The iW1600-03 PWM controller works with Renesas' iW600 secondary-side voltage position controller for ultra-fast dynamic load response, while PrimAccurate™ primary-side control eliminates the need for an optocoupler.

The iW1600-03 directly drives a bipolar junction transistor (BJT) for softer switching versus FETs, improving EMI and reducing the number of EMI filtering components.

With no-load power consumption of <10mW, the iW1600-03 integrates an active start-up circuit for the shortest start-up time without sacrificing no-load power consumption.

Comprehensive protection features include SmartDefender™ advanced hiccup technology to help address soft short circuits in cables and connectors.


  • 10W Output Power
  • Drives External Low Cost BJT
  • Integrated Active Start-up Circuit
  • Easily Meets DoE External Power Supply and EU Code of Conduct, Version 5, Tier 2 Standards  
    • <10mW No-Load Power Consumption
  • Works with iW600 for Ultra-Fast Dynamic Load Response (DLR)
  • Quasi-Resonant Control Optimizes Efficiency at All Loads
  • PrimAccurate™ - Primary-Side Control, No Optocoupler Needed
  • User-Configurable  Voltage Offset Compensation for Voltage Loss in Cables and Connectors (4 Options)
  • EZ-EMI™ Design to Easily Meet Global EMI Specifications
  • SmartDefender Smart Hiccup Technology
    • Helps Address Soft-Shorts in Cables, Connectors without Latching Off
    • Helps Protect Cables and Connectors from Excessive Heat and Damage by Reducing Average Power During Short Circuit by at Least 50%
  • Fully Protected from Fault Conditions
    • Over-Temperature Protection
    • Output Overvoltage and Overcurrent
    • Input Undervoltage Protection
    • Sense-Resistor Short Circuit Protection
  • SOIC-7 Package




  • 10W AC/DC Travel Adapters for Smartphones and Tablets
  • AC/DC Offline Power Supplies for Consumer Electronics


Type Title Date
Product Brief PDF 386 KB
Datasheet Log in to Download PDF 892 KB
Brochure PDF 5.49 MB 日本語
3 items

Design & Development