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ah3372 document number: ds38874 rev. 2 - 2 1 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product high voltage high sensitivity hall effect unipolar switch description the ah3372 is a high voltage high sensitivity hall effect unipolar switch ic designed for proximity, position and level sensing in industrial and consumer home appliances and personal care applications . to support wide range of demanding applications, the design has been optimized to operate over the supply range of 3.0v to 2 8 v. with chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the ah3372 provides a reliable solution over the whole operating range. for robustness and protection, the device has a reverse blocking diode with a zener clamp on the supp ly. the output has a n over current limit and a zener clamp. the single open drain output can be switched on with south pole of sufficient strength. when the magnetic flux density ( b ) perpendicular to the package is larger than the operate point ( b op ) the output is switched on (pulled low) and is held on until magnetic flux density b is lower than the release point ( b rp ) . the output remains switched off for north pole fields to or no magnetic fields. the magnetic operating and release polarity is oppo sit e for sot23 and sc59 packages. the sot23 and sip - 3 (ammo pack), sip - 3 (bulk pack) packages require south pole to the part marking side to operate w hile sc59 require s south pole to the non - part marking side. features ? uni polar o peration ? high s ensitivity : b op and b rp of +30 g and + 20 g typical ? single open drain output with over current l imit ? 3.0v to 28 v o perating voltage r ange ? chopper stabilized design p rovides o superior temperature s tability o minimal switch point d rift o enhanced immunity to s tress ? good rf noise i mmunity ? reverse blocking diode ? zener clamp on s upply and output pins ? - 40 c to + 125 c operating t emperature ? e sd : hbm 6 k v ? industry s tandard sc59, sot23 and sip - 3 (ammo pack), sip - 3 (bulk pack) p acka ge s ? totally lead - free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments ( top view) sc59 and sot23 ( top view) sip - 3 (bulk pack) applications ? position and proximity sensing in consumer home appliances, building automation, office equipments and industrial applications ? open and close detect ? position detect ? level detect ? flow m eters ? contact - less switches notes: 1. no purposely added lead. fully eu directive 2002/95/ec (rohs), 2011/65/eu (rohs 2) & 2015/863/eu (rohs 3) compliant. 2. see https://www.diodes.com/quality/lead - free/ for more information about diodes incorporateds definitions of hal ogen - and antimony - free, "green" and lead - free. 3. halogen - and antimony - free "green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and < 1000ppm antimony compounds. 1 v d d g n d 2 3 o u t p u t 1 . v d d 2 . g n d 3 . o u t p u t
ah3372 document number: ds38874 rev. 2 - 2 2 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product typical applications circuit note: 4 . c in is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nf ~ 100nf. r l is the pull - up resistor . pin description s package: sc59, sot23 and sip - 3 (ammo pack), sip - 3 (bulk pack) pin number pin name function 1 v dd power supply input 2 gnd ground 3 output output pin functional block diagram c o n t r o l c u r r e n t l i m i t s a m p l e a n d h o l d l o w - p a s s f i l t e r a m p a m p p o w e r s w i t c h t o a l l s u b c i r c u i t s o u t p u t v d d g n d d y n a m i c o f f s e t c a n c e l l a t i o n a h 3 3 7 2 3 . 0 v t o 2 8 v o u t p u t g n d r l c i n v d d
