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)


Type Title Date
Product Brief PDF 515 KB
Brochure PDF 8.73 MB
Brochure PDF 5.49 MB 日本語
Datasheet Log in to Download PDF 1.01 MB
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Design & Development