FD1157H smart motor driver with embedded hall sensor this datasheet contains new product information. f eeling technology reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of t his product. no rights under any patent accompany t he sales of the product. rev1.3 nov. 21, 2008 p.1 feeling technology features motor driver with integrated hall sensor lock-shutdown protection & auto-restart function precise magnetic switching thresholds soft-switch phase-switching technique to reduce v ibration and acoustic noise thermal shutdown protection available in sip-4l packages for 12v systems general description FD1157H is a two coil motor driver with embedded ha ll sensor. it integrates the motor driver with the hall sensor, which simplifies the pcb(printed circuit board) desig n and make the fabrication of small-size motors pos sible. lock-shutdown and auto-restart function keeps the m otor from being over-heated and restarts the motor after being locked. soft-switch phase-switching technique is used to r educe the vibration and acoustic noise. thermal-shutdown protection ensures the motor drive r to operate under specified temperature ranges. all the protection mechanisms mentioned above combin e to provide a complete protecting scenario for the motor system, keep the motor system from possible damages and guarantee correct operations. block diagram figure.1 halogen free power on reset chopper amplifier bias generator hall plate coil driver digital control logics oscillator
FD1157H rev1.3 nov. 21, 2008 p.2 feeling technology pin connection marking distinguish figure.2 figure.3 pin descriptions legend: i=input, o=output, i/o=input/output, p=powe r supply, g=ground functional descriptions refer to the block diagram (figure.1), FD1157H is c omposed of the following building blocks: bias generator the bias generator provides precise, temperature- a nd process-insensitive bias references for the anal og circuit blocks. these references guarantee proper operation of the ic under all conditions specified in this s pecification. oscillator the built-in oscillator provides the clock signal f or the digital control logics power-on reset used to detect the power-up ramp and reset the digi tal circuits to achieve correct operation as soon a s the power is ready. chopper amplifier to achieve a higher magnetic sensitivity the choppe r amplifier structure is adopted in this design. us e of this structure dynamically removes both the offset and f licker noise at the same time. digital control logics hall sensor part C generates controlling signals f or the hall sensor. coil driver part C generates controlling signals f or the coil driver. name i/o FD1157H description vss g 4 ground so o 3 driver output no o 2 driver output vdd p 1 positive power supply 1157h 1 2 3 4 vss no so vdd ymv-xx lot number 1157h ymv-xx mass production version half month (ex:a,b ~ x) year (ex:2008 8)
FD1157H rev1.3 nov. 21, 2008 p.3 feeling technology 0 25 50 75 100 125 150(t shut ) 738 970 1200 pd (mw) temp. ( ) o c power dissipation curve 527 287 94 0 105 o c absolute maximum ratings values parameter symbol conditions min. typ. max. unit operating temperature t op - -20 105 storage temperature t st - -40 150 output clamp voltage v c 25 27 v dc supply voltage v dd - 18 (1) v supply current i dd - 6 ma continuous current i o(cont) 600 ma hold current i o(hold) 900 ma peak current i o(peak) <100s 1200 ma junction temperature t j 180 power dissipation p d sip-4l 1200 mw thermal resistance jc sip-4l 62 o c/w thermal resistance ja sip-4l 104 o c/w magnetic flux density b unlimited gauss ir-reflow lead temperature 10sec 260 note 1: v dd =18v,if v bemf is lower than the output clamp voltage (vc). 255 5 o c 10 1 sec 150 10 o c 90 30 sec 2~5 o c /sec 2~5 o c /sec second ir-reflow soldering condition room temp
FD1157H rev1.3 nov. 21, 2008 p.4 feeling technology recommended operating conditions values parameter symbol conditions min. typ. max. unit supply voltage v dd - 3.0 16 (1) v operating temperature range t a - -20 85 note 1: v dd =16v,if v bemf is lower than the output clamp voltage (vc). electrical characteristics v dd =12.0v, t a =25 (unless otherwise specified) values parameter symbol conditions min. typ. max. unit average supply current(no load) i dd 2.5 ma on resistance (no, so pin) r dson v dd =5v, t a =25 o c, iout=300ma 1 ohm thermal shutdown threshold t shut 150 locked rotor period t on 0.4 s locked rotor period t off 2.8 s magnetic characteristics values parameter symbol conditions min. typ. max. unit operate points b op 5 20 40 g release points b rp -5 -20 -40 g driver output vs. magnetic pole parameter test conditions no so north pole b < brp high low south pole b > bop low high note: the magnetic pole is applied facing the branded sid e of the package hysteresis characteristics no so v brp bop b brp bop v b
FD1157H rev1.3 nov. 21, 2008 p.5 feeling technology performance graphs figure.4 figure.5 figure.6 figure.7 figure.8 figure.9
FD1157H rev1.3 nov. 21, 2008 p.6 feeling technology lock shutdown C restart timing description: channel2: v dd pin current waveform channel3: output (so pin) voltage waveform channel1: output (no pin) voltage waveform note: the north pole (b > bop) is applied facing the bran ded side of the package. (t on ) (t off )
FD1157H rev1.3 nov. 21, 2008 p.7 feeling technology application circuit reference figure.10 note: c1=1uf, r1=2~5 ohm(option),d2(option) breakdown vol tage 16v vcc no so gnd vcc c1 d1 d2 r1 1157h ymv-xx
FD1157H rev1.3 nov. 21, 2008 p.8 feeling technology package dimension (unit: mm) sip-4l (halogen free) 1.95 0.1mm 1.10.1mm sensor location 2 - 3 d e g . 2 - 5 d e g . 4.20.1 0.4570.025 1.270.025 0.390.05 0.380.05 1.550.25 0.730.03 5.230.12 3 . 6 6 0 . 1 2 15.01.0
FD1157H rev1.3 nov. 21, 2008 p.9 feeling technology packing specification bag & box dimansion packing quantity specifications 1000 ea / 1 bag 25 bags / 1 inside box 4 inside boxes / 1 carton bag bag label 160 mm 200 mm box label 190 mm 630 mm 100 mm ftc logo inside box carton label ftc logo 240mm 400mm 650mm carton
FD1157H rev1.3 nov. 21, 2008 p.10 feeling technology order information part number operating temperature package description marking FD1157H-g1 -20 o c to +85 o c sip-4l 20g (b) -
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