UC3844A - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

STMicroelectronics

Download the UC3844A datasheet PDF. This datasheet also covers the UC3843A variant, as both devices belong to the same high performance current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

PThe UC384xA family of control ICs provides the necessary

Key Features

Figure 1. Package.

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UC3844A high performance current mode pwm controller by STMicroelectronics - Datasheet Preview — Note: The manufacturer provides a single datasheet file (UC3843A_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	UC3844A
Manufacturer	STMicroelectronics
File Size	173.11 KB
Description	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
Datasheet	UC3844A Datasheet

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Other Datasheets by STMicroelectronics

Part Number	Description
UC3844B	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
UC3844BN	HIGH-PERFORMANCE PWM CONTROLLER
UC3842	CURRENTMODE PWM CONTROLLER
UC3842A	HIGH-PERFORMANCE PWM CONTROLLER
UC3842B	HIGH-PERFORMANCE PWM CONTROLLER

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.

View original datasheet text

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.