UC3943 Datasheet HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Manufacturer: Unisonic Technologies

UC3943 high performance current mode controllers by Unisonic Technologies - Datasheet Preview

Datasheet Details

Part number	UC3943
Manufacturer	Unisonic Technologies
File Size	386.14 KB
Description	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Download	UC3943 Download (PDF)

General Description

The UTC UC3943 is specifically designed for off-line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components.

The UTC UC3943 has UVLO thresholds 8.4V (on) and 7.6V(off), ideally suited for off-line converters.

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Overview

UNISONIC TECHNOLOGIES CO., LTD UC3943 LINEAR INTEGRATED CIRCUIT HIGH PERFORMANCE CURRENT MODE CONTROLLERS.

Key Features

S.
With burstmode for lower standby power.
With greenmode for higher light load efficiency.
Oscillator frequency guaranteed at 250kHz.
Automatic feed forward compensation.
Latching PWM for cycle-by-cycle current limiting.
Internally trimmed reference with undervoltage lockout.
High current totem pole output.
Undervoltage lockout with hysteresis.
Low startup and operating current.

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