UC3843B, UC3842B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

ST Microelectronics

Description

www.DataSheet4U.com ® UC2842B/3B/4B/5B UC3842B/3B/4B/5B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER *....TRIMMED OSCILLATOR FOR PREC.
TheUC384xB family ofcontrolICs providesthe necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a mi.

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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: STMicroelectronics ↗
File Size: 233.69 KB
Datasheet: UC3842B_STMicroelectronics.pdf
Description: HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
Note: This datasheet PDF includes multiple part numbers: UC3843B, UC3842B.
Please refer to the document for exact specifications by model.

Features

* to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockoutfeaturingstart-up current less than0.5mA,a precision reference trimmed

Applications

* hecorrespondingthresholdsforthe UC3843BandUC3845Bare8.5 V and7.9 V. The UC3842B and UC3843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC3844B and UC3845B by the addition of an internal toggle flip flopwhich blanks the output off every otherclock cy

UC3843B Distributors

📁 Related Datasheet

UC3843 UC3843A UC3843A-BW UC3843A-Q UC3843AD UC3843AN

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UC3842B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER ST Microelectronics

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