概览

The iW1798 is a 45W output, high-performance AC/DC RapidCharge™ power supply controller that integrates Renesas' XM-Comm technology, eliminating all optocouplers from travel adapters to reduce cost and improve reliability. It supports Qualcomm® Quick Charge™ 3.0, 2.0 and other rapid charging protocols.

The iW1798 is optimized to work with Renesas' iW662 secondary-side synchronous rectifier controller and rapid charge interface IC. The secondary-side IC uses XM-Comm technology to transmit all necessary information via an optocoupler to the iW1798, including voltage requests, output current limits, output voltage undershoot, output overvoltage, and fault and reset signals.

The device offers a full array of advanced protection features, including an advanced fault protection technology that reduces power during a fault, an X-Cap discharge function to safely discharge the input capacitor when the travel adapter is unplugged, and Renesas' advanced fault control technology to address soft short circuits in charger cables and connectors without latching off the output.

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

iW1798 Functional Block Diagram
iW1798 Typical Applications Diagram
iW1798 Functional Block Diagram
iW1798 Typical Applications Diagram
  • Output Power - 45W+
  • Optimized to Work with iW662 to Support Multiple RapidCharge Protocols:
    • Qualcomm Quick Charge 3.0
    • Qualcomm Quick Charge 2.0
  • XM-Comm - Proprietary Secondary-to-Primary Digital Communication via Power Transformer:
    • Reduces BOM and Significantly Simplifies Design
    • Handles All Rapid Charging Information
  • Ultra-Low No-Load Power Consumption
    • <75mW with Ample Margin at 230VAC
    • <20mW with External Active Start-Up Circuit
  • Robust Protection Features
    • Output Overvoltage Protection or X-Cap Discharge
    • Overcurrent Protection
    • SD pin for external NTC Temperature Protection
  • Advanced Fault Control Technology
    • Helps Protect Cables and Connectors from Excessive Heat and Damage by Reducing Average Power without Needing a Latch

应用

  • RapidCharge AC/DC Power Adapters for Smartphones, Tablets and Other Mobile Devices Using Qualcomm Quick Charge 3.0, 2.0 and other Protocols

文档

= 相关文档
类型 文档标题 日期
产品简述
iW1798 Product Summary
PDF 498 KB
手册
Power Products Brochure
PDF 8.73 MB
手册
Industrial Power Management Brochure
PDF 5.49 MB 日文
数据手册
iW1798 Datasheet
登录后下载 PDF 949 KB
4 items

设计和开发

ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    购买 / 样片
    器件号
    iW1798-38
    circle有效
    memory
    view_in_ar
    可提供样片
    		 SOIC-8 获取样片,
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