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mlx91209ca current sensor ic in va package 3901091209 01 page 1 of 15 mlx91209 rev 0 10 march 2016 features and benefits ? programmable high speed current sensor ? programmable linear transfer characteristic ? selectable analog ratiometric output ? measurement range from 15 to 450mt ? single die va package rohs compliant ? wideband: dc to 200khz ? lead free component, suitable for lead free soldering profile 260c (target), msl 1 ? short response time application examples ? inverter applications in hev and ev ? bldc motor current monitoring ? ac/dc converters ? over current detection circuit ordering information product code temperature code package code option code packing form code mlx91209 l va c aa - 000 bu mlx91209 l va c aa - 000 c r caption temperature code: l = ( - 40c to 150c) package code: va = sip 4l (single in - line package) option code: c aa = sensitivity range 5 - 150mv/mt (typical: 50mv/mt) packing form: bu = bulk / c r = radial tape ordering e xample: mlx91209lva - c aa - 000 - c r functional diagram figure 1: block diagram
mlx91209ca current sensor ic in va package 3901091209 01 page 2 of 15 mlx91209 rev 0 10 march 2016 general description the mlx 91209 is a monolithic programmable hall sensor ic featuring the planar hall technology , which is sensitive to the flux density applied orthogonally to the ic surface. the sensor provides an output signal proportional to the applied magnetic flux density and is preferably suit ed for current measuremen t . the transfer characteristic of the mlx 91209 is programmable (offset, gain ). the linear analog output is designed for application s where a very fast response is required , such as inverter applications. in a typical application, the sensor is used in combination with a ring shaped soft ferromagnetic core. the hall ic is placed in a small air gap and the current conductor is passed through the inner part of the ferromagnetic ring. the ring concentrates and amplifies the magnetic fl ux on the hall sensor ic, which generates an output voltage proportional to the current flowing in the conductor. glossary of terms adc analog to digital converter dac digital to analog converter dnl differential non linearity inl integral non linearity lsb least significant bit msb most significant bit nc not connected pt c programming through connector tc temperature coefficient in ppm/c tesla units for the magnetic flux density , 1 mt = 10 gauss absolute maximum r atings parameter symbol value units positive supply voltage (overvoltage) vdd +10 v reverse supply voltage protection - 0.3 v positive output voltage (1) + 10 v output current iout 70 ma reverse output voltage - 0.3 v reverse output current - 50 ma package thermal resistance rth 105 c/w operating ambient temperature range t a - 40 to +1 50 c storage temperature range t s - 55 to +165 c magnetic flux density infinite t table 1 : absolute maximum ratings exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute maximum rated conditions for extended periods may affect device reliability. (1) valid for supply=10v or supply - pin floating .
mlx91209ca current sensor ic in va package 3901091209 01 page 3 of 15 mlx91209 rev 0 10 march 2016 table of cont ents features and benefits ................................ ................................ ............................ 1 application examples ................................ ................................ ............................ 1 ordering information ................................ ................................ .............................. 1 functional diagram ................................ ................................ ................................ 1 general description ................................ ................................ ............................... 2 glossary of terms ................................ ................................ ................................ .. 2 absolute maximum ratings ................................ ................................ ................... 2 table of contents ................................ ................................ ................................ ... 3 pin definitions and descriptions ................................ ................................ ............ 4 general electrical specifications ................................ ................................ .......... 4 magnetic specification ................................ ................................ ........................... 5 analog output specification ................................ ................................ ................... 6 programmable items ................................ ................................ .............................. 8 self diagnostic ................................ ................................ ................................ ....... 9 recommended application diagrams ................................ ................................ .. 10 standard information regarding manufacturability of melexis products with different soldering processes ................................ ................................ .............. 11 e sd precautions ................................ ................................ ................................ ... 13 faq ................................ ................................ ................................ ....................... 13 package information ................................ ................................ ............................ 14 disclaimer ................................ ................................ ................................ ............ 15 contact information ................................ ................................ ............................. 15
