The ISL6745A is a low-cost, double-ended, voltage-mode PWM controller designed for half-bridge and full-bridge power supplies and line-regulated bus converters. It provides precise control of switching frequency, adjustable soft-start, and overcurrent shutdown. In addition, the ISL6745A allows for accurate adjustment of MOSFET non-overlap time (dead time) with dead times as low as 35ns, allowing power engineers to optimize the efficiency of open-loop bus converters. The ISL6745A also includes a control voltage input for closed-loop PWM and line voltage feed-forward functions. The ISL6745A is identical to the ISL6745, but is optimized for higher noise environments. Low start-up and operating currents allow for easy biasing in both AC/DC and DC/DC applications. This advanced BiCMOS design also features adjustable switching frequency up to 1MHz, 1A FET drivers, and very low propagation delays for a fast response to overcurrent faults. The ISL6745A is available in a space-saving 10 Ld MSOP package and is assured to meet rated specifications across a wide -40 °C to +105 °C temperature range.


  • Precision duty cycle and deadtime control
  • 100µA start-up current
  • Adjustable delayed overcurrent shutdown and restart
  • 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 (RoHS compliant)




  • Half-bridge converters
  • Full-bridge converters
  • Line-regulated bus converters
  • AC/DC power supplies
  • Telecom, datacom and file server power


Type Title Date
Datasheet PDF 632 KB
Brochure PDF 5.49 MB 日本語
Product Change Notice PDF 178 KB
Product Change Notice PDF 398 KB
Application Note PDF 746 KB
Application Note PDF 509 KB
Application Note PDF 397 KB
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