Power & Power Management



The iW1780H high-performance AC/DC RapidCharge™ power supply controller pairs with Renesas' iW636 secondary-side IC to provide a simple, low cost, high-efficiency solution to support Qualcomm Quick Charge 3.0 and 2.0 protocols.

The iW1780H uses a unique secondary-to-primary digital communication link signal to receive all rapid charge commands from the iW636 RapidCharge™ secondary-side controller via a single optocoupler.

A full array of protection features integrated into the iW1780H include Renesas' SmartDefender™ advanced hiccup technology to address soft short circuits in charger cables and connectors, helping to prevent excessive heat build-up and damage.

Qualcomm® Quick Charge™ is a product of Qualcomm Technologies, Inc.


  • Supports Qualcomm® Quick Charge™ 3.0 and 2.0 protocols
  • Proprietary secondary-to-primary digital communication and built-in decoder: 
    • Reduces BOM and significantly simplifies design
  • Single optocoupler for all RapidCharge information
  • Low no-load power consumption <10mW
  • High efficiency up to 90%
  • Fully protected from fault conditions 
    • Output overvoltage protection
    • Overcurrent protection
  • SmartDefender™ Smart Hiccup Technology 
    • Helps protect cables and connectors from excessive heat and damage by reducing average power during short circuit by at least 50%


  • Qualcomm® Quick Charge™ 3.0 or 2.0 power adapters
  • Rapid-charging AC/DC adapters for smartphones, tablets, other portable devices (3.6V to 12V, 1A to 3A)


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Product Brief
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Design & Development