UC2843 - fixed frequency current mode PWM controller

This page provides the datasheet information for the UC2843, a member of the UC2842 fixed frequency current mode PWM controller family.

Product Overview

Part number	UC2843
Manufacturer	UMW
File Size	881.53 KB
Description	fixed frequency current mode PWM controller
Datasheet	UC2843 Datasheet
Additional preview pages of the UC2843 datasheet.

The 2842/43/44/45 are fixed frequency current mode PWM controller.

Line and DC to DC converter applications with a minimal external components.

Pin Connection.
Low Start-Up and Operating Current.
High Current Totem Pole Output.
Undervoltage Lockout With Hysteresis.
Operating Frequency Up To 500KHz Block diagram (toggle flip flop used only in 2844, 2845) V Top view R T Absolute Maximum Ratings Symbol Parameter VCC IO VI ISINK (E. A) Po Tstg TL TA Supply Voltage (low impedance source) Output Current Input Voltage (Analog Inputs pins 2,3) Error Amp Output Sink Current Power Dissipation (TA=250C.

UC2843 - CURRENTMODE PWM CONTROLLER (STMicroelectronics)
UC2843 - Current-Mode PWM Controllers (Texas Instruments)
UC2843A - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER (ST Microelectronics)
UC2843A - HIGH PERFORMANCE CURRENT MODE CONTROLLERS (Motorola)
UC2843A - CURRENT MODE PWM CONTROLLER (LINFINITY)
UC2843A - PWM CONTROLLERS (UTC)
UC2843A - High Performance Current Mode Controllers (ON Semiconductor)
UC2843A - Current-Mode PWM Controllers (Texas Instruments)
UC2843A - Current Mode PWM Controller (Unitrode)
UC2843A-Q1 - CURRENT-MODE PWM CONTROLLER (Texas Instruments)

Other Datasheets by UMW

Published: Aug 18, 2025 |