View MLX91205KDCAAH-003RE_8806138.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 1 of 1 4 data s heet rev 01 2 june/13 features and benefits ? tria x is ? t echnology ? very high sensitivity due to integ rated magnetic concentrator ( imc - hall? ) ? sensitive to a magnetic field parallel to the chip surface ? linear output voltage proportional to a magnetic field ? wide band: dc to 100khz ? short response time 8 s ? l ow offset and offset drift ? very low noise ? isolated from current conductor ? surface mount soic 8 package applications examples ? ac and/or dc contact - less current measurement ? wideb and magnetic field measurement ? battery management ? ac/ dc converters ? motor control ? solar power converter (mppt) ? power management ordering information product code temperature code package code ordering option code packing form code sensitivity (typ.) mlx9120 5 k ( - 40c to 150c) dc (soic) aah - 00 3 tu (tube) / re (reel) 10 0 mv/mt mlx9120 5 k ( - 40c to 150c) dc (soic) aal - 00 3 2 80 mv/mt ordering example: mlx91205kdc - aah - 003 - tu 1 functional diagram 2 general description the new imc - hall ? current sensor mlx91205 is a single axis integrated magnetic sensor based on the hall effect . it produces an analog linear, ratio - metric output voltage proportional to the applied magnetic field parallel with the chip surface. the circuit is fab ricated using a standard cmos pro cess. the addition al ferromagnetic layer ( imc - hall? = integrated magnetic concentrator , triaxis? technology ) that is added in a simple post - processing step, amplifies the magnetic field and concentrates it on the hall elements. therefore, the circuit features very high magnetic sensitivity, low offset, and low noise. the mlx91205 is ideall y suited for current sensing in automotive and industrial environments. there are 2 different product versions available. the 91205 hb featur es a linear magnetic field range of 25mt and the 91205lb features a linear range of 10mt. hb refers to a high magnetic field, whereas lb refers to a low magnetic field range. c o _ o u t b i a s i n g u n i t o f f s e t c a n c e l l a t i o n m o d u l a t o r a m p l i f i e r d e m o d u l a t o r b u f f e r c a l i b r a t i o n u n i t p v p c p d a _ o u t g n d v d d n c t r i a ? ?
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 2 of 1 4 data s heet rev 01 2 june/13 table of contents 1 functional diagram ................................ ................................ ................................ ......... 1 2 general description ................................ ................................ ................................ ........ 1 3 glossary of terms ................................ ................................ ................................ .......... 3 4 maximum ratings ................................ ................................ ................................ ............ 3 5 pin definition s and descriptions ................................ ................................ .................... 3 6 mlx91205 general electrical specifications ................................ ................................ 4 7 mlx91205 sensor specific specifications ................................ ................................ ... 4 7.1 91205 lb: low field version 10mt (marking xxl) ................................ ................................ ................................ .......................... 4 8 ................................ ................................ ................................ ................................ ........... 4 8.1 91205hb: high field version 25mt (marking xxh) ................................ ................................ ................................ ......................... 5 9 detailed general description ................................ ................................ ......................... 6 10 unique features ................................ ................................ ................................ ............ 6 11 performance graphs ................................ ................................ ................................ .... 7 11.1 offset over temperature ................................ ................................ ................................ ................................ .............................. 7 11.2 sensitivity over temperature ................................ ................................ ................................ ................................ ........................ 7 12 applications information ................................ ................................ .............................. 8 12.1 low current measurement up to 2 a ................................ ................................ ................................ ................................ ........... 8 12.2 medium current up to 30 a ................................ ................................ ................................ ................................ ......................... 8 12.3 high current measurement up to 600 a ................................ ................................ ................................ ................................ ...... 8 12.4 customer calibration with mcu ................................ ................................ ................................ ................................ .................... 9 13 application diagram ................................ ................................ ................................ ... 10 13.1 direct single ended output ................................ ................................ ................................ ................................ ........................ 10 13.2 direct differential output ................................ ................................ ................................ ................................ ............................ 10 14 standard information regarding manufacturability of melexis products with different soldering processes ................................ ................................ ......................... 11 15 e sd precautions ................................ ................................ ................................ ......... 12 16 package information ................................ ................................ ................................ ... 12 16.1 package dimensions ................................ ................................ ................................ ................................ ................................ .. 12 16.2 pinout and marking ................................ ................................ ................................ ................................ ................................ .... 13 16.3 hall plate positioning ................................ ................................ ................................ ................................ ................................ .. 13 17 disclaimer ................................ ................................ ................................ .................... 14
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 3 of 1 4 data s heet rev 01 2 june/13 3 glossary of terms gauss (g), tesla (t): magnetic flux density units where 1 mt = 10 g. adc: analog - to - digital converter tc: sensitivity temperature coefficient (in ppm/deg.c.) . tria ? is tm : the tria ? is? technology refers to the melexis hall technology that is based on both planar and vertical (bulk & imc) hall plates. this technology allows the realization of hall effect sensors able to sense the flux density along the 3 axis (i.e. x, y & z) as well as position sensors able to sense the magnetic vector over 360 degrees. imc: integrated magneto concentrator. it concentrates the magnetic flux lines and bends t hem at the extremity under the planar hall plate . furthermore, it can provide some magnetic gain factor. 4 maximum ratings parame ter units supply voltage, v dd (overvoltage) 6 v supply voltage, v dd (operating) 5.5 v reverse voltage protection 0 v operating temperature range, t a - 40 to + 125 c storage temperature range, t s - 40 to +1 5 0 c table 1 : a bsolute maximum ratings exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute maximum rated conditions for extended periods may affect device reliability. 5 pin definitions and d escriptions pin number pin name function pin 1 1 a_out analog output 2 vdd supply 3 nc 4 pv f actory p rogramming pin (default vdd) 5 gnd supply common 6 pd f actory p rogramming pin (default gnd) 7 pc f actory p rogramming pin (default vdd) 8 co_out common output (vdd/2) table 2 : p in description mlx91205 magnetic sensitive direction b
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 4 of 1 4 data s heet rev 01 2 june/13 6 mlx9120 5 general electrical specifications dc operating parameters t a = - 40 o c to + 125 o c, v dd = 5 .000 v (unless otherwise specified) parame ter symbol test conditions min typ max units nominal supply voltage v dd 4.5 5 5.5 v supply current i dd iout=0ma 11 16 ma common output co_ o ut referring to vdd/2 - 50 vdd/2 + 50 mv output current iout - 1 1 ma output load resistance rload 5 k output load capacitance cload 1000 pf start - up cycle t s 150 s table 3 : electrica l specifications 7 mlx 91205 sensor specific specifications 7.1 91205 lb: low field version 10mt (marking xx l ) dc operating parameters t a = - 40 o c to 125 o c, v dd = 5.000 v , differential output (i.e. vout = a_out - co _out ), unloaded. u nless otherwise specified . parameter. symbol test conditions min typ max units magnetic sensitivity s ( 1) t=25c , b = b l 275 280 285 v/t magnetic sensitivity over temp. s t ( 1) t= - 40, 25, 125c; see also below 10.2 270 280 290 v/t thermal sensitivity drift tc t= 25c <+/ - 200 ppm/c offset voltage voff t= 25c - 20 0 20 mv offset voltage over temperature voff t t= - 40, 25, 125c; see also below 11.1 - 50 0 50 mv linear magnetic field range b l - 7.5 7.5 mv fullscale magnetic field range b fs 10 mt non linearity nl bb fs 5 8 95 %vdd response time tr 8 s bandwidth ( - 3 db) dc to bw r load >1m ; c load <10pf 100 khz spectral noise density bnoise f=10hz to 10khz <125 nt/sqrt(hz) table 4 : sensor specifications 10m t version (low - field version) note 1: ratiometric (proportional to v dd ) . the absolute accuracy on magnetic sensitivity trimming is +/ - 2% .
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 5 of 1 4 data s heet rev 01 2 june/13 8.1 91205hb: high field version 25mt (marking x x h ) dc operating parameters t a = - 40 o c to 125 o c, v dd = 5.000 v , differential output (i.e. vout = a_out - co _out ) , unloaded . u nless otherwise specified . parameter. symbol test conditions min typ max units magnetic sensitivity s (1) t=25c , b = b l 97.5 100 102.5 v/t magnetic sensitivity over temp . s t (1) t= - 40, 25, 125c; see also below 10.2 95 100 105 v/t thermal sensitivity drift tc t= 25c <+/ - 200 ppm/c offset voltage voff t= 25c - 20 0 20 mv offset voltage over temperature voff t t= - 40, 25, 125c; see also below 11.1 - 50 0 50 mv linear magnetic field range b l - 20 20 mv fullscale magnetic field range b fs - 25 .. 2 5 mt non linearity nl b b fs 5 95 %vdd response time tr 8 s bandwidth ( - 3 db) dc to bw r load >1m ; c load <10pf 100 khz spectral noise density bnoise f=10hz to 10khz <125 nt/sqrt (hz) table 5 : sensor specifications 25mt version (high - field version) note 1 : ratiometric (proportional to v dd ) . the absolute accuracy on magnetic sensitivity trimming is +/ - 2% .
