ap1346/1347 two coil fan motor predriver this datasheet contains new product information. anachip corp. reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of this product. no rights under any patent accompany the sale of the product. rev. 0.0 jun 9, 2004 1/5 ? features - compatible to a hall element - operating voltage (v cc ) : 4v to 28v - lock shutdown and automatic restart - rotation detection (rd) output name as ap1347 - speed indication output (fg) named as ap1346 - output current i o =70ma (max) - operating temperature (t opr ) : -30oc to +85oc - sop8 package - include thermal shutdown circuit ? application - high voltage, high current brushless dc fan ? general description the ap1346/7 fan motor predriver is suited for two-coil brush-less dc fan. all functions, including lock shutdown, automatic restart, speed indication (fg), have been integrated into one chip. when the motor is under lock cond ition, lock shutdown function turns off the output. when the lock condition is removed, the ic automatically restarts and allows dc fan to run. in addition, the fg function is to indicate the rotation speed and the rd function is to detect the motor status. ? pin assignment ap1346/1347 3 4 8 7 6 5 2 1 hs(+) vcc hs(-) fg/rd gnd ct out2 out1 ( top view ) sop-8l ? pin descriptions name description vcc power input hs(+) hall input fg /rd speed indication / rotation detection hs(-) hall input gnd ground ct timing capacitor out2 driver output out1 driver output ? ordering information part number package s: sop-8l ap134x x - x x x packing blank : tube a : taping lead l: lead free blank: normal 6: ap1346 7: ap1347 wafer body blank or a~z : if necessary to specify
ap1346/1347 two coil fan motor predriver anachip corp. www.anachip.com.tw rev 0.0 jun 9, 2004 2/5 ? block diagram 1 2 3 4 5 6 7 8 reg. hall amp predriver 1 predriver 2 control logic lock detection automatic restart vcc hs(+) fg/rd hs(-) gnd ct out2 out1 + - ? application circuit vcc hs(+) hs(-) hall element ct gnd d1 r1 c1 voltage input fg/rd out1 out2 r4 ap1346/ ap1347 r2 c2 d2 r5 q2 q1 r6 output v1 l1 l2 z 11 z 1n z 21 z 2n
ap1346/1347 two coil fan motor predriver anachip corp. www.anachip.com.tw rev 0.0 jun 9, 2004 3/5 ? absolute maximum ratings (t a =25oc) parameter symbol rating unit input voltage v cc 30 v output current i out 70 ma allowable power dissipation p d 550*(note1) mw operating temperature t opr -30 to +85 oc storage temperature t stg -55 to +125 oc *note1 : reduced by 5.5mw for each increase in ta of 1 oc over 25 oc ? electrical characteristics ( t a =25oc, v cc =12v, unless otherwise noted) rating parameter symbol conditions min. typ. max. unit input voltage v in 4 -- 28 v hall input voltage (dc+ac) v bh includes the amplitude of signal 1 -- v cc -0.5 v supply current i cc the output is off -- 4 5.5 ma hall amp input hysteresis (+) v hys+ delta v when v bh =6v 3 -- 15 mv hall amp input hysteresis (-) v hys- delta v when v bh =6v -15 -- -3 mv charge current i chg v ct = 1.5v 7.7 9.6 11.5 ua discharge current i dhg v ct = 1.5v 0.19 0.24 0.29 ua charge/discharge ratio r cd i chg /i dchg 32 40 48 -- clamp voltage v cl 1.6 2.0 2.4 v comparator voltage v cp 0.8 1.0 1.2 v output high level v oh i o = 10ma 10 10.5 -- v fg / rd pin output low v fgl / v rdl i fg = 5ma / i rd = 5ma -- -- 0.5 v fg / rd pin sink current capacity i fg / i rd v fgl = 2v / v rdl = 2v 8 -- -- ma
ap1346/1347 two coil fan motor predriver anachip corp. www.anachip.com.tw rev 0.0 jun 9, 2004 4/5 ? performance characteristics ta ( c) 25 50 60 70 80 85 90 pd (mw) 550 440 396 352 308 286 264 ta ( c) 95 100 105 110 115 120 125 pd (mw) 242 220 198 176 154 132 110 power dissipation curve 0 100 200 300 400 500 600 0 25 50 75 100 125 150 ta ( c) pd (mw) 85 note sop-8l package. ? marking information blank : normal l : lead free package y: year, "01"=2001 "02"=2002 ww: xth week,01-52 34 2 1 8765 sop-8l part number logo date code x: internal code ac ap1347 yy ww x x (top view) ~ note: for ap1346, part number is marked as ap1346.
ap1346/1347 two coil fan motor predriver anachip corp. www.anachip.com.tw rev 0.0 jun 9, 2004 5/5 ? package information package type: sop-8l view "a" l c view "a" h e a a2 a1 b e d 7 (4x) 0.015x45 7 (4x) y dimensions in millimeters dimensions in inches symbol min. nom. max. min. nom. max. a 1.40 1.60 1.75 0.055 0.063 0.069 a1 0.10 - 0.25 0.040 - 0.100 a2 1.30 1.45 1.50 0.051 0.057 0.059 b 0.33 0.41 0.51 0.013 0.016 0.020 c 0.19 0.20 0.25 0.0075 0.008 0.010 d 4.80 5.05 5.30 0.189 0.199 0.209 e 3.70 3.90 4.10 0.146 0.154 0.161 e - 1.27 - - 0.050 - h 5.79 5.99 6.20 0.228 0.236 0.244 l 0.38 0.71 1.27 0.015 0.028 0.050 y - - 0.10 - - 0.004 0 o - 8 o 0 o - 8 o
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