UC3843A - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

STMicroelectronics

General Description

PThe UC384xA family of control ICs provides the necessary

Key Features

Figure 1. Package.

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UC3843A high performance current mode pwm controller by STMicroelectronics - Datasheet Preview

Datasheet Details

Part number	UC3843A
Manufacturer	STMicroelectronics
File Size	173.11 KB
Description	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
Datasheet	UC3843A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UC284XA UC384XA HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER NOT FOR NEW DESIGN 1 FEATURES Figure 1. Package ■ TRIMMED OSCILLATOR DISCHARGE CURRENT ■ CURRENT MODE OPERATION TO 500kHz AUTOMATIC FEED FORWARD COMPENSATION DIP-8 SO-8 ■ LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING Table 1. Order Codes ■ INTERNALLY TRIMMED REFERENCE WITH Part Number Package UNDERVOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT t(s)UNDERVOLTAGE LOCKOUT WITH HYSTERESIS c■ LOW START-UP CURRENT (< 0.5mA) uDOUBLE PULSE SUPPRESSION rod2 DESCRIPTION PThe UC384xA family of control ICs provides the necessary features to implement off-line or DC to teDC fixed frequency current mode control schemes lewith a minimal external parts count.