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| AH372 document number: ds 38853 rev . 1 - 2 1 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product internal pull - up hall effect latch description AH372 is a single - digital - output hall - effect latch sensor with internal pull - up resistor for high temperature operation. the device includes an on - ch ip hall voltage generator for magnetic sensing, an amplifier to amplify hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an output driver with a pull - up resistor . an internal band - gap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range. when the magnetic flux density (b) perpendicular to the package is larger than operation point (b op ), output is switched on (out pin is pulled low). the output state is held on until a magnetic flux density reversal falls below b rp . when b is less than b rp , the output is switched off. the AH372 is available in sip - 3 (ammo pack) , sip - 3 (bulk pack) , s c59 and sot23 packages . features ? bipolar hall effect latch operation ? 2.2v to 20v operating r ange ? single o utput with built - in pull - up resistor ? 25ma output sink c apability ? - 40 c to + 12 5 c operating t emperature ? industry s tandard sip - 3 (ammo pack) , sip - 3 (bulk pack) , sc59 and sot23 p ackage s ? totally lead - free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments (t op view) sc59 and sot23 ( front view) sip - 3 (bulk pack) applications ? rotor position sensing for motor commutation ? encoder ? speed measurement C rpm m onitor ? contact - l ess current s witch note s: 1 . no purposely added lead. fully eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2) compliant. 2. see http://www.diodes.com/quality/lead_free.html for more information about diodes incorporateds definitions of hal ogen - and antimony - free, "green" and lead - f ree . 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. typical application circuits 3 phase hall motor 1 . v d d g n d 2 . 3 . o u t 1 . v d d 2 . g n d 3 . o u t m driver & control logic i a i b i c i a i c i b h b h a h c m: three phase hall motor digital hall effect sensor hall motor driver rpm sensing
AH372 document number: ds 38853 rev . 1 - 2 2 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product typical application circuits (cont.) typical AH372 circuit note: 4 . c in is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nf typical . pin description s package s: sc59, sot23, sip - 3 (ammo pack) and sip - 3 (bulk pack) pin number pin name function 1 v dd power supply input 2 g nd ground 3 out output functional block diagram a h 3 7 2 o u t g n d c i n v d d r e g u l a t o r h a l l p l a t e a m p 2 g n d o u t 3 2 v d d 1 r p u AH372 document number: ds 38853 rev . 1 - 2 3 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product absolute maximum ratings ( note 5 ) @ t a = +25c, unless otherwise specified.) symbol characteristics values unit v dd supply v oltage (note 6 ) 28 v v out (off) output Doff voltage 28 v i o (sink) output Don c urrent ( s ink) 25 ma b magnetic f lux d ensity unlimited p d package power dissipation sip - 3 (ammo pack) and sip - 3 (bulk pack) 550 mw sc59 and sot23 230 mw t s tg storage temperature range - 65 to +1 5 0 c t j maximum junction temperature + 1 50 c 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 speci fication is not implied. device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. 6 . the absolute maximum v dd of 28 v is a transient stress rating and is not meant as a functional operating cond ition. it is not recommended to operate the device at the absolute maximum rated conditions for any period of time. recommended operating conditions (@ t a = +25 c, unless otherwise specified.) symbol characteristic conditions rating unit v dd supply voltage (note 7) operating 2. 2 to 20 v t a operating temperature range operating - 40 to + 125 c note: 7. the output of ic will be switched after the supply voltage is over 2.2v, but the magnetic characteristics w ill not be normal until the supply is over 2.5 v . electrical characteristics (@ t a = +25 c, v dd = 12 v, unless otherwise specified.) symbol characteristic conditions min typ max unit v out output on voltage i out = 20 ma 300 400 m v i dd supply current b < b rp 2 4 ma i off output leakage current output off < 0.1 1 0 a r pu internal pull - up resistor 7 10 13 k ? AH372 document number: ds 38853 rev . 1 - 2 4 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product magnetic characteristics ( note 8 ) ( @ t a = +25 c, v dd = 2.5 v to 20v , unless otherwise specified.) (1mt=10 gauss) symbol characteristic min typ max unit b op (south p ole to p art m arking side for sip - 3 (ammo pack) , sip - 3 (bulk pack) and sot23 ; north p ole to p art m arking s ide for sc59 ) operat ion point 5 30 60 gauss b rp (south p ole to p art m arking s ide for sip - 3 (ammo pack) , sip - 3 (bulk pack) and sot23 ; north p ole to p art m arking s ide for sc59 ) release point - 60 - 30 - 5 b hy ( |b opx | - |b rpx |) hysteresis note: 8 . the m agnetic characteristics may vary with supply voltage, operating temperature and after soldering. v d d ( o u t p u t v o l t a g e ) b r p b o p 0 ( 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 t u r n o f f t u r n o n ( o f f - s t a t e ) v o u t ( s a t ) b h y ( o n - s t a t e ) 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 ) AH372 document number: ds 38853 rev . 