The iW662 integrated secondary-side synchronous rectifier controller and rapid charge interface IC uses Renesas' XM-Comm technology to communicate back to the primary-side controller, the (iW1790, iW1796, iW1798) eliminating the need for optocouplers to create solutions for rapid charging protocols such as Qualcomm® Quick Charge™ 3.0 and 2.0 technology.

The device also integrates a synchronous rectifier controller that uses adaptive off-time control to remove the need for a parallel Schottky diode to reduce power loss during transitions. The total solution reduces overall BOM cost and improves efficiency in reduced form factor travel adapters.

The iW1790+iW662 chipset uses Renesas'advanced fault control technology to help address soft shorts in cables and connectors.

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


  • Integrates RapidCharge Interface IC and Synchronous Rectifier Controller in a Single IC
  • XM-Comm - Proprietary Secondary-to-Primary Digital Communication via Power Transformer:
    • No Need for Optocoupler
    • Reduces BOM and Significantly Simplifies Design
    • Handles All Rapid Charging Information
  • Supports Multiple RapidCharge Protocols
    • Qualcomm Quick Charge 3.0
    • Qualcomm Quick Charge 2.0
  • Synchronous Rectifier Controller
    • High-Voltage Drain Sensing up to 100V with No Additional External Clamping Circuits Required
    • Lossless MOSFET VDS Sensing for SR Timing Control with Digital Adaptive Turn-Off Control
    • Optimized 5V MOSFET Gate Driver
  • Double-layer cable protection:
    • Secondary side (iW662): Proprietary D+/D- Overvoltage Protection (OVP) Addresses VBUS D+/D Soft Shorts
    • Primary side (iW1790, iW1796, iW1798): Advanced Cable Fault Protection Reduces Average Output Power at Fault
  • Intelligent Low Power Mode Enables <20mW No-load Power Consumption
  • Dual Over-Temperature Protection (OTP)
    • On-chip Temperature Sensing Circuit and External NTC




  • RapidCharge AC/DC Adapters for Smartphones, Tablets and Other Portable Devices


Type Title Date
Product Brief PDF 558 KB
Brochure PDF 5.51 MB 日本語
Datasheet PDF 846 KB
Other ZIP 3.56 MB
Other ZIP 3.13 MB
Other ZIP 3.70 MB
Other PDF 91 KB
7 items

Design & Development