mlx91209ca current sensor ic in va package 3901091209 01 page 4 of 15 mlx91209 rev 0 10 march 2016 p in d efinitions and d escriptions pin # name type function 1 vdd supply supply voltage 2 out analog current sensor o utput 3 test/must digital test and factory c alibration 4 vss ground supply voltage table 2 : pin definition s and description s unused pins should be connected to ground for optimal emc results . general electrical specifications operating parameters: t a = - 40c to 125c, vdd = 4.5v to 5.5 v, iout = - 2ma to 2 ma, recommended a pplication diagram , u nless otherwise specified. m entioned component values can have a 20% tolerance . parameter symbol test conditions min typ max units nominal supply voltage vdd 4.5 5 5.5 v supply current idd no output load, application mode, t a = - 40c to 150c 7 12 14 ma dc load current i out r load in range [6k, 100k] max inside this range, output voltage reaches 3 and 97%vdd - 2 2 ma output resistance vout = 50% vdd, r l = 10k ? load capacitive load for the stability of the output amplifier 10 nf output resistive load (pull - up and pull - down resistor) r load output resistive load for high linearity 6 k ? short output shorted to vdd 35 180 ma output shorted to vss 35 180 ma output leakage current i leak high impedance mode (1) t a = 150c 0.5 1.5 20 ua output voltage swing (linear range) v out_p u pull up 10 k? out_p d pull down 10 k? (1) v out_hiz_pu pull - up r l 25 k?, t125 out_hiz_pd pull - down r l 25 k?, t125 (2) v dd_uvd low to high voltage 3.15 3.3 3.45 v v dd_uvh hysteresis 0.25 0.3 0.4 v ratiometry fault detection v ratio_d low to high voltage 4 4.4 v v ratio_h hysteresis 0.05 0.5 v over - voltage detection (2) v dd_ovd2 low to high voltage 6.7 7.6 v v dd_ovh2 hysteresis 0.05 0.7 v table 3 : general electrical parameter s ( 1) refer to section self diagnostic , table 8 . (2) according to the following diagram : vout detected voltage hysteresis vdd
mlx91209ca current sensor ic in va package 3901091209 01 page 5 of 15 mlx91209 rev 0 10 march 2016 magnetic specificati on operating parameters t a = - 40c to 125c, vdd = 4.5v to 5.5 v, unless otherwise specified. parameter symbol test conditions / comments min typ max units magnetic field range b ? 15 ? 45 ? 450 mt linearity error nl vdd in range [4.5v, 5.5v] vout in [10%v dd , 90%v dd ] - 0.4 +0.4 %fs programmable sensitivity s 5 50 150 mv/mt sensitivity programming resolution sres 0.1 % table 4 : magnetic specification sensor active measurement direction figure 1 : magnetic field direction
mlx91209ca current sensor ic in va package 3901091209 01 page 6 of 15 mlx91209 rev 0 10 march 2016 analog output specification timing specification operating parameters t a = - 40c to 125c, vdd = 4.5v to 5.5 v (unless otherwise specified) . parameter symbol test conditions / comments min typ max units refresh rate trr 0.8 1 2 s step response time tresp delay between the input signal reaching 90% and the output signal reaching 90%, ( 2 v step at the output , input rise time = 1s) - noise filter off - noise filter on 2 5 3 6 s s bandwidth bw - noise filter off - noise filter on 200 120 250 150 300 180 khz khz power on d elay t pod vout =100% of fs pull - down re sistor 100kohm during the power - on delay, output will remain within the 10% fault band at all time. 5 ms ratiometry cut - off frequency fratio 250 hz table 5 : timing specification for high speed analog output figure 2 : response time definition 1 s i n , v o u t t i m e 9 0 % 1 0 0 % r e s p o n s e t i m e
mlx91209ca current sensor ic in va package 3901091209 01 page 7 of 15 mlx91209 rev 0 10 march 2016 accuracy specification operating parameters t a = - 40c to 125c, vdd = 4.5v to 5.5 v (unless otherwise specified) . parameter symbol test conditions min typ max units thermal offset drift (1) t voq thermal o ffset drift referred to 25c s=50 mv/mt (@ vdd=5v) tc = 0 ? ? t voqres 0.00075 %vdd /c thermal sensitivity drift tc - 1.5 0 +1 .5 % of s thermal sensitivity drift resolution tcres 40 ppm/c rms output noise n rms s= 50mv/mt, bw= 0 - 250khz, trr = 1usec - noise filter off - noise filter on 0.2 0.12 %vdd %vdd ratiometry error offset voq voq = 50%vdd table 6 : accuracy specification for high speed analog output (1) thermal offset drift specification is only valid when ratiometry is enabled. remarks to the achievable accuracy the achievable target accuracy depends on en d - of - line calibration in the application. resolution for offset calibration is better than 0.1%vdd. trimming capability is higher than measurement accuracy. end - of - line calibration can increase overall system accuracy .
