UC3843T Datasheet - STMicroelectronics

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UC3843T (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

www.DataSheet4U.com ® UC3842T UC3843T UC3844T UC3845T HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER *....TRIMMED OSCILLATOR FOR PRECIS.
The UC384XT family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with.

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Datasheet Details

Part number:

UC3843T

Manufacturer:

STMicroelectronics ↗

File Size:

193.56 KB

Description:

(UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

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 lockout featuring start-up current less than 0.5mA, a precision reference trim

Applications

* The corresponding thresholds for the UC3843T and UC3845T are 8.5 V and 7.9 V. The UC3842T and UC3843T can operate to duty cycles approaching 100%. A range of zero to < 50 % is obtained by the UC3844T and UC3845T by the addition of an internal toggle flip flop which blanks the output off every other

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