FD177

Version

：A.003

Page

：1

點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

FD177

General Specifications

FD177 is a single coil DC brushless motor driver IC with soft-switching,

locked protection, thermal shut down protection circuit, power polarity

reverse protection and frequency generator. The driver is optimal for single

coil fan applications with less external components.

Features and Benefits

Support single-phase full wave Brushless DC Motor Driver

Built-in Hall sensor input signal amplifier

Low voltage startup (VDD=2.0V)

High driving capability

Lock detection and automatic self-restart

Power polarity reverse protection

Thermal shut down protection circuit

Thin, compact, highly reliable package (TSOT-28)

Pin Description

O1

VSS

FGR

HP

O2

VDD

NC

HN

Package : TSOT-28

NO.

NAME DESCRIPTION

1

O1

Output driving & sinking pin 1

2

VSS

Ground pin

3

FGR

Frequency generator

4

HP

Hall sensor in+

5

HN

Hall sensor in-

6

NC

None connection

7

VDD

Power supply pin

8

O2

Output driving & sinking pin 2