linear hall pwm / pas4 page 20 of 27 temper ature: data range 8bit unsign e d in c decimal v a lu e hex a decimal 0 00h 62 3eh 94 5eh 255 ffh transmission (normal opera t ion) transm ission of the eeprom content will be sent and u s operation sequence where the measurement d ata interrupt ed at any time by a programming sequence in order eeprom. note that the new content of the eeprom is utilized reset (power-on) ed through power -on ? the device transmits the eeprom c ontent mode pas4/psi5 -a (-2048lsb .. 2047lsb) will be mapped software. it is therefore possible to fully program the asic then change the mode to pwm, knowing the mapping rel ation also has all the slope correction, offset drift comp so exist in the other modes. dead zone diagnostic band (functional errors and/or temperature errors ) programmable high cla m programmable sensitivity programmable offset diagn ostic band (functional errors and/or temperature errors) dead zone 0 figure 8: programming in pwm mode MLX90292 hall sensor ic pas4 / psi5-a mar/12 and then the device ata are sent to the in order to write new utilized only after a ontent to the ecu. mapped to a pwm duty asic while using ation between the comp ensations and m p magnetic field (gauss)
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 21 of 27 the clamping for pwm differs nothing from the clamp ing of pas4/psi5-a. it takes place on the same digital field data (=pas4/psi5-a output data). the clamping settings can be altered in the end custome r area of eeprom. there are 2 parameters available: c lamp_low[15:0] and clamp_high[15:0]. the accuracy of the digital field is fixed at 12 bits ( -2048 .. 2047), so the clamping can only have the s ame resolution or less. setting your high clamp level at 2000d (=07d0h) wil l not generate a pwm duty cycle of 50% + (2000/2047)*50% during high clamping. high clamping for those settings will be at 50% + (2000/2047)*47% because the digital field is mapped to a 94% span instead of the full 100%. the same deduction can be made for low clamping. 50% duty cy cle always corresponds to digital field 0. the digi tal field 0 however, can correspond to a certain residu al magnetic field depending of the offset value tha t has been calibrated. pwm duty cycle (%) clamp level (dec ) internal value (hex ) low clamp minimum 3 -2048d .. -32768 f800h .. 8000h example low cl amp 10 -1743d f931h example high clamp 90 1742d 06ceh high clamp maximum 97 2047d .. 32767 07ffh .. 7fffh clamping settings e x plai ned in theory there is no need for clamping, since the digital field is already automatically clamped at 2 047 and -2048. for pwm it was made sure that the diagno stic levels were outside this area. however the customer might want to implement a larger dead zone in between the diagnostic levels and the signal sp an. this can be achieved with the clamping settings, at the price of reduced signal span.
rev. 2 14. recommended application 14.1. pas4, psi5-a and 2-wi re r1 c1 c2 9 figure 9: ap plication part c1 supply c apacitor, c2 regulated s u r1 pull up re s i s pull up r e sis MLX90292 smd programmable linear hall pwm / pas4 page 22 of 27 vss_2 vdec_2 out_2 vdd_2 out_1 vdd_1 vdec_1 vss_1 application diagrams re pwm vdd_die2 gnd_die2 8 1 c2 c1 9 16 vdd_die1 gnd_die1 plication diagram pas4, psi5-a and 2-wire pwm description value unit apacitor, emi, e s d 100 nf u pply decoupling, emi, esd 22 nf s t or pas4 200 sis t or psi5 or 2 - wire p wm 920 MLX90292 hall sensor ic pas4 / psi5-a mar/12 r1 unit nf nf
rev. 2 14.2. 3-wire pwm part c1 supply c apacitor, c2 regulated s u c3 output cap a r1 pull up re sis MLX90292 smd programmable linear hall pwm / pas4 page 23 of 27 figure 10: diagnostic hig h description value unit apacitor, emi, e s d 100 nf u pply decoupling, emi, esd 22 nf a citor, emi, esd 10 nf sis tor pwm at ecu side 4.7 k MLX90292 hall sensor ic pas4 / psi5-a mar/12 unit nf nf nf k