1 - 2 5 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product thermal performance characteristics (1) package t ype s : sip - 3 (ammo pack) and sip - 3 (bulk pack) t a ( c ) 25 50 60 70 80 85 90 95 100 105 110 115 120 125 130 135 140 150 p d (mw) 550 4 40 3 96 3 52 308 2 86 264 242 220 198 176 154 132 110 88 66 44 0 (2) package t ype s : s c59 and sot23 t a ( c ) 25 50 60 70 80 85 90 100 110 120 1 30 1 40 1 50 p d (mw) 230 184 166 147 129 120 110 92 74 55 37 18 0 0 100 200 300 400 500 600 0 25 50 75 100 125 150 p d (mw) t a ( c) power dissipation curve - 40 0 100 200 300 0 25 50 75 100 125 150 p d (mw) t a ( c) power dissipation curve - 40 AH372 document number: ds 38853 rev . 1 - 2 6 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product ordering information part number package code packaging (note 11) bulk 7 tape and reel ammo box quantity part number suffix quantity part number suffix quantity part number suffix AH372 - p - a p sip - 3 (ammo pack) na na na na 4000/box - a AH372 - p - b p sip - 3 (bulk pack) 1000 - b na na na na AH372 - sa - 7 sa sot23 na na 3000/tape & reel - 7 na na AH372 - w - 7 w sc59 na na 3000/tape & reel - 7 na na notes : 9 . ammo box is for sip - 3 (ammo pack) spread lead . 10 . bulk is for sip - 3 (bulk pack) straight lead . 1 1 . reverse taping as shown on diodes inc. s urface mount (smd) packa g ing document ap02007, which can be found on our website http://www.diodes.com/datasheets/ap02007.pdf. marking information (1) package t ype s : sc59 and sot23 part number package identification code AH372 sc59 xh AH372 sot23 yh (2) package t ype s : sip - 3 (ammo pack) and sip - 3 (bulk pack) a h 3 7 2 - x - x p a c k i n g p a c k a g e p : s i p - 3 ( a m m o p a c k ) s i p - 3 ( b u l k p a c k ) s a : s o t 2 3 w : s c 5 9 a : a m m o b o x ( n o t e 9 ) b : b u l k ( n o t e 1 0 ) 7 : t a p e & r e e l 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 ; 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 x : i n t e r n a l c o d e 3 7 2 p a r t n u m b e r ( f r o n t 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 AH372 document number: ds 38853 rev . 1 - 2 7 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product package outline dimensions please see http://www.diodes.com/package - outlines.html for the latest version. (1) package t ype: sc59 sensor l ocation s c59 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 . 4 / 1 . 6 h a l l s e n s o r m i n / m a x ( i n m m ) 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 AH372 document number: ds 38853 rev . 1 - 2 8 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product package outline dimensions (cont.) please see http://www.diodes.com/package - outlines.html for the latest version. (2) package t ype: sot23 sensor l ocation sot23 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 . 6 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 ( i n m m ) 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 AH372 document number: ds 38853 rev . 1 - 2 9 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product package outline dimensions (cont.) please see http://www.diodes.com/package - outlines.html for the latest version. (3) package t ype: sip - 3 (bulk pack) sip - 3 (bulk pack) dim min max a 3.9 4.3 a1 a2 a3 45 a4 b 2.8 3.2 c 1.40 1.60 d 0.33 0.432 e 0.40 0.508 f 0 0.2 g 1.24 1.30 h 2.51 2.57 j 0.35 0.43 l 14.0 15.0 n 0.63 0.84 p 1.55 - all dimensions in mm note : 1 2 . sip - 3 (bulk pack) - thickness j includes burrs sensor l ocation 1 2 3 0 . 5 1 m m t y p p a r t m a r k i n g s u r f a c e 1 . 9 0 / 2 . 1 0 1 . 6 0 / 1 . 8 0 m i n / m a x ( i n m m ) l j n d c g h b p a e f a 3 a4 a 1 a 2 AH372 document number: ds 38853 rev . 1 - 2 10 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 new product package outline dimensions (cont.) please see http://www.diodes.com/package - outlines.html for the latest version. (4) package t ype: sip - 3 (ammo pack) sip - 3 (ammo pack) dim min max a 3.9 4.3 a1 a2 b 2.8 3.2 c 1.40 1.60 d 0.35 0.41 e 0.43 0.48 f 0 0.2 g 2.4 2.9 n 0.63 0.84 p 1.55 - all dimensions in mm sensor l ocation 1 2 3 0 . 5 1 m m t y p p a r t m a r k i n g s u r f a c e 1 . 9 0 / 2 . 1 0 1 . 6 0 / 1 . 8 0 m i n / m a x ( i n m m ) g a b p e f d a2 a1 n c AH372 document number: ds 38853 rev . 1 - 2 11 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 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 AH372 document number: ds 38853 rev . 1 - 2 12 of 12 www.diodes.com august 2016 ? diodes incorporated ah37 2 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 rights, nor the rights of others. any customer or user of t his 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, internation al or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or fore ign 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 incorp orated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or syst ems 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 safe ty - 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 provided by diodes in corporated. 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 6 , diodes incorporated www.diodes.com |
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