FS72X

FS72XY

Single Digital Output Hall Effect Latch

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 June. 29, 2009

P.1

FEELING

TECHNOLOGY

Features

Maximum output sink current 50mA

Open-drain pre-driver

Power reverse polarity protection

Available in SIP-3L, SOT23(FS72XY) package

General Description

FS72X/FS72XY is a Hall sensor with latched digital output. It’s suitable for electronic commutation of brushless DC

motor applications. The FS72X/FS72XY uses a chopper amplifier for magnetic signal amplification, which can

achieve a low offset and thus precise magnetic switching thresholds.

If a magnetic flux density larger than threshold Bop,NO is turned on(low). The output state is held until a magnetic

flux density reversal falls below Brp causing NO to be turned off (high)

Block Diagram

Figure.1

Pb Free

Bias Generator

Hall Plate

Sequencer

Chopper Amplifier

Digital control logics

Power On Reset

Oscillator