mlx91209ca current sensor ic in va package 3901091209 01 page 8 of 15 mlx91209 rev 0 10 march 2016 programmable items parameter table parameter bits comment voq[11:0] 12 quiescent output level (0 gauss) adjustment rg[2:0] 3 rough gain adjustment fg[9:0] 10 fine gain adjustment enratio 1 ratiometry enablement tc1[7:0] 8 f irst order temperature compensation of the magnetic sensitivity tc2hot[4:0] 5 extra temperature compensation of the magnetic sensitivity at high temperature tc2cold[4:0] 5 extra temperature compensation of the magnetic sensitivity at low temperature offdr2c[5:0] 6 adjustment of the offset drift at low temperature after the vga offdr2h[5:0] 6 adjustment of the offset drift at high temperature after the vga noisefilt 1 noise filter enablement crc[15:0] 16 16 - bit crc for the checksum calculation of the configuration register. id[47:0] 48 customer identification code table 7 : customer programmable items sensitivity programming (rg, fg) the sensitivity can be programmed from 5 to 150 mv/mt, with the roughgain (3 bits) and finegain (10 bits) parameters. offset / o utput quiescent voltage programming ( voq ) the offset is programmable with 12 bits in 1.5 mv steps over the full output range. this corresponds to a calibration resolution of 0.03 %vdd. (the typical step would be 5v/4096 = 1.22 mv, the actual step size can differ from the nominal value because of internal gain tolerance. the maximum step size of 1.5 mv is guara nteed) . note: for optimal pe rformance over temperature, voq should be programmed in the range 2 to 3v. output ratiometry (enratio) the ratiometry of the output versus the supply can be disabled by setting this bit to 0. note: f or optimal performance over temperature, ratiometry should always be enabled (enratio=1 ) . sensitivity temperature drift programming (tc1, tc2cold, tc2hot) first order sensitivity temperature drift can be trimmed from - 2000 to 2000ppm/k with tc1. the progra mming resolution is 40ppm/k. second order sensitivity temperature drift can be trimmed from tc2cold and tc2hot. the programming r esolution is 2 ppm/k 2 for tc2cold and 0.6ppm/k 2 for tc2hot.the second order can also be seen as third order correction since col d and hot sides are independently adjusted. note: for optimal performance over temperature, the first order sensitivity drift compensation (tc1st) should not exceed 500ppm/k.
mlx91209ca current sensor ic in va package 3901091209 01 page 9 of 15 mlx91209 rev 0 10 march 2016 offset temperature drift programming (offdr2c, offdr2h) offset temperature dri ft caused by the output amplifier can be compensated with these two parameters. this first order correction is done independently for temperatures over and below 25c. note: t wo additional parameters (offdr1c, offdr1h) are calibrated by melexis to compens ate for the offset temperature drift caused by the hall element (before the variable gain amplifier). these parameters should not be adjusted on customer - side. noise filter (noisefilt) setting this bit to 1 enables the noise filter, reducing noise and incr easing response time. identification code (id) 48 bits programmable identification code. self diagnostic the mlx91209 provides self diagnostic features to detect internal memory errors and over - / under - voltage conditions. the se features increase the robustness of the ic functionality , as they prevent erroneous output signal in case of internal or external failure modes. error action effect on output remarks calibration data crc error (at power up and in normal working mode) fault mode high impedance mode pull down resistive load => diag low pull up resistive load => diag high power on d elay high impedance mode max 5ms in high impedance followed by settling undervoltage mode ic reset high impedance mode 300mv hysteresis (typical) overvoltage d etection ic reset high impedance mode 100mv hysteresis (typical) table 8 : self diagnostic
mlx91209ca current sensor ic in va package 3901091209 01 page 10 of 15 mlx91209 rev 0 10 march 2016 recommended application diagrams resistor and capacitor values part description value unit c1 supply capacitor, emi, esd 100 nf c2 decoupling, emi, esd 2 - 10 (1) nf r1 pull up or pull down resistor 6 - 100 k table 10: resistor and capacitor values (1) 10nf is recommended for better emc and esd performance. pull down resistor for diagnostic low figure 3 : diagnostic low pull up resistor for diagnostic high figure 4 : diagnostic high 1 2 3 4 s u p p l y v o l t a g e a n a l o g o u t p u t g n d v s s t e s t / m u s t o u t v d d m l x 9 1 2 0 9 c 1 c 2 r 1 1 2 3 4 s u p p l y v o l t a g e a n a l o g o u t p u t g n d v s s t e s t / m u s t o u t v d d m l x 9 1 2 0 9 c 1 c 2 r 1
mlx91209ca current sensor ic in va package 3901091209 01 page 11 of 15 mlx91209 rev 0 10 march 2016 typical performance figure 5 : thermal sensitivity drift. figure 6 : thermal offset drift figure 7 : non - linearity over temperature figure 8 : phase shift over temperature . figure 9 : response time with noise filter off. figure 10 : response time with noise filter on. shunt mlx91209 shunt mlx91209 2 s 6 s
