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AH5772 document number: ds 35442 rev. 1 - 2 1 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 single phase motor driver with internal hall effect latch sensor description the ah577 2 is a single chip solution for driving single - coil brushless direct current (bldc) fans and motors. the integrated full - bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (emi) providing a lo w noise solution . to simplify system circuit and minimize external components, the device integrates a stable high sensitivity hall - effect sensor, voltage and temperature compensated internal references, amplifiers and the output h - bridge power switches with low r dson . to help pr otect the motor coil, the AH5772 provides rotor lock protection which shuts down the output drive if rotor lock is detected. the device automatically re - starts when the rotor lock is removed. in case of over voltage, the device shuts down the output drive and enters standby mode to help prevent over voltage stress on the coil. over temperature shutdown provides thermal protection for the device. the AH5772 is ava ilable in industry standard to94 package . features ? supports s ingle - phase f ull w ave bldc f an/ m otor d rive ? wide o perating v oltage r ange: 2.4v to 18v ? built - in h igh s ensitivity hall e ffect s ensor ? very l ow t emperature and v oltage c oefficient of t he m agnetic o perating s witch p oints ? built - in h - bridge with l ow r dson r esistance ? soft s witching for l ow n oise dc f an m otor a pplications ? rotor lock protection (lock d etection, o utput s hutdown and a utomatic r e - start) ? over v oltage s hutdown ? thermal p rotection ? no e xternal t iming c apacitor - reduces the n umbers of e xternal c omponents r equired ? industry s tandard to94 p ackage ? totally lead - free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments (front view) to94 applications ? 5v / 9v / 12v / 15v min. bldc cooling fans ? net b ook/ note b ook and desktop bl dc f ans ? instruments c ooling f ans ? medium voltage / low power bldc motor s 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 halogen - 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 2 3 4 1 . v d d 2 3 4 2 . o 1 3 . o 2 4 . g n d
AH5772 document number: ds 35442 rev. 1 - 2 2 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 typical applications circuit note: 4 . c1 is for power stabilization and to strengthen the noise immunity, th e recommended capacitance is 0.1 f for small motor current to 1 f or higher for larger motor current. the value of c1 should be selected adequately to support the motor current. pin description s pin number pin name description 1 v dd power supply input pin 2 o 1 output driv e sourcing & sinking pin 3 o 2 output driv e sourcing & sinking pin 4 gnd ground pin functional block diagram l o c k d e t e c t , s h u t d o w n a n d a u t o m a t i c r e - s t a r t s o f t s w i t c h i n g c o n t r o l h a l l s e n s o r a m p o 1 o 2 p o w e r m a n a g e m e n t g n d c o n t r o l l o g i c b l o c k f u l l b r i d g e d r i v e r t h e r m a l s h u t d o w n o v e r v o l t a g e p r o t e c t i o n d y n a m i c o f f s e t c o n c e l l a t i o n t e m p e r a t u r e a n d v o l t a g e c o m p e n s a t e d r e f e r e n c e 1 2 3 4 v d d v d d o 1 o 2 g n d a h 5 7 7 2 s y s t e m p o w e r d z c 1 d 1 o p t i o n a l m o t o r c o i l g n d