ah3372 document number: ds38874 rev. 2 - 2 3 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product absolute maximum ratings ( note s 5 & 6 ) ( @ t a = +25c, unless otherwise specified.) symbol characteristic value unit v dd supply v oltage (note 6 ) 32 v v ddr reverse supply v oltage (note 6) - 32 v v out_max output off v oltage (note 6) 32 v i out continuous output c urrent 60 ma i out_r reverse output c urrent - 50 ma b magnetic f lux d ensity unlimited p d package power dissipation sip - 3 (ammo pack), sip - 3 (bulk pack) 550 mw sc59 and sot23 230 ts storage temperature range - 65 to + 1 65 c t j maximum junction temperature + 150 c esd hbm electros static discharge withstand - human body model (h b m ) 6 kv note s: 5 . s tresses greater than the 'absolute maximum ratings' specified above may cause permanent damage to the device. these are stres s ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not im plied. device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time . 6 . the absolute maximum v dd of 32 v is a transient stress rating and is not meant as a functional operating condition. it is not recommended to operate the device at the absolute maximum rated conditions for any period of time. recommended operating conditions (@ t a = - 40 c to + 1 2 5 c , unless otherwise specified.) symbol parameter condition rating unit v dd supply voltage operating 3.0 to 28 v t a operating temperature range operating - 40 to +1 25 c electrical characteristics (note 7 & 8) (@ t a = - 40 c to + 1 2 5 c , v dd = 3v to 28v, unless otherwise specified.) symbol parameter condition min typ max unit v out_on output on vo ltage i out = 20ma, b > b op - 0.2 0.4 v i lkg output leakage c urrent (when output is off) v out = 28v, b < b rp , output off - < 0.1 10 a i dd supply c urrent output open, t a = + 25 c - 3 3.5 ma output open, t a = - 40 c to +125 c - - 4 ma i dd_r reverse battery current v dd = - 18 v , t a = - 40 c to +125 c - - 0.01 1 m a v dd = - 28v , t a = - 40 c to +125 c - - 0.01 1.5 m a t p_on device power - on time (start - up time) v dd >= 3 v , b > b op (note 7) - 10 - s f c chopping frequency - - 800 - khz t d response time delay (time from magnetic threshold reached to the start of the output rise or fall) (note 9) - 3.75 - s t r output rising time (external pull - up resistor r l and load capacitance dependent) r l = 1 k? , c l = 20 pf - 0.2 1 s t f output falling time (internal switch resistance and load capacitance dependent) r l = 1 k? , c l = 20 pf - 0.1 1 s i ocl output current limit b > b op , (note 10 ) 30 - 55 ma v z zener clamp v oltage i dd = 5ma 28 - - v notes: 7. when power is initially turned on, v dd must be within its correct operating range (3.0v to 28v) to guarantee the output sampling. the output state is valid after the start - up time of 10 s typical from the operating voltage reaching 3v. 8. typical values are defined at t a = +25 c , v dd = 12v. maximum and minimum values over the operating temperature range is not tested in production but guaranteed by design, process control and characterization . 9. guaranteed by design, process control and characterization, not tested in production. 10. the device will limit the output current i out to current limit of i ocl .
ah3372 document number: ds38874 rev. 2 - 2 4 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product magnetic characteristics (note s 11 &12 ) (t a = - 40 c to + 1 2 5 c , v dd = 3.0 v to 28 v, unless otherwise specified . ) (1mt=10 gauss) symbol parameter condition min typ max unit b ops (s outh pole to the part marking side for sot23 and sip - 3 (ammo pack), sip - 3 (bulk pack) packages; south pole to the non - part marking side for sc59 package. see diagram below ) operat ion point v dd = 12v, t a = + 25 c - 30 - gauss t a = - 40 c to + 1 2 5 c 15 30 45 b rps (s outh pole to the part marking side for sot23 and sip - 3 (ammo pack), sip - 3 (bulk pack) packages; south pole to the non - part marking side for sc59 package. see diagram below ) release point v dd = 12v, t a = + 25 c - 20 - t a = - 40 c to + 1 2 5 c 5 20 35 b hy ( |b opx | - |b rpx |) hysteresis (note 1 3 ) v dd = 12v, t a = + 25 c - 10 - t a = - 40 c to + 1 2 5 c 5 10 17 notes: 11. when power is initially turned on, v dd must be within its correct operating range (3.0v to 28v) to guarantee the output sampling. the output state is valid after the start - up time of 10us typical from the operating voltage reaching 3v. 12. typical values are defined at t a = +25 c , v dd = 12v . maximum and minimum values over the operating temperature range is not tested in production but guaranteed by design, process control and characterization . 13. maximum and minimum hysteresis is guaranteed by des ign, process control and characterization. b h y v d d b r p s b o p s 0 t u r n o f f t u r n o n ( o f f - s t a t e ) ( o n - s t a t e ) v o u t _ o n = v s a t ( m a g n e t i c f l u x d e n s i t y b ) ( o u t p u t v o l t a g e ) o u t p u t p a r t m a r k n s s o t 2 3 p a r t m a r k s s i p - 3 ( a m m o p a c k ) n p a r t m a r k n s s c 5 9 s i p - 3 ( b u l k p a c k )
