UC3842 PWM controller

Description

UMW R UMW UC3842/43/44/45 .
The 3842/43/44/45 are fixed frequency current mode PWM controller. Line and DC to DC converter application.

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UC3842 Datasheet Preview — Preview of UC3842 PDF

Datasheet Specifications

Part number: UC3842
Manufacturer: UMW
File Size: 872.14 KB
Datasheet: UC3842-UMW.pdf
Description: PWM controller

Features

* Low Start-Up and Operating Current
* High Current Totem Pole Output
* Undervoltage Lockout With Hysteresis
* Operating Frequency Up To 500KHz Pin Connection Block diagram (toggle flip flop used only in 3844, 3845) Top view V R T Absolute Maximum Ratings Symb

Applications

* with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totempole output ideally suited for driving a power MOSFET.

UC3842 Distributors

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UC3842 PWM controller UMW

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