UNISONIC TECHNOLOGIES CO., LTD

UPS703

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

1 of 12

Copyright © 2011 Unisonic Technologies Co., Ltd

QW-R119-015.C

HIGH PERFORMANCE

CURRENT MODE POWER

SWITCH

DESCRIPTION

The

UTC

UPS703

is

designed

for

several

special

enhancements to satisfy the demands, for example, Power-Saving

mode for low standby power (<0.3W), Frequency Hopping ,

Constant Output Power Limiting , Slope Compensation ,Over

Current Protection (OCP), Over Voltage Protection (OVP), Over

Load Protection (OLP), Under Voltage Lock Out (UVLO), Short

Circuit Protection (SCP) , Over Temperature Protection (OTP) etc.

IC will be shutdown or can auto-restart in relative situations.

FEATURE

* Low Startup Current (About 22μA)

* Fixed Switching Frequency(Norm. is 68KHz)

* Frequency Hopping For Improved EMI Performance.

* Lower Than 0.3W Standby Power Design

* Linearly Decreasing Frequency to 26KHz During Light Load

* Soft Start

* Internal Slope Compensation

* Constant Power Limiting For Universal AC Input Range

* Gate Output Maximum Voltage Clamp(15V)

* Max Duty Cycle 74%

* Over Temperature Protection

* Overload Protection

* Over Voltage Protection

* Leading Edge Blanking

* Cycle-by-Cycle Current Limiting

* Under Voltage Lock Out

* Short Circuit Protection

DIP-8

ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

UPS703L-D08-T

UPS703G-D08-T

DIP-8

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