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 24 of 27 15. standard information regarding manufacturabilit y of melexis products with different soldering processes our products are classified and qualified regarding sold ering technology, solderability and moisture sensitivity level according to following test methods: reflow soldering smd?s (s urface m ount d evices) ? ipc/jedec j-std-020 moisture/reflow sensitivity classification for nonherme tic 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 (s urface m ount d evices) and thd?s (t hrough h ole d evices) ? en60749-20 resistance of plastic- encapsulated smd?s to combined effe ct of moisture and soldering heat ? eia/jedec jesd22-b106 and en60749-15 resistance to soldering temperature for through-hole mounte d devices iron soldering thd?s (t hrough h ole d evices) ? en60749-15 resistance to soldering temperature for through-hole mounte d devices solderability smd?s (s urface m ount d evices) and thd?s (t hrough h ole d evices) ? eia/jedec jesd22-b102 and en60749-21 solderability for all soldering technologies deviating from above me ntioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) addi tional classification and qualification tests have to be agreed upon with melexis. the application of wave soldering for smd?s is allowed on ly after consulting melexis regarding assurance of adhesive strength between device and board. melexis is contributing to global environmental conserva tion 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 substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx 16. esd precautions electronic semiconductor products are sensitive to electro static discharge (esd). always obser ve electro static discharge control procedures wheneve r handling semiconductor products. the target esd withstand is 2 kv for all the comb inations specified by aec-q100-002 (human body model).
rev. 2 17. package information 17.1. tssop16 ? package dimensions 0.65 0.04 dia 1.0 ref 1.0 ref 1.0 ref 4.90 5.10* 0.19 0.30*** notes: all dimensions are in millimeters (anlges in d * dimension does not include mold flash , pr ot ** dimension does not include interleads fla s *** dimension does not include dambar pr ot maximum material condition . dambar cann o ref: reference dimensions as stated in pa ck figure MLX90292 smd programmable linear hall pwm / pas4 page 25 of 27 information dimensions 12 o ref 0.20 0.04 4.30 4.50** 6.4 0.2 12 o ref 0.09 m in 0.09 m i 0.50 0.75 1.0 0.2 0.85 0.95 1.1 max 0.09 0.20 0.05 0.15 d egrees). ot rusions or gate burrs(shall not exceed 0.15 per sid e). s h or protrusion (shall not exceed 0.25 per side). ot rusion . allowable dambar protrusion shall be 0.08 mm total in excess o o t be located on the lower radius of the foot. ck aging supplier pod , based on jedec. figure 11: tssop16 package dimens ion MLX90292 hall sensor ic pas4 / psi5-a mar/12 o in i n 0 o 8 o f the dimension at
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 26 of 27 17.2. tssop16 ? pinout and sensitive spot positioning 1 16 vss_1 vdec_1 n/c out_1 test ana_ 2 must1_2 must0_2 vdd_2 vdec_2 die 1 die 2 vdd_1 must0_1 must1_1 test ana_ 1 n/c out_2 vss_2 8 9 figure 12: pinnout 1 16 vss_1 vdec_1 n/c out_1 test ana_ 2 must1_2 must0_2 vdd_2 vdec_2 die 1 die 2 vdd_1 must0_1 must1_1 test ana_ 1 n/c out_2 vss_2 8 9 <0.57mm figure 13: sensitive spot positioning
MLX90292 smd programmable linear hall sensor ic pwm / pas4 / psi5-a mar/12 rev. 2 page 27 of 27 18. disclaimer devices sold by melexis are covered by the warranty and patent indemnification provisions appearing in its term of sale. melexis makes no war ranty, express, statutory, implied, or by description regarding the information set forth her ein 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 de signing 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 tempe rature range, unusual environmental requirements, or high reliability applications, suc h as military, medical life-support or life-sustain ing 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 a ny damages, including but not limited to personal injury, property damage, loss of profits, loss of u se, interrupt of business or indirect, special incidental or consequential damages, of any kind, i n 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 direc t: europe, africa, asia: america: phone: +32 1367 0495 phone: +1 248 306 5400 e-mail: sales_europe@melexis.com e-mail: sales_usa @melexis.com iso/ts 16949 and iso14001 certified

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