UC3844 - CURRENTMODE PWM CONTROLLER

Product Overview

STMicroelectronics

Part number	UC3844
Manufacturer	STMicroelectronics
File Size	132.02 KB
Description	CURRENTMODE PWM CONTROLLER
Datasheet	UC3844 Datasheet
Note	This datasheet PDF includes multiple part numbers: UC3844, UC3843. Please refer to the document for exact specifications by model.
Additional preview pages of the UC3844 datasheet.

TheUC3842/3/4/5family of controlICs provides the necessary

to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count. Internallyimplementedcircuits include undervoltagelockout featuring start-up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparatorwhich also providescurrentlimit control,and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel M.

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Published: Feb 22, 2008 |