跳转到主要内容

概览

描述

The iW636 is a Rapid Charge™ secondary-side controller for USB interface supporting Qualcomm® Quick Charge™ 3.0 (QC3.0) technology and secondary-to-primary communication protocol, that works with the iW1782 or iW1780H primary-side AC/DC digital controller to enable rapid charging of QC3.0/QC2.0-enabled mobile devices.

The iW636 integrates an optocoupler driver that relays commands to the iW1782 or iW1780H AC/DC controllers. These chipsets provide efficiency as high as 90% to enable the higher power density needed for small form factor fast charging adapters. It also uses Renesas' SmartDefender™ smart hiccup technology to help address soft shorts in cables and connectors.

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

特性

  • Supports Qualcomm Quick Charge 3.0 technology High Voltage Dedicated Charging Port (HVDCP) to provide VBUS from 3.6V to 12V in 200mV increments
  • Double-layer cable protection:
    • Secondary side (iW636): Proprietary D+/D- overvoltage protection (OVP) addresses VBUS D+/Dsoft shorts
    • Primary side (iW1782 or iW1780H): SmartDefender™ smart hiccup technology reduces average output power at fault conditions without latch
  • Proprietary secondary-to-primary digital communication eliminates discrete decoders in the primary side and simplifies system designs
  • Single optocoupler transmits all information for rapid charge: Output voltage requests, output current limits, output voltage undershoot (UV), overvoltage protection (OVP), and fault and reset signals
  • Adaptive OVP/UV detection for most VBUS levels
  • Backward compatible with QC2.0 and USB Battery Charging Specification Revision 1.2 (USB BC1.2)
  • Pin-to-pin compatible with iW626
  • Programmable active fast discharge from a high voltage VBUS level to 5V at mobile device unplug or upon request with built-in switch or external switch
  • Normally OFF state with <150µA cut-off current during 5V steady-state operation to achieve <10mW overall system no-load power consumption
  • Wide operating voltage range from 3V to 16V
  • Built-in optocoupler LED driver with a minimum driving current of 2mA

产品对比

应用

设计和开发

模型

ECAD 模块

点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

Diagram of ECAD Models

产品选项

当前筛选条件

支持

支持社区

支持社区

在线询问瑞萨电子工程社群的技术人员,快速获得技术支持。
浏览常见问题解答

常见问题

浏览我们的知识库,了解常见问题的解答。
提交工单

提交工单

需要咨询技术性问题或提供非公开信息吗?