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data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 1 general description the am4953 is a single-phase btl output fan motor driver designed by bipolar process. this ic features high efficiency, silent operation and includes lock shutdown and automatic restart functions. when the motor is under lock condition, the lock shutdown function turns off the output current. when the lock condition is removed, the ic will restart automatically and allow dc fan to run. it is applied for high reliability and low noise application, such as personal computers, notebook, car audio, cpu cooling systems and power supplies in consumer electronics systems. the am4953 is available in msop-10, ssop-10, msop-8, soic-8 and psop-8 packages. features ? btl output single-phase full-wave linear drive (gain resistor=1k to 360k , gain=51db) ? support low-voltage drive and feature a wide usable voltage range (2.2v to 16v) ? low saturation output (high side and low side saturation voltage): v sat_total =1.2v (typical, i out =300ma) ? built-in lock protection and automatic restart circuits ? built-in fg/rd output ? built-in hall sensor bias (v hb =1.45v) ? thermal protection circuit ? small-sized, high thermal capacity package applications ? notebook, personal computers ? power supplies in consumer electronics, car audio ? cpu cooling systems msop-10 ssop-10 msop-8 soic-8 psop-8 figure 1. package types of am4953
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 2 1 2 3 4 8 7 6 5 in+ in- ct out1 gnd out2 vcc rd in+ hb in- ct 1 2 3 4 8 7 5 6 9 10 out1 out2 fg rd vcc gnd 1 2 3 4 8 7 6 5 in+ in- ct out1 gnd out2 vcc fg pin configuration mm package m8 package (msop-10) (msop-8) gs package (ssop-10) m package mp package (soic-8) (psop-8) figure 2. pin configurat ion of am4953 (top view) 1 2 3 4 8 7 6 5 in+ in- ct out1 gnd out2 vcc fg 1 2 3 4 5 10 9 8 7 6 in+ hb in- ct out1 rd fg vcc gnd out2
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 3 functional block diagram control circuit charge discharge out1 out2 in+ in- hb vcc gnd rd fg discharge pulse ct 1.5v reg 1 (1) (1) 3 (2) (2) 4 (3) (3) 5 (4) (4) 6 (5) (5) 7 (6) (6) 8 (7) (7) 9 (/) (8) 10 (8) 2 a (b) (c) a for msop-10/ssop-10 b for msop-8 c for soic-8/psop-8 figure 3. functional block diagram of am4953
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 4 tr: tape & reel blank: tube ordering information am4953 - package temperature range output signal part number marking id packing type am4953mm-g1 4953mm-g1 tube msop-10 fg & rd am4953mmtr-g1 4953mm-g1 tape & reel am4953gs-g1 4953gs-g1 tube ssop-10 fg & rd am4953gstr-g1 4953gs-g1 tape & reel am4953m8-g1 4953m8-g1 tube msop-8 rd am4953m8tr-g1 4953m8-g1 tape & reel am4953fm-g1 4953fm-g1 tube soic-8 fg am4953fmtr-g1 4953fm-g1 tape & reel AM4953FMP-G1 4953fmp-g1 tube psop-8 -40 to 105oc fg am4953fmptr-g1 4953fmp-g1 tape & reel bcd semiconductor's pb-free products, as designated with "g1" suffix in the part number, are rohs compliant and green. g1: green output signal: blank: fg&rd/rd f: fg package: mm: msop-10 gs : ssop-10 m8: msop-8 m: soic-8 mp: psop-8 circuit type
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 5 absolute maximum ratings (note 1, t a =25oc) parameter symbol value unit supply voltage v cc 20 v peak output current i out 800 ma fg/rd pull-up voltage v fg /v rd 15 v fg/rd output current i fg /i rd 10 ma msop-10 msop-8 585 ssop-10 800 soic-8 780 power dissipation p d psop-8 960 mw operating temperature t op -40 to 125 oc storage temperature t stg -55 to 150 oc esd (human body model) esd 4000 v esd (machine model) esd 200 v note 1: stresses greater than those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ?recommended operating co nditions? is not implied. exposure to ?absolute maximum ratings? for extended periods may affect device reliability. recommended operating conditions parameter symbol min max unit supply voltage v cc 2.2 16 v hall input voltage v icm 0 v cc -1.5 v operating ambient temperature t a -40 105 oc
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 6 electrical characteristics v cc =12v, t a =25 o c, unless otherwise specified. parameter symbol conditions min typ max unit i cc1 v ct =l 6 8 9.6 ma supply current i cc2 v ct =h 2 4 6 ma ct charge current i chg 1 1.7 2.5 a ct discharge current i dhg 0.15 0.27 0.36 a ct charge/discharge current ratio r ct i chg / i dhg 5 7 10 ct clamp voltage v cl 1.25 1.45 1.65 v ct comparator voltage v cp 0.25 0.45 0.65 v out low saturation voltage v sat_l i out =300ma 0.25 0.45 v out high saturation voltage v sat_h i out =300ma 0.95 1.3 v hall input sensitivity v hn 8 20 mv fg low level voltage v fg i fg =5ma 0.15 0.3 v fg leakage current i fgl v fg =15v 1 10 a rd low level voltage v rd i rd =5ma 0.15 0.3 v rd leakage current i rdl v rd =15v 1 10 a hb voltage v hb i hb =5ma 1.3 1.45 1.6 v