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 6 of 1 4 data s heet rev 01 2 june/13 9 detai led general description melexis imc current s ensor mlx91205 is a single axis magnetic field sensor based on the hall effect . it is an integrated combination of a cmos hall circ uit and a thin ferromagnetic concentrator. the cmos circuit contains two pair s of hall elements for its sensitivity direction parall el with the chip surface . the ferromagnetic concentrator amplifies the external magnetic field and concentrates it on the hall elements. the mlx91205 is ideally suited for current sensing in harsh automotive and industrial environments for both ac and dc currents . it produces a n analog, linear, ratio - metric output voltage proportional to the ap plied magnetic field parallel with the chip surface. the circuit is fabricated using a standard cmos process and the ferromagnetic layer is added in a simple post - processin g step. the monolithic device incorporates hall elements, offset cancellation circuitry, current source, chopper stabilized amplification circuitry, parameter programming capability. by dynamic offset cancellation any offset voltage caused by temperature v ariations, packaging stress or others is strongly reduced. as a result, the device has an extremely stable signal output, is immune to mechanical stress and is virtually immune to temperature cycling. therefore, the circuit features a wide applicatio n range and very high accuracy. 10 unique features different to other linear h all sensors the mlx91205 measure s the magnetic field parallel with the chip surface. therefore this sensor is ideally used as an open - loop current sensor for pcb mounting. it feature s small size application design and a simple construction for various current ranges . due to short response time and high bandwidth this sensor is suitable for high speed current measurement in a contactless , hi gh current, high voltage setup.
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 7 of 1 4 data s heet rev 01 2 june/13 11 performanc e graphs 11.1 offset over temperature the product is calibrated at room temperature and tested at - 40c, 25c and +125c. the offset performance 0v 20mv at room temperature and is 0v 50mv over the temperature range from - 40 to 125 c. the typical temperature drift is < 0mv/c 0.3 mv/c 11.2 sensitivity over temperature the p roduct is calibrated at room temperature and tested at - 40c , 25c and +125c . the sensitivity performance for the low field version is 280v/t 5 v/t at room temperature and 280v/t 10 v/t over the temperature range from - 40 to 125 c. typical temperature drift is < 200 ppm/ c. the corresponding s ensitivity performance for the high field version is 100 v/t 2. 5 v/t at roo m temperature and 100 v/t 5 v/t over the temperature range from - 40 to 125 c. 2 0 4 0 6 0 2 5 5 0 7 5 1 0 0 1 2 5 - 6 0 - 4 0 - 2 0 t e m p e r a t u r e [ c ] - 5 0 - 2 5 o f f s e t [ m v ] [ % v d d ] 1 . 2 0 . 8 0 . 4 - 0 . 4 - 0 . 8 - 1 . 2 2 8 5 2 9 0 s e n s i t i v i t y 2 5 7 5 1 0 0 1 2 5 2 7 0 2 7 5 t e m p e r a t u r e [ c ] - 5 0 - 2 5 1 0 1 . 8 1 0 3 . 6 [ v / t ] [ % ] 9 6 . 4 9 8 . 2 5 0
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 8 of 1 4 data s heet rev 01 2 june/13 12 applications information 12.1 low current measurement up to 2 a low currents can be measured with the mlx91205 by increasing the magnetic field via a coil around the sensor. the sensitivity (output voltage vs. current in coil) of the measurement will depend on the size of coil and number of turns. additional sensitivity and increased immunity to external fields ca n be gained by adding a shield around the coil. the bobbin provides very high dielectric isolation making this a suitable solution for high voltage power supplies with relative low currents. the output should be scaled to obtain the maximum voltage for the highest current to be measured in order to obtain the best accuracy and resolution. 12.2 medium current u p to 3 0 a with a single conductor located on the pcb, currents in the range of up to 3 0 amps can be measured. the sizing of the pcb trace needs to take i n to account the current handling capabilit y and the total power dissipation . the pcb trace needs to be thick enough and wide enough to handle the rms current continuously. the differential output voltage for this configuration can be approximated by the following equation: vout = typ. 35 - 40 mv/a * i for a current level of 3 0 a, th e output will be approximately 1 0 5 0 mv. 12.3 high current measurement up to 600 a another method of measuring high currents on pcbs is to use a large thick gauge copper trace capable of carrying the current on the opposite side of the pcb. the mlx91205 should be located near the centre of the trace, however because the trace is wide, the output is less sensitive to location on the pcb. this configuration also has less sensitivi ty due to the distance and width of the conductor.
