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UC2843BN - HIGH-PERFORMANCE PWM CONTROLLER

This page provides the datasheet information for the UC2843BN, a member of the UC2842B HIGH-PERFORMANCE PWM CONTROLLER family.

Datasheet Summary

Description

TheUC384xB family ofcontrolICs providesthe nec- cycle ranges.

Features

  • to implement off-line or DC to DC UVLO thresholds of 16V (on) and 10V (off), ideally fixed frequency current mode control schemes wwwwit. DhataSheet4Us. cuomitedoff-line.

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Datasheet preview – UC2843BN

Datasheet Details

Part number UC2843BN
Manufacturer STMicroelectronics
File Size 151.27 KB
Description HIGH-PERFORMANCE PWM CONTROLLER
Datasheet download datasheet UC2843BN Datasheet
Additional preview pages of the UC2843BN datasheet.

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Full PDF Text Transcription

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UC2842B/3B/4B/5B ® UC3842B/3B/4B/5B HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER . TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL . OSCILLATOR FREQUENCY GUARANTEED AT 250kHz . CURRENT MODE OPERATION TO 500kHz . AUTOMATIC FEED FORWARD COMPENSA- TION . LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING . INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT . HIGH CURRENT TOTEM POLE OUTPUT . UNDERVOLTAGE LOCKOUT WITH HYSTER- ESIS . LOW START-UP AND OPERATING CURRENT Minidip SO8 comparatorwhich alsoprovidescurrent limit control, and a totem pole output stage designed to source or sink high peakcurrent. The outputstage, suitable for driving N-Channel MOSFETs, is low in the offstate.
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