Linear Technology LT3753 Forward Controller Datasheet

The LT


Linear Technology LT3753 Forward Controller Datasheet - cover page
Brand
Linear Technology
Category
Forward Controller
Document type
Datasheet
Language
English
Pages
37
File format
PDF
File size
437 KB
Published
03 July, 2014
Updated
25 September, 2023
MD5 checksum
2ACD2FCACBE44AD57A4E8100DA105B75

About this manual

The LT3753 is a current mode pulse-width modulation (PWM) controller designed specifically for active clamp forward converter applications. It supports input voltages up to 100V and features a programmable volt-second clamp that allows primary switch duty cycles above 50%, improving the utilization of switches, transformers, and rectifiers.

What's inside

  • Features
  • Applications
  • Absolute Maximum Ratings
  • Order Information
  • Pin Configuration
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Block Diagram
  • Operation
  • PCB Layout / Thermal Guidelines

Specifications

Input Voltage Range8.5V to 100V
Operating Junction Temperature (LT3753EFE)-40°C to 125°C
Operating Junction Temperature (LT3753HFE)-40°C to 150°C
Package Type38-lead plastic TSSOP
Oscillator Frequency Range100kHz to 500kHz

Frequently asked questions

What is the LT3753 and what converter topology is it optimized for?

The LT3753 is a current mode PWM controller that is optimized for an active clamp forward converter topology.

What is the input voltage range for this controller?

The LT3753 allows operation with an input voltage ranging from 8.5V to 100V.

What is the maximum duty cycle capability of this controller?

The LT3753 allows primary switch duty cycles above 50% through a programmable volt-second clamp.

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