UC3843B Datasheet High-performance Pwm Controller

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: 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 .

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number	UC3843B
Manufacturer	Motorola Semiconductor (now NXP Semiconductors)
File Size	233.69 KB
Description	HIGH-PERFORMANCE PWM CONTROLLER
Datasheet	UC3843B UC3842B Datasheet (PDF)

General Description

The UC384xB family of control ICs provides the necessary

Key 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 a trimmed oscillator for precise DUTY CYCLE.

UC3843B Distributor

Similar Datasheet

Part Number	Description	Manufacturer
UC3843B	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER	ST Microelectronics
UC3843B	CONTROLLERS	UTC
UC3843B	HIGH-PERFORMANCE CONTROLLER	ON Semiconductor
UC3843B	Controllers	American First Semiconductor
UC3843B	High Performance Current Mode Controller	HOTCHIP

More Datasheets from Motorola Semiconductor (now NXP Semiconductors)

Part Number	Description
UC3843A	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3842A	HIGH-PERFORMANCE CONTROLLERS
UC3842B	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
UC3844D	HIGH PERFORMANCE CURRENT MODE CONTROLLERS