AH5772 document number: ds 35442 rev. 1 - 2 3 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 absolute maximum ratings ( note s 5 and 6 ) @ t a = +25c, unless otherwise specified.) symbol characteristics r ating unit v dd _max maximum s upply v oltage (note 6 ) 24 v v reverse reverse s upply v oltage on a ll p ins - 0.3 v i o (peak) maximum o utput c urrent (peak) 1000 ma b maximum m agnetic fl ux d ensity unlimited C d power dissipation to94 150 0 mw t s t g storage temperature range - 65 to + 15 0 o c t j maximum junction temperature + 1 50 ? dd , o1, o2 and gnd pins 4 k v 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 specificati on 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 24 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 symbol characteristic conditions min max unit v dd supply voltage operating 2.4 18 v t a operating temperature range operating - 40 + 105 ? electrical characteristics ( note 7) (@ t a = +25c, v dd = 12 v , unless otherwise specified.) symbol characteristics conditions min typ max unit i dd supply current no load, pwm switching or high C ov_th over voltage protection t hreshold for s hutdown to s tandby m ode voltage increasing 1 9 2 1 2 3 v v ov_rlth over voltage release t hreshold voltage decreasing 1 8 20 2 2 v v oh output voltage high v dd = 12v , i out = 5 00ma v dd - 0. 6 5 v dd - 0. 35 C dd = 12v , i out = 5 00ma t a = - 40 ? ? dd - 0. 7 5 v dd - 0. 35 C dd = 3v , i out = 3 00ma v dd - 0. 3 5 v dd - 0.2 3 C dd = 3v , i out = 3 00ma t a = - 40 ? ? dd - 0. 4 5 v dd - 0.2 3 C ol output voltage low v dd = 12v , i out = 5 00ma C dd =12v , i out = 500ma t a = - 40 ? ? C dd = 3v , i out = 3 00ma C dd =3v, i out = 300ma t a = - 40 ? ? C note : 7 . typical data is measured at t a = +25 ? c, v dd = 12v. the maximum and minimum parameters values over operating temperature range are not tested in production, they are guaranteed by design, characterization and process control .
AH5772 document number: ds 35442 rev. 1 - 2 4 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 electrical characteristics (continued) (note 8) (@ t a = +25c, v dd = 12v, unless otherwise specified.) symbol characteristics conditions min typ max unit r on_total combined n - and pmos r dson i ncluding b ond w ire r esistance v dd =12v , i out = 500ma C ? ? dd =12v , i out = 500ma t a = - 40 ? ? C ? ? dd =3v, i out = 300ma C ? ? dd =3v, i out = 300ma t a = - 40 ? ? C ? ? sw output soft switch time 17 C C on on time - lock detect time C C C dr duty ratio - lock detect to shutdown t ime t off / t on C C C j _ sdn_th ic j unction t emperature t hermal s hutdown t hreshold C C C o c t j _ sdn_hyst ic j unction t emperature t hermal s hutdown h ysteresis C C C o c note : 8 . typical data is measured at t a = +25 ? c, v dd = 12v. the maximum and minimum parameters values over operating temperature range are not tested in production, they are guaranteed by design, characterization and process control . magnetic characteristics ( note 9 , 10, 11 ) (@ t a = - 40c to + 105 c, v dd = 2.4 v to 18v, unless otherwise specified.) (1mt = 10 g) sym bol parameter conditions min typ max unit b op ( s outh p ole to p art m arking s ide ) operate point (note 10 , 11 ) 5 2 0 35 g auss b rp ( n orth p ole to p art m arking s ide) release point (note 10 , 11 ) - 35 - 2 0 - 5 b hy ( b op - b rp ) hysteresis C C C note s : 9 . typical data is measured at t a = +25 ? c, v dd = 12v . the maximum and minimum parameters values over operating temperature range are not tested in production, they are guaranteed by design, characterization and process control . 10 . m agnetic characteristics may vary with supply voltage, operating temperature and after soldering. 1 1 . the peak amplitude of the rotating motor magnetic flux density at the s ensor location should be greater than +/ - 7 0g . operating characteristics o f f o p r p o n o u t p u t v o l t a g e i n v o l t s o f f r p o p o n o u t p u t v o l t a g e i n v o l t s b o p b r p 0 b o p b r p 0 m a g n e t i c f l u x d e n s i t y ( b ) i n g a u s s ( g ) m a g n e t i c f l u x d e n s i t y ( b ) i n g a u s s ( g ) v o l v o l v o h v o h o 2 o 1
AH5772 document number: ds 35442 rev. 1 - 2 5 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 operating characteristics (c ontinued) ( note s 1 2 and 1 3 ) truth table o 1 o 2 magnetic flux density b h l b < b rp l h b > b op notes: 1 2 . when the motor locks with south pole at the hall element, o2 is kept on l and o1 is a clock with t on / t off ratio. when motor locks with north pole at the hall element, o1 is kept on l , o2 is a clock with t on / t off ratio. 1 3 . when re - start spinning occurs, the motor speed ramp s up to the normal spinning speed from zero. speed ramp - up profile depends on motor characteristics. o 2 o 1 t o n t o f f r e - s t a r t s p i n n i n g m o t o r l o c k e d c l e a r e d m o t o r l o c k e d d e t e c t e d m e c h a n i c a l l o c k m a g e n t i c s n n o r m a l s p i n n i n g p a r t m a r k s ( t o 9 4 ) n
