UNISONIC TECHNOLOGIES CO., LTD

F2970

Preliminary

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R109-035.a

FOR FAN MOTOR

SINGLE-PHASE FULL-WAVE

DRIVER



DESCRIPTION

The UTC F2970 is a single-phase full-wave bipolar driver

control IC with excellent efficiency for fan motor.



FEATURES

* Single-phase full-wave drive (16V to 1.2A transistors are built in)

* Speed adjustment function by thermistor input and external

signal incorporated

→Enables silent and low-vibration variable speed control

* Kick-back absorption circuit are built in

* Low-consumption, low-loss, and low-noise drive enabled by the

soft switching circuit during phase shift

* HB incorporated

* Lock protection and automatic reset functions incorporated

* FG (rotation detection) output

* Regeneration Di incorporated with less external parts

* Thermal shutdown circuit incorporated

SOP-18



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

F2970L-S18-T

F2970G-S18-T

SOP-18

Tube

F2970L-S18-R

F2970G-S18-R

SOP-18

Tape Reel

Note: xx: Output Voltage, refer to Marking Information.