FS41

FEELING TECHNOLOGY Single Hall Effect Latch 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 FS41 Pb Free General Description The FS41 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to 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 supply range. A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF. Block Diagram Vdd 1 Regulator Hall Sensor 3 Output 2 Gnd Figure.1 This datasheet contains new product information. Feeling Technology 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 sales of the product. Rev1.2 July. 04, 2011 P.1 FEELING TECHNOLOGY Pin Connection [Top View] FS41 3. Output 2. Gnd 1. Vdd Figure.2 Pin Descriptions Name Vdd Gnd Output I/O P G O Pin No. 1 2 3 Description Positive power supply Ground Driver output Legend: I=input, O=output, I/O=input/output, P=power suppl...