ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 1 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated ? support single-phase full wave min fan driver ? built-in hall sensor input amplifier ? low voltage startup ( vdd=2.5v ) ? lock detection and automatic self-restart ? without external timing capacitor, reduces the numbers of external component required ? low profile package : sip-4l ? sip-4l: available in ?green? molding compound (no br, sb) ? lead free finish / rohs compliant (note 1) ah5771 is the integrated hall sensor with output drivers designed for electrical commutation of brush-less dc motor application. the device is as follows: one-chip hall voltage generator for magnetic sensing; the error amplifier that amplifies the hall voltage; a comparator is to provide switching hysteresis for noise rejection; the full bridge driver for sinking and driving current load. internal band gap regulator is used to provide temperature compensated bias for internal circuits and allows a wide operating supply voltage range. the device includes features such as rotor lock protection with rotor lock detection and automatic self-restart to avoid damage to the coil when the rotor is blocked. ah5771 is rated for operation over-temperature range from -40 to 100 and voltage range from 2.5v to 15v. the device is available in low profile package sip-4l. v dd o1 o2 power v ss d2 c ah5771 d1 note: d2 (zenor diode) and capacitor c are for power stabilization, d2 is recommended to be 18vz (option), c is recommended to 0.1uf ~1uf (e-cap). d1 (reverse diode) is for reverse voltage protection. features general description typical applicat ion circuit
ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 2 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated a h 5 771 - p g - b packing package green p : sip-4l g : green b : bulk device package code packaging (note 2) bulk quantity part number suffix AH5771-PG-B p sip-4l 1000 -b notes: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied. please visit our website at http://www.diodes.com/products/lead_free.html 2. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 5771 12 4 3 1 : vdd 2 : o1 3 : o2 4 : vss ( top view ) sip-4l pin name pin no. description vdd 1 power supply pin o1 2 output driving & sinking pin o2 3 output driving & sinking pin v ss 4 ground pin ordering information pin assignment pin description
ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 3 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated logic block lock detector hall sensor amp v dd o1 o2 regulator v ss q1 q2 q4 q3 full bridge driver absolute maximum ratings (unless otherwise noted, at t a = 25 c) symbol characteristics values unit vdd supply voltage 18 v i o (peak as hold) output current (peak as hold) 400 ma p d power dissipation sip-4l 550 mw t st storage temperature range -55 ~ 150 o c recommended oper ating conditions symbol characteristics conditions ratings unit vdd supply voltage operating 2.5~15 v t a operating temperature range operating -40 to +100 c symbol characteristics conditions min typ. max unit idd supply current no load - 3.5 5 ma v oh output voltage high i out = 200ma 11.4 - - v v ol output voltage low i out = 200ma - - 0.6 v t on on time vdd = 12v - 220 - ms r dr duty ratio t off / t on - 10 - block diagram electrical characteristics (t a = 25 c, vdd = 12v; unless otherwise specified)
ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 4 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated magnetic characteristics (t a =25 c, vdd=2.5v~15v) (1mt = 10 g) symbol characteristic min typ. max unit b o p operate point -10 30 50 g brp release point -50 -30 -10 g b hy hysteresis - 60 - g performance characteristics t a ( c) 25 50 60 70 80 85 90 95 100 p d (mw) 550 440 396 352 308 286 264 242 220 t a ( c) 105 110 115 120 125 130 135 140 150 p d (mw) 198 176 154 132 110 88 66 44 0 power dissipation curve 0 100 200 300 400 500 600 0 255075100125150 t a (c) p d (m w ) marking information 5771 part number ( top view ) y ww x x : internal code : a~z : green y : year : 0~9 ww : week : 01~52, " 52" represents 52 and 53 week sip-4l
ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 5 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) package type: sip-4l active area depth sensor location marking side 0.7mm 1. 1 ? 0.1mm 1234 1.95 ? 0.1mm package dimension
ah5771 single phase hall effect latch smart fan motor controller ah5771 rev. 3 6 of 6 june 2009 ds31656 www.diodes.com ? diodes incorporated 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 ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liabi lity arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products desc ribed 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 diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed 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 fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized a pplication. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. life support diodes incorporated 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 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 in 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 expected 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 dev ices 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 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. copyright ? 2009, diodes incorporated www.diodes.com
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