Rev0.2 Nov. 09, 2004(LF)

General Description

The FS277, a 1-chip composed of hall sensor and output coil drivers, applied to a 2-phase

DC motor. The high sensitivity of Hall effect sensor is suitable for motors from mini-type

CPU coolers to blowers and DC fans. Typical operation current is 0.4A and operating

voltage range is from 3.0V ~ 20V.

Using few external components, FS277, a high performance integrated IC, is designed for a

2-phase DC motor circuit. The circuit diagram of the typical application example is as

below.

Features

˙

1 chip hall sensor/drivers

˙

Wide operating voltage range: 3.0V~20V

˙

Output sink current up to 0.4A

˙

Package : TO-92SP-4

Typical Application Circuit

TO-92SP-4

Pb Free

VCC

FTC

S277