Datasheet4U Logo Datasheet4U.com

UC3845A, UC3843A HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

UC3845A Description

UC284XA UC384XA HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER NOT FOR NEW DESIGN 1 .
PThe UC384xA family of control ICs provides the necessary features to implement off-line or DC to teDC fixed frequency current mode control schemes le.

UC3845A 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 UNDE

UC3845A Applications

* The corresponding thresholds for the UC3843A and UC3845A are 8.5 V and 7.9V. The UC3842A and UC3843A can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC3844A and UC3845A by the addition of an internal toggle flip flop which blanks the output off every oth

📥 Download Datasheet

This datasheet PDF includes multiple part numbers: UC3845A, UC3843A. Please refer to the document for exact specifications by model.
datasheet Preview Page 2 datasheet Preview Page 3

Datasheet Details

Part number
UC3845A, UC3843A
Manufacturer
STMicroelectronics ↗
File Size
173.11 KB
Datasheet
UC3843A_STMicroelectronics.pdf
Description
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
Note
This datasheet PDF includes multiple part numbers: UC3845A, UC3843A.
Please refer to the document for exact specifications by model.

📁 Related Datasheet

  • UC3845A-BW - Current Mode PWM Controller (FCI)
  • UC3845 - SMPS Controller (Fairchild Semiconductor)
  • UC3845B - High Performance Current Mode Controller (ON Semiconductor)
  • UC3845D - High Performance Current-Mode Controller (ON Semiconductor)
  • UC3845N - High Performance Current-Mode Controller (ON Semiconductor)
  • UC3845T - (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER (STMicroelectronics)
  • UC3840 - PWM CONTROLLER (STMicroelectronics)
  • UC3841 - Programmable Off-Line PWM Controller (Unitrode)

📌 All Tags

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER ST Microelectronics
ST Microelectronics UC3845A-like datasheet