ah3372 document number: ds38874 rev. 2 - 2 5 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product typical operating characteristics output switch operate and release points (magnetic thresholds) C b op s and b rp s supply current
ah3372 document number: ds38874 rev. 2 - 2 6 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product typical operating characteristics ( cont . ) supply reverse current output switch on voltage output switch leakage current
ah3372 document number: ds38874 rev. 2 - 2 7 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product typical operating characteristics ( cont . ) output current limit
ah3372 document number: ds38874 rev. 2 - 2 8 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product thermal performance characteristics (1) package type : sc59 and sot 23 t a ( c ) 25 50 60 70 80 85 90 100 105 110 120 12 5 130 140 150 p d (mw) 230 184 166 147 129 120 110 92 83 74 55 46 37 18 0 (2) package type : sip - 3 (ammo pack), sip - 3 (bulk pack) t a ( c ) 25 50 60 70 80 85 90 100 105 110 120 12 5 130 140 150 p d (mw) 550 440 396 362 308 286 264 220 198 176 132 110 88 44 0 0 100 200 300 0 25 50 75 100 125 150 power dissipation pd (mw) ambient temperature t a ( o c) power dissipation curve - 40 0 100 200 300 400 500 600 0 25 50 75 100 125 150 p d (mw) t a ( c) power dissipation curve - 40
ah3372 document number: ds38874 rev. 2 - 2 9 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product ordering information part number package code packaging bulk 7 tape and reel ammo box quantity part number suffix quantity part number suffix quantity part number suffix ah 33 7 2 - p - a p sip - 3 (ammo pack) na na na na 4000/box - a ah 33 7 2 - p - b p sip - 3 (bulk pack) 1000 - b na na na na ah 33 7 2 - sa - 7 sa sot23 na na 3000/tape & reel - 7 na na ah 33 72 - w - 7 w sc59 na na 3000/tape & reel - 7 na na note s: 14 . ammo box is for sip - 3 ( ammo pack) spread lead . 1 5 . bulk is for sip - 3 (bulk pack) straight lead . marking information (1) package t ype: sc59 and sot 23 part number package identification code ah33 72 sc59 d s a h33 72 sot23 ms (2) package type: sip - 3 (ammo pack), sip - 3 (bulk pack) part number package identification code ah3 37 2 sip - 3 (ammo pack) 3 37 2 ah3 37 2 sip - 3 (bulk pack) 3 37 2 a h 3 3 7 2 - x - x p a c k i n g 7 : t a p e & r e e l a : a m m o b o x ( n o t e 1 4 ) b : b u l k ( n o t e 1 5 ) p r o d u c t n a m e p a c k a g e p : s i p - 3 ( a m m o p a c k ) p : s i p - 3 ( b u l k p a c k ) s a : s o t 2 3 w : s c 5 9 x x y w x ( t o p v i e w ) x x : i d e n t i f i c a t i o n c o d e w : w e e k : a t o z : 1 t o 2 6 w e e k ; x : i n t e r n a l c o d e y : y e a r 0 t o 9 a t o z : 2 7 t o 5 2 w e e k ; z r e p r e s e n t s 5 2 a n d 5 3 w e e k 3 3 7 2 p a r t n u m b e r ( t o p v i e w ) y w w x x : i n t e r n a l c o d e y : y e a r : 0 ~ 9 w w : w e e k : 0 1 ~ 5 2 , " 5 2 " r e p r e s e n t s 5 2 a n d 5 3 w e e k
ah3372 document number: ds38874 rev. 2 - 2 10 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product package outline dimensions (all d imensions in mm . ) please see http://www.diodes.com/ package - outlines.html for the latest version. (1) package type: sc59 sensor location sc59 dim min max typ a 0.35 0.50 0.38 b 1.50 1.70 1.60 c 2.70 3.00 2.80 d - - 0.95 g - - 1.90 h 2.90 3.10 3.00 j 0.013 0.10 0.05 k 1.00 1.30 1.10 l 0.35 0.55 0.40 m 0.10 0.20 0.15 n 0.70 0.80 0.75 ? 0 8 - all dimensions in mm c l 0 . 7 / 0 . 9 1 . 3 / 1 . 5 h a l l s e n s o r m i n / m a x 0 . 5 9 5 / 0 . 7 1 5 0 . 1 0 / 0 . 2 0 d i e p a r t m a r k i n g s u r f a c e p i n 1 a m j l d b c h k g n
