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fd168y FD168H single digital output hall effect latch 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. rev1.1 apr. 23, 2009 p.1 / fd168y,FD168H feeling technology features open-drain pre-driver 50ma maximum sink output current precise magnetic switching thresholds available in sot-23 and sip-3l packages general description fd168y/FD168H is a hall sensor with latched digital output. its suitable for electronic commutation o f brushless dc motor applications. the fd168y/FD168H uses a choppe r amplifier for magnetic signal amplification, whic h can achieve a low offset and thus precise magnetic swit ching threshold. the output of no pin is active low or high depends on flux density of the external magnetic source whi ch is larger than threshold of b op or b rp . block diagram figure.1 halogen free bias generator hall plate chopper amplifier oscillator power on reset digital control logics
fd168y FD168H rev1.1 apr. 23, 2009 p.2 / fd168y_FD168H feeling technology pin connection figure.2 pin descriptions name i/o fd168y FD168H description vdd p 1 1 positive power supply vss g 3 2 ground no o 2 3 driver output legend: i=input, o=output, i/o=input/output, p=powe r supply, g=ground functional descriptions refer to the block diagram (figure.1), fd168y/fd168 h is composed of the following building blocks: bias generator the bias generator provides precise, temperature- a nd process-insensitive bias references for the anal og blocks. these references guarantee proper operation of the chip under all conditions specified in this specifi cation. oscillator built-in oscillator provides the clock signal. power on reset used to detect the power-up ramp and reset the digi tal circuits to attain correct operation as soon as 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 to generate an output switching signal from the cho pper amplifier. no vss vdd no vss vdd 1 2 3 top view 3 1 2 mark side fd168y FD168H
fd168y FD168H rev1.1 apr. 23, 2009 p.3 / fd168y_FD168H feeling technology absolute maximum ratings parameter symbol conditions values unit min. typ. max. operating temperature t op - -40 125 storage temperature t st - -40 150 dc supply voltage v dd - 2.4 16 v supply current i dd - 5 ma continuous current i o(cont) 50 ma junction temperature t j 150 power dissipation p d sip-3l 550 mw sot-23 230 ir-reflow lead temperature t p 10 sec 260 255 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 0 25 50 75 100 125 150 300 400 500 pd (mw ) temp. ( ) o c sip-3l power dissipation curve 200 100 0 600 0 25 50 75 100 125 150 200 300 pd (mw ) temp. ( ) o c sot23 power dissipation curve 100 0
fd168y FD168H rev1.1 apr. 23, 2009 p.4 / fd168y_FD168H feeling technology recommended operating conditions parameter symbol conditions values unit min. typ. max. supply voltage v dd - 2.4 16.0 v operating temperature range t a - -40 125 electrical characteristics v dd =12.0v, t a =25 (unless otherwise specified) parameter symbol conditions values unit min. typ. max. average supply current(no load) i dd 3.0 ma output saturation voltage v sat iout= 50ma 0.5 0.8 v output leakage current i lk vout=12v 20 a on resistance(r_nmos) r ds(on) iout= 50ma 10 magnetic characteristics parameter symbol conditions values unit min. typ. max. operate points ( b op ) b op 20 g release points ( b rp ) b rp -20 g hysteresis b hys 40 g hysteresis characteristics b (magnetic) bop magnetic flux density in gauss vout 0 brp vsat output voltage in voltage no pin bop brp
fd168y FD168H rev1.1 apr. 23, 2009 p.5 / fd168y_FD168H feeling technology performance graphs figure.3 figure.4 figure.5 figure.6 figure.7 figure.8
fd168y FD168H rev1.1 apr. 23, 2009 p.6 / fd168y_FD168H feeling technology application circuit reference figure.9 u1 fd168y/sot-23 vdd 1 vss 2 no 3 r1 50 r2 50 r3 10k c1 1uf c2 1uf c3 1uf c4 1uf l1 motor coil d1 gnd vdd fg note 1. r3 is ignored for fg output application 2. coil rc snubbers are option for improved fan noi se *2 *2 *3 3. diode d1 is used for fd128n reversed protection u2 fd128nx/sop8(ep) inn 1 cp 2 so 3 vss 4 no 5 vdd 6 co 7 vset 8 cn1 input con 1 2 3 4 option *1 c5 47pf pwm vs r4 20k r5 10k/ntc vdd vdd c6 2.2uf vs q1 r6 4.7k
fd168y FD168H rev1.1 apr. 23, 2009 p.7 / fd168y_FD168H feeling technology package dimension sot-23 symbols dimension in millimeters min nom max a - - 1.45 a1 - - 0.15 a2 0.90 1.15 1.30 b 0.30 - 0.50 c 0.08 - 0.22 d 2.90bsc e 2.80bsc e1 1.60bsc e 0.95bsc e1 1.90bsc l 0.30 0.45 0.60 l1 0.60ref l2 0.25bsc r 0.10 - - r1 0.10 - 0.25 0 ? 4? 8? 1 5? 10 ? 15? sensor location 0.86mm 1.12mm
fd168y FD168H rev1.1 apr. 23, 2009 p.8 / fd168y_FD168H feeling technology sip-3l unit:mm 2.1mm 1.55mm
fd168y FD168H rev1.1 apr. 23, 2009 p.9 / fd168y_FD168H feeling technology packing specification (tapping reel) sot-23 packing quantity specification 2500ea / 1 reel 4 reels / 1 inside box 2 inside boxes / 1 outside box
fd168y FD168H rev1.1 apr. 23, 2009 p.10 / fd168y_FD168H feeling technology sip-3l bag & box dimension packing quantity specification 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
fd168y FD168H rev1.1 apr. 23, 2009 p.11 / fd168y_FD168H feeling technology ic date code distinguish (sot-23 / sip-3l) part number ex: fd168y = m lot number year mass production version g halogen free order information part number operating temperature package description moq fd168yr-g1 -40 to +125 sot-23 20g (b) 2,500ea/reel FD168H-g1 -40 to +125 sip-3l 20g (b) 1,000ea

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