AH5772 document number: ds 35442 rev. 1 - 2 6 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 application note dc supply v oltage s peed c ontrol motor speed can be controlled by varying the v dd supply voltage. for example, with 12v nominal motor, changing supply voltage between 12v to 2.4 v, spee d can be reduced from 100% to 20 % typically. soft s witching ah577 2 uses soft switching of the motor coil current during commutation to minimize audible switching noise and electromagnetic interference (emi) to provide a low noise solution. overvoltage s hutdown of o utput d rive when the supply voltage reaches the over voltage shutdown threshold, v ov_th , the ah577 2 shuts down all the output drive switches and enters standby mode to help prevent over voltage stress on the coil. v d d g n d v o 1 v o 2 2 0 0 s t y p .
AH5772 document number: ds 35442 rev. 1 - 2 7 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 typical operating characteristics magnetic operating switch points average supply current lock detect ton and shutdown toff periods 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 - 50 - 25 0 25 50 75 100 125 average supply current i dd ( m a) temperature t a ( c ) average supply current vs. temperature 12v 2.4v 18v 12v 2.4v 18v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 - 50 - 25 0 25 50 75 100 125 time(s) temperature t a ( c ) lock detect ton and toff vs. temperature toff lock detect ton v dd = 12v - 60 - 50 - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 - 50 - 25 0 25 50 75 100 125 gauss(g) temperature t a ( c ) magnetic switch points bop & brp vs. temperature bop, vdd = 2.4v brp, vdd = 2.4v bop, vdd = 12v brp, vdd = 12v bop, vdd = 18v brp, vdd = 18v b op b rp 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 2 4 6 8 10 12 14 16 18 20 average supply current i dd ( m a) supply voltage (v) average supply current vs. supply voltage t a = +25 c - 60 - 50 - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 2.4 3 5 12 18 gauss (g) magnetic switch points bop & brp vs. supply voltage b op b rp supply voltage (v) t a = +25 c 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 2 4 6 8 10 12 14 16 18 20 time (s) supply voltage ( v ) lock detect ton and toff vs. supply voltage t a = +25 o c toff lock detect ton
AH5772 document number: ds 35442 rev. 1 - 2 8 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 typical operating characteristics (continued) total h - b ridge path resistance C total r dson of high side and low side switches 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 - 50 - 25 0 25 50 75 100 125 r ds_on_total ( ? ) temperature t a ( c ) high+low side resistance r ds_on_total vs. temperature 12v 3v 18v i out = 300ma 2.4v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 2 4 6 8 10 12 14 16 18 20 r ds_on_total ( ? ) supply voltage ( v ) i out = 300ma, t a = +25 o c high+low side resistance r ds_on_total vs. supply voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 - 50 - 25 0 25 50 75 100 125 r ds_on_total ( ? ) temperature t a ( c ) high+low side resistance r ds_on_total vs. temperature 12v 5v 18v i out = 500ma 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 100 200 300 400 500 600 700 800 900 1000 r ds_on_total ( ? ) output current (ma) high+low side resistance r ds_on_total vs. current v dd = 12v, t a = 25 o c