ah3372 document number: ds38874 rev. 2 - 2 11 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product package outline dimensions ( cont .) (all d imensions in mm . ) please see http://www.diodes.com/ package - outlines.html for the latest version. (2) package type: s ot 23 sensor location s ot23 dim min max typ a 0.37 0.51 0.40 b 1.20 1.40 1.30 c 2.30 2.50 2.40 d 0.89 1.03 0.915 f 0.45 0.60 0.535 g 1.78 2.05 1.83 h 2.80 3.00 2.90 j 0.013 0.10 0.05 k 0.890 1.00 0.975 k1 0.903 1.10 1.025 l 0.45 0.61 0.55 l1 0.25 0.55 0.40 m 0.085 0.150 0.110 a 0 8 -- all dimensions in mm 0 . 1 7 / 0 . 3 7 0 . 5 / 0 . 7 1 . 4 / 1 . 5 h a l l s e n s o r p a r t m a r k i n g s u r f a c e m i n / m a x p i n 1 d i e j k1 k l1 gauge plane 0.25 h l m all 7 a c b d g f a
ah3372 document number: ds38874 rev. 2 - 2 12 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product package outline dimensions ( cont .) (all d imensions in mm . ) please see http://www.diodes.com/ package - outlines.html for the latest version. (3) package type: sip - 3 ( bulk pack ) sip - 3 (bulk pack) dim min max typ a 1.40 1.60 1.50 b 0.33 0.43 0.38 b2 0.40 0.508 0.46 c 0.35 0.41 0.38 d 3.90 4.30 4.10 e 2.80 3.20 3.00 e1 1.24 1.30 1.27 f 0.00 0.20 -- j 2.62 ref l 14.00 15.00 14.50 l1 1.55 1.75 1.65 s 0.63 0.84 0.74 a1 -- -- 5 ? a2 -- -- 5 ? a3 -- -- 45 ? a4 -- -- 3 ? all dimensions in mm sensor locatio n d i e p a r t m a r k i n g s u r f a c e 0 . 6 3 / 0 . 8 4 0 . 2 7 / 0 . 4 8 h a l l s e n s o r 1 . 9 0 / 2 . 1 0 1 . 0 5 / 1 . 2 5 1 2 3 p a r t m a r k i n g s u r f a c e m i n / m a x a2(2x) a1(2x) a c l f l1 b e1 j d b2 e a4(2x a3(2x s
ah3372 document number: ds38874 rev. 2 - 2 13 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product package outline dimensions ( cont .) (all d imensions in mm . ) please see http://www.diodes.com/ package - outlines.html for the latest version. (4) package type: sip - 3 ( ammo pack ) sip - 3 (ammo pack) dim min max typ a 1.40 1.60 1.50 b 0.33 0.43 0.38 b2a 0.40 0.52 0.46 c 0.35 0.41 0.38 d 3.90 4.30 4.10 e 2.80 3.20 3.00 e1 1.24 1.30 1.27 e2 2.40 2.90 2.65 f 0.00 0.20 -- j 2.62 ref l 14.00 15.00 14.50 la 12.90 14.90 13.90 l1 1.55 1.75 1.65 l3 2.00 3.00 2.50 s 0.63 0.84 0.74 a1 -- -- 5 ? a2 -- -- 5 ? a3 -- -- 45 ? a4 -- -- 3 ? all dimensions in mm sensor location d i e p a r t m a r k i n g s u r f a c e 0 . 6 3 / 0 . 8 4 0 . 2 7 / 0 . 4 8 h a l l s e n s o r 1 . 9 0 / 2 . 1 0 1 . 0 5 / 1 . 2 5 1 2 3 p a r t m a r k i n g s u r f a c e m i n / m a x a4(2x a3(2x s a2(2x) a1(2x) a j d e l 1 f b2 a l3 b e2 e1 c l a l
ah3372 document number: ds38874 rev. 2 - 2 14 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product suggested pad layout please see http://www.diodes.com/ package - outlines.html for the latest version. (1) package t ype: sc59 (2) package t ype: sot23 dimensions value (in mm) z 3.4 x 0.8 y 1 .0 c 2.4 e 1.35 dimensions value (in mm) c 2. 0 x 0.8 x1 1 . 35 y 0 . 9 y1 2 . 9 x y y1 c x1 x e y c z
ah3372 document number: ds38874 rev. 2 - 2 15 of 15 www.diodes.com may 2018 ? diodes incorporated ah3372 new product important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license unde r its patent or trademark rig hts, nor the rights of others. any customer or user of th is document or products described herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diod es incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthor ized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product name s and markings noted herein may also be covered by one or more united states, international or foreig n trademarks. this document is written in english but may be translated into mul tiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life support diodes incorpora ted products are specifically not authorized for use as critical components in life support devices or systems without the ex press written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided i n the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expe cted to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support d evices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety - related requirements concerning their products and any use of diodes incorporated products in such safety - critical, life support devices or systems, notwithstanding any devices - or systems - related information or support that may be pr ovided by diodes incor porated. further, customers must fully indemnify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety - critical, life support devices or systems. copyright ? 201 8 , diodes incorporated www.diodes.com

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