10W AC/DC Digital Controller with <10mW Stand-by Power, Integrated Active Start0up Circuit and Fast DLR

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Designed for high power density, compact, low BOM-cost off-line 10W power supplies 

The iW1600 PWM controller works with Dialog’s 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 directly drives a 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 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. Learn more about SmartDefender advanced hiccup technology here.

Works with the iW600 voltage position controller for ultra-fast DLR


  • 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 Over-Voltage and Over-Current
    • Input Under-Voltage Protection
    • Sense-Resistor Short Circuit Protection


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

Block Diagrams

Typical applications diagram
Functional block diagram

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