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UTC3842 - Current Mode PWM Controller

Description

The UTC3842 provides the necessary

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 under-voltage lockout featuring start up current less than 1mA,a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N ch.

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Datasheet Details

Part number UTC3842
Manufacturer YOUWANG ELECTRONICS
File Size 123.68 KB
Description Current Mode PWM Controller
Datasheet download datasheet UTC3842 Datasheet
Additional preview pages of the UTC3842 datasheet.

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Full PDF Text Transcription

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UTC3842 LINEAR INTEGRATED CIRCUIT CURRENT MODE PWM CONTROL CIRCUITS DESCRIPTION The UTC3842 provides the necessary 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 under-voltage lockout featuring start up current less than 1mA,a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N channel MOSFETs, is low in the off state.
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