Overview

Description

The ISL6744 is a low cost, primary side, double-ended controller intended for applications using full and half-bridge topologies for unregulated DC/DC converters. It is a voltage mode PWM controller designed for half-bridge and fullbridge power supplies. It provides precise control of switching frequency, adjustable soft-start, precise deadtime control with deadtimes as low as 35ns, and overcurrent shutdown. Low start-up and operating currents allow for easy biasing in both AC/DC and DC/DC applications. This advanced BiCMOS design features low start-up and operating currents, adjustable switching frequency up to 1MHz, 1A FET drivers, and very low propagation delays for a fast response to overcurrent faults.

Features

  • Precision Duty Cycle and Deadtime Control
  • 100µA Start-up Current
  • Adjustable Delayed Overcurrent Shutdown and Re-Start
  • Adjustable Oscillator Frequency Up to 2MHz
  • 1A MOSFET Gate Drivers
  • Adjustable Soft-Start
  • Internal Over Temperature Protection
  • 35ns Control to Output Propagation Delay
  • Small Size and Minimal External Component Count
  • Input Undervoltage Protection
  • Pb-Free Plus Anneal Available (RoHS Compliant)

Comparison

Applications

Applications

  • Telecom and Datacom Isolated Power
  • DC Transformers
  • Bus Converters

Documentation

Type Title Date
Datasheet PDF 857 KB
Brochure PDF 5.49 MB 日本語
End Of Life Notice PDF 603 KB
Product Change Notice PDF 266 KB
Product Change Notice PDF 398 KB
Product Change Notice PDF 77 KB
Product Change Notice PDF 108 KB
Application Note PDF 509 KB
Application Note PDF 397 KB
9 items

Design & Development

Models