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 9 of 1 4 data s heet rev 01 2 june/13 12.4 customer calibration with mcu in many applications one measures the output voltage of the 91205 with a microcontroller. the current - sensor - system accuracy can be significantly increased by customer calibration of the system after assembling the 91205 in the application. by applying a k nown current i.e.100 amperes, one can calibrate by means of the microcontroller the output voltage to the exact value i.e. 2.000v at 100 amps. by doing so, the offset and sensitivity can be calibrated simply at a certain temperature.
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 10 of 1 4 data s heet rev 01 2 june/13 13 application diagram 13.1 direct single ended output for reliable operation within the specifications the sensor must be connected as follows: * if the supply voltage is disturbed by emi it can be useful to place a second capacitor (100pf ceramic) pa rallel to the 100nf capacitor. 13.2 direct differential output for reliable operation within the specifications the sensor must be connected as follows: * if the supply voltage is disturbed by emi it can be useful to place a second capacitor (100pf ceramic) parallel to the 100nf capacitor. m l x 9 1 2 0 5 v d d p c p v p d a _ o u t + 5 v 1 0 0 n f * 2 4 7 n c c o _ o u t g n d g n d g n d 6 5 8 1 3 g n d 1 n f 1 n f g n d f u l l s c a l e o u t p u t = 2 . 5 + / - 2 . 2 5 v o l t s v o u t = a _ o u t g n d m l x 9 1 2 0 5 v d d p c p v p d a _ o u t + 5 v 1 0 0 n f * 2 4 7 n c c o _ o u t g n d 6 5 8 1 3 1 n f 1 n f f u l l s c a l e o u t p u t = 0 + / - 2 . 2 5 v o l t s v o u t = a _ o u t - c o _ o u t g n d g n d g n d g n d
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 11 of 1 4 data s heet rev 01 2 june/13 14 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 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 sold ering 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 throug h - 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, temperature 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 is contributing to global environmental conservation by promoting lead free so lutions. 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
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 12 of 1 4 data s heet rev 01 2 june/13 15 e sd precautions electronic semiconductor products are sensitive to electro static discharge (esd). always observe electro static discharge control procedures whenever handling semiconductor products. a well designed (capacitors close to pins and low resistive ground layout) pcb layout will help to improve esd robustness. 16 package information 16.1 package dimensions 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. 5.84 6.20** 1.27 typ 4.80 4.98* 1.55 1.73 0.127 0.250 1.40 1.55 0.35 0.49*** 3.81 3.99** 0 8 0.41 0.89
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 13 of 1 4 data s heet rev 01 2 june/13 16.2 pinout and marking 16.3 hall plate positioning t o p m a r k i n g : p a r t n u m b e r m l x 9 1 2 0 5 ( 5 d i g i t s ) 9 1 2 0 5 d i e v e r s i o n ( 2 d i g i t s ) x = l f o r l o w f i e l d v e r s i o n x = h f o r h i g h f i e l d v e r s i o n a b x l o t n u m b e r ( 5 d i g i t s ) w e e k d a t e c o d e ( 2 d i g i t s ) y e a r d a t e c o d e ( 2 d i g i t s ) y y w w a _ o u t p v p d c o _ o u t 1 v d d p c n c g n d 8 4 5 9 1 2 0 5 a b x 1 2 3 4 5 1 2 3 4 5 b o t t o m m a r k i n g : 1 . 8 5 2 . 1 5 2 . 3 5 2 . 5 5 0 . 4 6 + / - 0 . 0 6
mlx91205 imc - hall ? current sensor (triaxis ? technology) 3901091205 page 14 of 1 4 data s heet rev 01 2 june/13 17 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 re garding 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 i nto a system, it is necessary to check with melexis for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliability appl ications, such as military, medical life - support or life - sustaining equipment are specifically not recommended without additional processing by melexis for each application. the information furnished by melexis is believed to be correct and accurate. howev er, 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. ? 2012 melexis nv. all rights reserved. for the latest version of this document, go to our website at www.melexis.com or for additional information contact melexis direct: europe, africa, asia: america: phone: +32 1367 0495 phone: +1 248 306 5400 e - mail: sales_europe@melexis.com e - mail: sales_usa@melexis.com iso/ts 16949 and iso14001 certified

▲Up To Search▲

Price & Availability of MLX91205KDCAAH-003RE

	To Download MLX91205KDCAAH-003RE Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .