FD168Y

FD168H

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.

Rev1.1 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. It’s suitable for electronic commutation of brushless DC

motor applications. The FD168Y/FD168H uses a chopper amplifier for magnetic signal amplification, which can

achieve a low offset and thus precise magnetic switching threshold.

The output of NO pin is active low or high depends on flux density of the external magnetic source which is larger

Block Diagram

Figure.1

Halogen

Free

Bias Generator

Hall Plate

Chopper

Amplifier

Oscillator

Power On

Reset

Digital

Control

Logics