3521 Datasheet, PDF (1/6 Pages) Unisonic Technologies – CMOS IC

UNISONIC TECHNOLOGIES CO., LTD
3521
PWM CONTROLLER WITH
SUPERVISORY CIRCUIT FOR
SWITCHING POWER SUPPLY
CMOS IC
„ DESCRIPTION
UTC 3521 PWM controller is designed for switching mode power
supply for PCs. It provides all the functions necessary to monitor and
control the output of the power supply. Remote ON/OFF control,
power good circuitry, some protection features against over-voltage
and over-power are implements.
„ FEATURES
* Over-Voltage Protection for 3.3V, 5V and 12V
* Under-Voltage Detection for 3.3V, 5V and 12V
* Over-Power Protection
* Remote ON/OFF Function
* Power Good Circuitry
* Delay Time for PG Signal
* Delay Time for Over-Voltage and Under-Voltage Protection
* On-Chip Oscillator and Error Amplifier
DIP-16
„ ORDERING INFORMATION
Ordering Number
Lead Free Plating
Halogen Free
3521L-D16-T
3521G-D16-T
Package
DIP-16
Packing
Tube
3521L-D16-T
(1)Packing Type
(2)Package Type
(3)Lead Free
(1) T: Tube
(2) D16: DIP-16
(3) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-034.D