UC3843 - CURRENTMODE PWM CONTROLLER

Product Overview

STMicroelectronics

Part number	UC3843
Manufacturer	STMicroelectronics
File Size	132.02 KB
Description	CURRENTMODE PWM CONTROLLER
Datasheet	UC3843 Datasheet
Additional preview pages of the UC3843 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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UC3843B - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER (ST Microelectronics)
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Published: Feb 22, 2008 |