概览

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.

ISL6744 Functional Diagram
ISL6744 Functional Diagram
  • 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)

应用

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

文档

设计和开发

ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    购买 / 样片
    器件号
    ISL6744ABZ
    circle过时
    memory
    spa
    view_in_ar
    		SOICN Tube 980
    ISL6744ABZ-T
    circle过时
    memory
    spa
    view_in_ar
    		SOICN Reel 2500
    ISL6744AUZ
    circle过时
    memory
    view_in_ar
    		MSOP Tube 980
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