mlx 90224 d ual hall effect latch 39010 90224 page 1 of 11 data sheet rev. 00 8 sept / 1 4 features and benefit s chopper stabilized amplifier stage cmos for optimum stability, quality and cost dual output phase/direction detection (b) applications direction detector speed sensor shaft encoding position sensing ordering information ordering information part no. temperature code package code packing form mlx9 0224eva - a b a - 000 - bu e ( - 40c to 85 c) va bu (bulk) 1. functional diagram 2. description the mlx90224 is a dual hall effect latch. it includes two hall effect latch functions of which typical thresholds are +/ - 2.0 mt. in each latch, the magnetic flux detection is performed by a switched silicon hall plate. the mlx90224lva - a ba output transistor will be latched on (b op ) in the presence of a sufficiently strong south pole magnetic field facing the marked side of the p ackage. similarly, the output will be latched off (b rp ) in the presence of a north field. spacing on the plates is 1.85mm. the output structure is an open - drain nmos transistor with a capability of 25 ma and protected against short - circuits. mlx90224 pin 1 v dd pin 2 latch plate 1 pin 3 gnd pin 4 latch plate 2 voltage regulator chopper chopper 1 2 3 4 replaced with logic for mlx90224 b
mlx 90224 d ual hall effect latch 39010 90224 page 2 of 11 data sheet rev. 00 8 sept / 1 4 table of contents features and benefit s ................................ ................................ ................................ ....................... 1 applications ................................ ................................ ................................ ................................ ............ 1 ordering information ................................ ................................ ................................ ......................... 1 1. functional diagram ................................ ................................ ................................ ................... 1 - 1 2. description ................................ ................................ ................................ ................................ .... 2 - 1 3. glossary of terms ................................ ................................ ................................ ....................... 3 4. absolute maximum rat ings ................................ ................................ ................................ ....... 3 5. mlx90224 electrical specifications ................................ ................................ ...................... 3 6. mlx90224 sensor spec ific specifications ................................ ................................ ............ 4 7. general description ................................ ................................ ................................ .................... 4 8. performance graphs ................................ ................................ ................................ ................... 5 9. applications informa tion ................................ ................................ ................................ .......... 6 10. standard information regarding manufactur ability of melexis products with different solde ring processes ................................ ................................ .......................... 8 11. esd precautions ................................ ................................ ................................ ............................. 8 12. package information ................................ ................................ ................................ ................... 9 13. disclaimer ................................ ................................ ................................ ................................ ....... 10
mlx 90224 d ual hall effect latch 39010 90224 page 3 of 11 data sheet rev. 00 8 sept / 1 4 3. glossary of terms gauss, tesla: two units to quantify a magnetic flux density. conversion: 1 mt = 10 gauss bop: b operating point: when the magnetic flux density increases and reaches the bop value, the output switches on. this value is in gauss. brp: b release point: when the magnetic flux density decreases and reaches the brp value, the output switches off. this value is in gauss. 4. absolute maximum ratings supply voltage, v dd 24 v supply current, i dd 50 ma output current, i out 4 0 ma output short - circuit current 150 ma operating temperature range, t a - 40c to 150c maximum junction temp, t j + 175c magnetic flux density infinite exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute - maximum - rated conditions for extended periods may affect device reliability. 5. mlx90224 electrical specifications dc operating parameters t a = - 40 o c to 85 o c, v dd = 4.5v to 24 v (unless otherwise specified) parameter symbol test conditions min typ max units supply voltage v dd operating 4.5 24 v supply voltage ramp up 1.5 v/ms supply current i dd 5.0 7.5 10 ma output current i out b>b op 20 ma saturation output voltage v sat b>b op , i out =20 ma 200 400 mv output voltage v out b mlx 90224 d ual hall effect latch 39010 90224 page 4 of 11 data sheet rev. 00 8 sept / 1 4 6. mlx90224 sensor specific specifications dc operating parameters t a = - 40 o c to 85 o c, v dd = 4.5v to 16 v (unless otherwise specified) parameter symbol test conditions min typ max units operate point b op - 40 o c to 8 5 o c, v dd = 4.5v to 16v 0.5 2.5 5.5 mt release point b rp - 40 o c to 8 5 o c, v dd = 4.5v to 16v - 5.5 - 2.5 - 0.5 mt hysteresis b hys - 40 o c to 8 5 o c, v dd = 4.5v to 16v 2.5 4.0 6.5 mt note: 1 mt = 10 gauss 7. general description the mlx 90224 speed and direction sensor is designed for use with multipole ring magnet targets having evenly distributed north and south magnetic poles on the circumference of the magnet. an example of the basic physical arrangement of the sensor and magn et is shown in fig. 1. the mlx90224 has two digital output signals. output s1 will provide a speed pulse from the changing magnetic flux at sensing element s1. output s2 will provide a phase shifted output identical in pulse width and period to s1. the mlx 90224 e va - a ba has latching magnetic bop and brp values of typically +/ - 2mt . figure 1 : application with a multipole ring magnet n s n s n n s n s n s n n s n s n s n s n s n s n s n s n s n s n s n s n s s s
mlx 90224 d ual hall effect latch 39010 90224 page 5 of 11 data sheet rev. 00 8 sept / 1 4 8. performance graphs 5 -5 flux density (mt) temperature ( o c) typical magnetic sw itch points v ersus temperature 90224 a, b 80 -3 -1 1 3 0 -40 120 160 200 40 b op b rp 0 25 o u t p u t v o l t a g e ( v ) flux density ( mt ) output voltage versus flux density 90224 a , b 0 5 10 15 20 - 2 - 4 - 6 2 4 6 0 v dd v sat b op b rp 10 0 supply current (ma) supply voltage (v) typical supply current v ersus supply voltage 90224 15 2 4 6 8 10 5 0 20 25 30 t a = -40 o c t a = 25 o c t a = 125 o c 500 0 v ds (on) (mv) temperature ( o c) typical saturation voltage v ersus temperature v dd = 12 v, i out = 20ma 90224 80 100 200 300 400 0 -40 120 160 200 40 v ds(on)
mlx 90224 d ual hall effect latch 39010 90224 page 6 of 11 data sheet rev. 00 8 sept / 1 4 9. applications information severe environment and automotive protection circuit v dd in severe cases it may be necessary to include a zener diode to clamp positive interference and schottky diodes to clamp negative excursions. c2 r3 r1, r2 = 5.6k r3 = 332 c1 = 10nf c2 = 2.2nf v dd c1 r1 output mlx 90224 c2 r2 output
mlx 90224 d ual hall effect latch 39010 90224 page 7 of 11 data sheet rev. 00 8 sept / 1 4 0 20 40 60 80 100 120 140 160 180 200 -40 -20 0 20 40 60 time (ms) magnetic field (g) bop brp out 1 out 2 b1 b2 timing diagram when applied a b1-b2 quadratic magnetic field on mlx90224, a version
mlx 90224 d ual hall effect latch 39010 90224 page 8 of 11 data sheet rev. 00 8 sept / 1 4 10. 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 sensi tivity 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 accord ing to table 2) wave soldering smds ( s urface m ount d evices) and thds ( t hrough h ole d evices) ? en60749 - 20 resistance of plastic - encapsulated smds to combined effect of moisture and soldering heat ? eia/jedec jesd22 - b106 and en60749 - 15 resistance to solder ing 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, temperature gradient, temperature profile etc) additional classification and qualification te sts 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 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 11. esd precautions electronic semiconductor products are sensitive to electro static discharge (esd). always observe electro static discharge control procedures whenever handling semiconduc tor products.
mlx 90224 d ual hall effect latch 39010 90224 page 9 of 11 data sheet rev. 00 8 sept / 1 4 12. package information n o t e s : 1 - a l l n o m i n a l m e a s u r e m e n t s i n m m . 2 - m o l d & p a c k a g e t o l e a d f r a m e o f f c e n t e r i s 0 . 0 0 5 m a x . b o t h h o r i z e n t a l & v e r t i c a l . 3 - m o l d i n g d i m e n s i o n s i n c l u d e e n d f l a s h . 1 7 . 0 1 9 . 0 0 . 2 5 / 0 . 3 5 0 . 0 / 0 . 1 0 . 5 1 n o m . 0 . 3 5 0 . 4 5 1 . 0 x 4 5 o ( r e f ) 4 . 1 0 4 . 5 0 3 . 7 6 3 . 8 6 4 5 1 . 2 2 1 . 3 2 5 . 0 8 5 . 2 4 5 . 3 3 5 . 4 3 3 . 3 0 3 . 4 6 3 . 6 3 3 . 7 9 2 2 4 e 1 2 3 4 5 6 f r o n t s i d e m a r k i n g : p a r t n u m b e r m l x 9 0 2 2 4 ( 3 d i g i t s ) 2 2 4 1 2 3 4 5 6 b a c k s i d e m a r k i n g : l o t n u m b e r ( 6 d i g i t s ) w e e k d a t e c o d e ( 2 d i g i t s ) y e a r d a t e c o d e ( 2 d i g i t s ) y y w w 0 . 1 8 0 . 3 1 4 5 1 . 1 0 / 1 . 2 0 0 . 6 1 / 0 . 6 6 0 . 2 4 / 0 . 2 9 5 o ( 2 x ) 5 o ( 2 x ) 4 . 1 4 4 . 3 0 2 . 6 9 2 . 7 9 v a h a l l p l a t e / c h i p l o c a t i o n 1 . 3 3 + / - 0 . 1 5 0 . 3 8 7 0 . 2 8 9 2 . 6 9 + / - 0 . 1 5 h a l l p l a t e s 0 . 2 5 x 0 . 2 5 1 . 8 5 + / - 0 a 1
mlx 90224 d ual hall effect latch 39010 90224 page 10 of 11 data sheet rev. 00 8 sept / 1 4 13. 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 des igning this product into a system, it is necessary to check with melexis for current information. this product is intended for use in normal commercial applications. applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life - support or life - sustaining equipment are specifically not recommended without additional processing by melexis for each application. the information furnished by melexis is believed to be correc t 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 cons equential 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 o ther 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: americas: asia: phone: +32 1367 0495 phone: +1 248 - 306 - 5400 phone: +32 1367 0495 e - mail: sales_europe@melexis.com e - mail: sales_usa@melexis.com e - mail: sales_asia@melexis.com iso/ts 16949 and iso14001 certified
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