瑞萨电子 (Renesas Electronics Corporation)
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iW662

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Integrated Secondary-Side Synchronous Rectifier Controller and RapidCharge Interface IC for Qualcomm Quick Charge 3.0 and 2.0 Applications

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iW662 DatasheetiW662 Product Summary

概览

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.

iW662 Functional Block Diagram
iW662 Typical Applications Diagram
iW662 Functional Block Diagram
iW662 Typical Applications Diagram
  • 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

文档

相关文档
类型 文档标题 日期
数据手册
iW662 Datasheet
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产品简述
iW662 Product Summary
PDF 558 KB
其他
Reference Design EBC10227: iW1796-09 + iW662-01 18W QC2.0 & QC3.0 Charger Design
登录后下载 ZIP 3.56 MB
其他
Reference Design EBC10208: iW1790-09 + iW662-01 18W, 5V/3A; 6V/3A, 9V/2A; 12V/1.5A QC3.0 XM-Comm Design
登录后下载 ZIP 3.13 MB
其他
Reference Design EBC10209: iW1790-09 + iW662-02 24W, 5V/3A; 8V/3A, 9V/2.7A; 12V/2A QC3.0 XM-Comm Design
登录后下载 ZIP 3.70 MB
其他
iW662 High Voltage Dedicated Charging Port Verification
PDF 91 KB
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