FD170H

Complementary output driver with Hall sensor

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.

Rev1.0 May. 08, 2009

P.1

FEELING

TECHNOLOGY

Features

High sensitivity Hall-effect sensor

Low power consumption

Output clamping totem-pole drivers

Lock-shutdown protection & auto-restart function

Edge detector and propagation delay timer

Thermal shutdown protection(TSD)

Available in SIP-4L package

For 12V to 48V DC motor / FAN systems

General Description

FD170H is a complementary dual pre-drivers output with embedded Hall-effect sensor IC. It integrates a output

clamping totem-pole drivers for NPN or NMOS drivers, a high sensitivity hall-effect sensor, an event timer for rotor

locked in SIP-4L package, which make this solution operation under a high power conditions of DC motors or FANs

as simply as possible.

For safety, Lock-shutdown function would turn the IC’s internal drivers off avoiding over-heat when the rotor is

locked, and IC will try to re-start the rotor’s torque after the time of these drivers’ shutdown.

Thermal-shutdown protection (TSD) ensures the internal drivers of IC are operating under a safe operating

temperature range.

All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motor

system and avoid any possible damages and guarantee under a correct and safe operation.

Block Diagram

Figure.1

Halogen Free

Bias Generator

Chopper

Amp.

Digital

Control

Logic

LSD & Re-running

Timer

Delay Timer

Edge

Detector

1

4

2

3

GND

NO

SO