AH5772 document number: ds 35442 rev. 1 - 2 9 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 thermal performance to94 power dissipation de - rating curve (note 14) t a ( ? c ) - 40 0 25 50 60 70 80 85 90 95 100 105 110 120 125 130 140 150 p d (mw) 1500 1500 1500 1200 1080 960 840 780 720 660 600 540 480 360 300 240 120 0 note 14: to94 through - hol e mounted to minimum recommended landing pads (through holes) on a 2 x 2 two - layer 2 oz.copper fr4 pcb ( 1 .6mm thickness) with copper flood on the top but without copper flood on the bottom layer. to94 power dissipation de - rating curve for c ircular pcb with center hole cut - o ut (note 15) t a ( ? c ) - 40 0 25 50 60 70 80 85 90 95 100 105 110 120 125 130 140 150 p d (mw) 827 827 827 662 595 529 463 430 397 364 331 298 298 265 198 165 132 0 note 1 5 : to94 through - hole mounted in a circular pcb with center hole cutout, single - layer 2 oz.copper fr4 pcb ( 1 .6mm thickness) with partial cop per flood on the bottom layer. the circular pcb diameter is 1.2 with the centre circular cutout diameter of 0.53 . the to94 space cut - out is 0.2x0.135. see below for details . 0 250 500 750 1000 - 40 - 20 0 20 40 60 80 100 120 140 160 power dissipation (mw) temperature t a ( c ) to94 thermal derating curve (custom circular pcb with centre hole cut - out) rthja = 151 o c/w 0 250 500 750 1000 1250 1500 1750 - 40 - 20 0 20 40 60 80 100 120 140 160 power dissipation (mw) temperature t a ( c ) to94 thermal derating curve rthja = 86.3 o c/w
AH5772 document number: ds 35442 rev. 1 - 2 10 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 thermal performance (continued) circular pcb dimensions the circular pcb diameter is 1.2 with the centre circular cutout diameter of 0.53. the to94 space cut - out is 0.2x0.135. single - layer 2 oz.copper fr4 pcb ( 1 .6mm thickness) with partial copper flood on the bottom layer. custom circular pcb C C ordering information part number package code packaging bulk quantity part number suffix ah 5772 - p - b p to94 1000 - b marking information (1) package t ype: to94 a h 5 7 7 2 - p - b p a c k i n g p a c k a g e b : b u l k p : t o 9 4 y : y e a r : 0 ~ 9 x : i n t e r n a l c o d e 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 y w w x 5 7 7 2 p a r t n u m b e r 1 2 3 4
AH5772 document number: ds 35442 rev. 1 - 2 11 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 package outline dimensions (all d imensions in mm . ) please see ap02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. (1) package type: to94 sensor location to94 dim min max typ a 1.46 1.66 1.56 a3 - - 0.76 b 0.35 0.56 0.39 b2 - - 0.46 c 0.36 0.51 0.38 d 5.12 5.32 5.22 e 3.55 3.75 3.65 e - - 1.27 e1 - - 3.81 l 13.50 15.50 14.50 l1 - - 1.42 s 0.63 0.83 0.73 - - 6 1 - - 4 2 - - 11 3 - - 6 all dimensions in mm 02(2x) 03(2x) 0(2x) 01(2x) c d e l b b2 l e e1 a a3 0 . 9 4 / 1 . 1 4 0 . 6 3 / 0 . 8 4 0 . 2 7 / 0 . 4 8 p a r t m a r k i n g s u r f a c e d i e 1 . 8 7 / 2 . 0 7 h a l l s e n s o r 1 2 3 4 m i n / m a x
AH5772 document number: ds 35442 rev. 1 - 2 12 of 12 www.diodes.com september 2014 ? diodes incorporated new product AH5772 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 un der 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. diode s 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 cu stomer or user of this 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 ag ainst 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 unaut horized 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 w ith such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product nam es and markings noted herein may also be covered by one or more united states, in ternational or foreign trademarks. this document is written in english but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life sup port diodes incorporated products are specifically not authorized for use as critical components in life support devices or system s without the express 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 b e 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 lega l, 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 provided by diodes incorporated. 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. cop yright ? 201 4 , diodes incorporated www.diodes.com

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