UNISONIC TECHNOLOGIES CO., LTD

F2967

Preliminary

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R109-036.a

FOR VARIABLE SPEED FAN

MOTOR SINGLE-PHASE

FULL-WAVE PRE-DRIVER



DESCRIPTION

The UTC F2967 is a single-phase fan motor pre-driver IC.

This IC has variable speed function that works with an external

Pulse-Width Modulation signal. A quiet and low power

consumption motor driver circuit can be implemented by adding a

small number of external components.

This IC is optimal for driving large scale fan motors (with large

air volume and large current) such as those used in servers and

consumer products.



FEATURES

* Single-phase full-wave drive

* Variable speed control with External PWM input

* Current limiter circuit

* Reactive current cut circuit

* Compatible with 12V, 24V, and 48V power supplies

* Minimum speed setting pin

* Reference voltage output pin for Hall bias

* automatic reset and Lock protection functions incorporated

* (Rotation speed detection), RD (Lock detection) output

TSSOP-20

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ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

F2967L-P20-T

F2967G-P20-T

TSSOP-20

Tube

F2967L-P20-R

F2967G-P20-R

TSSOP-20

Tape Reel