fs1102 single 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. rev1.2 jul. 12, 2011 p.1 feeling technology features wide operating voltage range: 3.0v to 28v maximum output sink current 50ma open-collector pre-driver power reverse polarity protection available in sip-3l package general description the fs1102 is an integrated hall effect latched sen sor designed for electronic commutation of brush-le ss dc motor applications. the device includes an on-chip hall v oltage generator for magnetic sensing, a comparator that amplifies the hall voltage, and a schmitt trigger t o provide switching hysteresis for noise rejection, and open-collector output. an internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating s upply range. a north pole of sufficient strength will turn the o utput on. in the absence of a magnetic field, the o utput is off. block diagram figure.1 vdd regulator hall sensor 1 2 3 gnd output halogen free
fs1102 rev1.2 jul. 12, 2011 p.2 feeling technology pin connection figure.2 pin descriptions name i/o pin no. description vdd p 1 positive power supply gnd g 2 ground output o 3 driver output legend: i=input, o=output, i/o=input/output, p=powe r supply, g=ground functional application circuit figure.3 1. vdd 2. gnd 3. output [top view] m m : 3 phase dc motor : hall effect sensor dc motor driver h a h b h c i c i b i a i c i b i a motor driver & control logic
fs1102 rev1.2 jul. 12, 2011 p.3 feeling technology absolute maximum ratings values parameter symbol conditions min. typ. max. unit operating temperature t op - -40 125 storage temperature t st - -65 150 dc supply voltage v dd - 3.0 28 v supply current i dd - 10 ma continuous current i o(cont) 50 ma junction temperature t j 160 power dissipation p d sip-3l 500 mw thermal resistance jc sip-3l 0.27 /mw lead temperature 10sec 260 figure.4 figure.5 255 5 o c 10 1 sec 150 10 o c 90 30 sec 2~5 o c /sec 2~5 o c /sec second soldering condition room temp 0 25 50 75 100 125 150 314 407 500 pd ( mw) temp. ( ) o c power dissipation curve 175 221 128 35 0 160 o c
fs1102 rev1.2 jul. 12, 2011 p.4 feeling technology recommended operating conditions values parameter symbol conditions min. typ. max. unit supply voltage v dd - 3.0 28 v operating temperature range t a - -40 125 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 - 3.5 10 ma output saturation voltage v sat isink= 20ma 200 400 mv output rise time t r rl=500 , cl=20pf(figure 7) 0.2 - 0.75 s output fall time t f rl=500 , cl=20pf(figure 7) 20 - 150 ns magnetic characteristics values parameter symbol conditions min. typ. max. unit operate points b op - - 150 g release points b rp 55 - - g hysteresis b hyst - 75 - g hysteresis characteristics figure.6 b (magnetic) +n magnetic flux density in gauss vout 0 -s -s +n vsat output voltage in voltage
fs1102 rev1.2 jul. 12, 2011 p.5 feeling technology test circuit figure.7 marking information figure.8 vcc fs1102 gnd vcc output 1 2 3 rl cl vout [top view] 1102 mass production version half month (ex:a,b ~ x) year (ex:2008 8) g halogen free
fs1102 rev1.2 jul. 12, 2011 p.6 feeling technology package dimension (unit: mm) sip-3l (halogen free) 2.65mm 1.23 mm sensor location (top view)
fs1102 rev1.2 jul. 12, 2011 p.7 feeling technology order information part number operating temperature package moq FS1102G1 -40 to +125 sip-3l 1000ea
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