UC3843B, UC3842B CONTROLLERS

UTC

Description

UNISONIC TECHNOLOGIES CO., LTD UC3842B/3843B LINEAR INTEGRATED CIRCUIT HIGH PERFORMANCE CURRENT MODE CONTROLLERS * .
The UTC UC3842B/3843B are specifically designed for off-line and dc-to-dc converter applications offering the designer a cost-effective solution with.

📥 Download Datasheet

UC3843B Datasheet Preview — This datasheet PDF includes multiple part numbers: UC3843B, UC3842B. Please refer to the document for exact specifications by model.

Datasheet Specifications

Part number: UC3843B, UC3842B
Manufacturer: UTC
File Size: 482.56 KB
Datasheet: UC3842B_UTC.pdf
Description: CONTROLLERS
Note: This datasheet PDF includes multiple part numbers: UC3843B, UC3842B.
Please refer to the document for exact specifications by model.

Features

* Trimmed oscillator for precise frequency control
* Oscillator frequency guaranteed at 250kHz
* Current mode operation to 500kHz
* Automatic feed forward compensation
* Latching PWM for cycle-by-cycle current limiting
* Internally trimmed reference with undervoltage lockout

Applications

* offering the designer a cost-effective solution with minimal external components. The UC3842B has UVLO thresholds 16V (on) and 10V(off), ideally suited for off-line converters. The UC3843B is tailored for lower voltage applications having UVLO thresholds of 8.4V(on) and 7.6V(off).

UC3843B Distributors

📁 Related Datasheet

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UC3842B CONTROLLERS UTC

UTC UC3843B-like datasheet