跳转到主要内容
瑞萨电子 (Renesas Electronics Corporation) - June is Pride Month, a month to raise awareness of the rights and the culture of the LGBTQ+ community
替代产品
ISL6744A - Intermediate Bus PWM Controller
  • Notes:Not Recommended for New Designs

特性

  • 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)

描述

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.

应用

  • Telecom and Datacom Isolated Power
  • DC Transformers
  • Bus Converters
Part NumberStatusSamplesStockRoHSPackageLead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Pitch (mm)Pkg. Dimensions (mm)Pb (Lead) FreePb Free CategoryTemp. Range (°C)
ISL6744ABZObsoleteN/AOut of StockRoHS:EN
SOIC8#Tube31.3mm4.9 x 3.9 x 0.00YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +105°C
ISL6744ABZ-TObsoleteN/AOut of StockRoHS:EN
SOIC8#Reel31.3mm4.9 x 3.9 x 0.00YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +105°C
ISL6744AUZObsoleteN/AIn StockContactMSOP8#Tube20.7mm3.0 x 3.0 x 0.00YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +105°C