UC3845 - CURRENTMODE PWM CONTROLLER

Product Overview

ST Microelectronics

Part number	UC3845
Manufacturer	STMicroelectronics
File Size	96.20 KB
Description	CURRENTMODE PWM CONTROLLER
Datasheet	UC3845 Datasheet
Additional preview pages of the UC3845 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: Aug 26, 2005 |