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 7 0 5 10 15 20 0 2 4 6 8 10 t a =25 o c i cc1 (v ct =l) i cc2 (v ct =h) i cc (ma) v cc (v) -25 0 25 50 75 100 125 0 2 4 6 8 10 12 14 v cc =12v i cc1 (v ct =l) i cc2 (v ct =h) i cc (ma) t a ( o c) -40 0 200 400 600 800 0.0 0.4 0.8 1.2 1.6 2.0 v cc =12v,t a =25 o c v sath v satl v sat (v) i out (ma) typical performance characteristics figure 4. i cc vs. v cc figure 5. i cc vs. t a figure 6. v sat vs. i out figure 7. p d vs.t a -25 0 25 50 75 100 125 150 0 100 200 300 400 500 600 700 800 p d (mw) t a ( o c) package: msop-10/msop-8 -40
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 8 typical performance characteristics (continued) figure 8. p d vs.t a figure 9. p d vs.t a figure 10. p d vs.t a -50 -25 0 25 50 75 100 125 150 0 150 300 450 600 750 900 1050 1200 package: psop-8 power dissipation (mw) ambient temperature ( o c) -50 -25 0 25 50 75 100 125 150 0 150 300 450 600 750 900 package: soic-8 power dissipation (mw) ambient temperature ( o c) -25 0 25 50 75 100 125 150 0 200 400 600 800 1000 p d (mw) t a ( o c) package: ssop-10
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 9 truth table items in- in+ ct out1 out2 fg rd mode 1 h l h l l 2 l h l l h h l purring rotation 3 h off off h lock protection
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 10 typical application fg vcc out2 gnd out1 ct in- in+ am4953 hall r1 d1 c1 c2 l rd r2 hb v fg v rd (note 4) (note 2) fg vcc out2 gnd out1 ct in- in+ am4953 r3 c1 c2 l ah921 r1 v fg d1 hb rd v rd r2 (note 5) (note 4) (note 4) note 2: adding d1 can protect the ic from destruction by reverse connection. if d1 is used, it is necessary to insert a capacitor c1 to provide a regene rative current route. similarly, if th ere is no nearby capacitor on the fan power supply line, c1 will also be necessary to improve reliability. its cap acity should be larger than 2.2 f. note 3: if the line between hall sensor output and hall sensor input of ic is long, the noise may occur in this line. but it can be eliminated by adding a capacitor c3. note 4: each of r1 and r2 is recommended to be 51k typical. r3 is recommended to be 2k and must be added when v cc is larger than 20v. note 5: the package of ah921 is sot-23-3. if it is packaged in to-92s-3 please exchange in- with in+. figure 11. typical application of am4953
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 11 mechanical dimensions msop-10 unit: mm(inch)
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 12 mechanical dimensions (continued) ssop-10 unit: mm(inch) 3.800(0.150) 4.000(0.157) 4.700(0.185) 5.100(0.201) 0.300(0.012) 0.450(0.018) 5.800(0.228) 6.200(0.244) 1.350(0.053) 1.550(0.061) 1.000(0.039) bsc 1.350(0.053) 1.750(0.069) 0.100(0.004) 0.250(0.010) 0.170(0.007) 0.250(0.010) 0.400(0.016) 1.270(0.050) 0 8
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 13 mechanical dimensions (continued) msop-8 unit: mm(inch)
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 14 mechanical dimensions (continued) soic-8 unit: mm(inch) 0 8 1 5 r 0 . 1 5 0 ( 0 . 0 0 6 ) r0.150(0.006) 1.000(0.039) 0.330(0.013) 0.510(0.020) 1.350(0.053) 1.750(0.069) 0.100(0.004) 0.300(0.012) 0.900(0.035) 0.800(0.031) 0.200(0.008) 3.800(0.150) 4.000(0.157) 7 7 2 0 : 1 d 1.270(0.050) typ 0.190(0.007) 0.250(0.010) 8 d 5.800(0.228) 6.200(0.244) 0.675(0.027) 0.725(0.029) 0.320(0.013) 8 0.450(0.017) 0.800(0.031) 4.700(0.185) 5.100(0.201) note: eject hole, oriented hole and mold mark is optional.
data sheet btl drive single-phase full-wave fan motor driver am4953 aug. 2011 rev. 1. 2 bcd semiconductor manufacturing limited 15 mechanical dimensions (continued) psop-8 unit: mm(inch) 3.202(0.126) 3.402(0.134)
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd., shenzhen office unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corp. 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax: +1-510-324-2788 - headquarters bcd semiconductor manufacturing limited no. 1600, zi xing road, shanghai zizhu sc ience-based industrial park, 200241, china tel: +86-21-24162266, fax: +86-21-24162277 bcd semiconductor manufacturing limited important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited

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