UC3843B, UC3842B Datasheet - ST Microelectronics

UC3843B, UC3842B, HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

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.

UC3842B_STMicroelectronics.pdf

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

Datasheet Details

Part number:

UC3843B, UC3842B

Manufacturer:

STMicroelectronics ↗

File Size:

233.69 KB

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

📌 All Tags

UC3842B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER ST Microelectronics

ST Microelectronics UC3843B-like datasheet