mlx91209ca current sensor ic in va package 3901091209 01 page 12 of 15 mlx91209 rev 0 10 march 2016 standard information regarding manufacturability of melexis products with different soldering processe s our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: reflow soldering smds ( s urface m ount d evices) ? ipc/jedec j - std - 020 moisture/reflow sensitivity cla ssification 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 tab le 2) wave soldering smds ( s urface m ount d evices) and thds ( t hrough h ole d evices) ? en60749 - 20 resistance of plastic - encapsulated smds to combined effect of moisture and soldering heat ? eia/jedec jesd22 - b106 and en60749 - 15 resistance to soldering temperature for through - hole mounted devices iron soldering thds ( t hrough h ole d evices) ? en60749 - 15 resistance to soldering temperature for through - hole mounted devices solder ability smds ( s urface m ount d evices) and thds ( t hrough h ole d evices) ? eia/jedec jesd22 - b102 and en60749 - 21 solderability for all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperatur e gradient, temperature profile, etc . ) additional classification and qualification tests have to be agreed upon with melexis. the application of wave soldering for smds is allowed only after consulting melexis regarding assurance of adhesive strength between device and board. melexis recommends reviewing on our web site the general g uidelines soldering recommendation ( http://www.melexis.com/quality_soldering.aspx ) as well as trim&form recommendations (http://www.melexis.com/assets/trim - and - form - recommendations - 5565.aspx). melexis is co ntributing to global environmental conservation by promoting lead free solutions. for more information on qualifications of rohs compliant products (rohs = european directive on the restriction of the use of certain hazardous substances) please visit the q uality page on our website: http://www.melexis.com/quality.aspx
mlx91209ca current sensor ic in va package 3901091209 01 page 13 of 15 mlx91209 rev 0 10 march 2016 e sd precautions electronic semiconductor products are sensitive to electro static discharge (esd). always observe electro static discharge control procedures whenever handling semiconductor products. faq for which current range can the sensor be used? the magnetic field [mt] seen by the sensor for a given current [a] depends on the design of the enclosing ferromagnetic core (air gap size, mat erial type, etc.). therefore, the current range is not limited by the sensor itself, but rather by the magnetic properties of the core (saturation, hysteresis, etc.). what is the default sensitivity of the sensor? the sensor is factory calibrated for a t ypical sensitivity of 50mv/mt. how can i program the sensor ? the sensor uses a 3 wires communication protocol (vdd, vss and out) and can be programmed using melexis universal programmer (ptc - 04) , with the dedicated daughter board ptc04 - db - hall05. for more information, please visit http://www.melexis.com/hardware - and - software - tools/programming - tools/ptc - 04 - 568.aspx .
mlx91209ca current sensor ic in va package 3901091209 01 page 14 of 15 mlx91209 rev 0 10 march 2016 package information va / sip 4l (sin gle in - line package) figure 11 : va / sip 4l (single in - line package) dimensions
mlx91209ca current sensor ic in va package 3901091209 01 page 15 of 15 mlx91209 rev 0 10 march 2016 disclaimer devices sold by melexis are covered by the warranty and patent indemnification provisions appearing in its term of sale. melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. melexis reserves the right to change specifications and prices at any time and without notice. therefore, prior to designing this product into a system, it is necessary to check with melexis for current information. this product is intended for use in normal commercial applications. applications requiring extended temperatur e range, unusual environmental requirements, or high reliability applications, such as military, medical life - support or life - sustaining equipment are specifically not recommended without additional processing by melexis for each application. the informati on 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, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to recipient or any third party shall arise or flow out of melexis rendering of technical or other services. ? 20 12 melexis nv. all rights reserved. contact information for the latest version of this document, go to our website at www.melexis.com or for additional information contact mel exis direct: europe, africa, asia: america : phone: +32 1367 0495 phone: +1 248 306 5400 e - mail: sales_europe@melexis.com e - mail: sales_usa@melexis.com iso/ts 16949 and iso14001 certified

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