概要
説明
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.
特長
- 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:
- Intelligent Low Power Mode Enables <20mW No-load Power Consumption
- Dual Over-Temperature Protection (OTP)
- On-chip Temperature Sensing Circuit and External NTC
製品比較
アプリケーション
- RapidCharge AC/DC Adapters for Smartphones, Tablets and Other Portable Devices
ドキュメント
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