WMSIC Electronic Components

WCH CH634X

ModelCH634X
PackageQFN-68(8x8)
BrandWCH
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Option 175468

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
WCH CH634X
Type
WCH
Minimum package
260 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WCH
Electronic Component
CH634X
Electronic Component
1
Package
QFN-68(8x8)
Electronic Component
USB Hub
Electronic Component
1.489g
Electronic Component
1
Channel Count
4
Features
Regulator; Power Supply Switch; PD; positions;; BC1.2
Electronic Component
BM0264993128
Operating Temperature
40℃~+85℃
Operating Voltage
3.3V;1.23V
Data
5Gbps
USB
USB 3.2
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CH634X 产品概述

一、产品简介

CH634X是WCH(南京沁恒)面向高性能多端口扩展的USB超高速HUB控制器,完全符合USB3.2 Gen1(USB3.0)规范,支持5Gbps数据速率。芯片内置两组Type‑C双通道USB3.0 PHY和双PD PHY,原生支持Type‑C正反插自适应与PD协议,能实现PDHUB、Type‑C 15W与PD 100W等快充方案,适用于桌面扩展坞、多口充电器、工业与车载系统等。

二、主要特性

  • 支持USB3.2 Gen1规范,单通道速率最高5Gbps,向下兼容USB2.0/1.1设备。
  • 四端口USB数据通道设计(通道数:4),满足多设备并联需求。
  • 内置两组Type‑C双通道USB3.0 PHY及双PD PHY,原生支持Type‑C正反插自适应。
  • 支持PD协议与PDHUB拓展,配合外部电源器件可实现Type‑C 15W与PD 100W快充。
  • 支持BC1.2充电检测协议,方便兼容多种充电设备。
  • 集成内部稳压器、端口电源开关控制、上电复位(POR)与过流保护,提升系统可靠性。

三、电气与环境参数

  • 工作电压:3.3V 与 1.23V(典型),便于与主机与PHY域电源配合。
  • 工作温度范围:-40℃ ~ +85℃,满足工业级环境要求。
  • 封装形式:QFN‑68 (8x8),利于高密度PCB布局与散热处理。

四、功能优势与应用场景

CH634X在功能集成度与电源管理方面具有明显优势,适合用于:

  • 笔记本/平板扩展坞与USB集线器;
  • 多口Type‑C/USB充电器与PD快充方案;
  • 工业控制、POS、车载娱乐等需多口数据与电源管理场景。
    集成PHY与PD功能可减小外部器件数量,降低BOM并简化系统设计。

五、设计要点与建议

  • PCB高速差分对需严格控制阻抗并保证信号完整性,USB3.0线路长度与匹配需注意。
  • QFN‑68封装建议加焊盘接地大热沉,配合充分的旁路与去耦电容以保证稳压器与PHY稳定。
  • Type‑C接口侧建议加入必要的ESD/浪涌保护元件与过流熔断器件,配合芯片的端口电源开关与过流保护实现可靠电源管理。
  • PD快充实现时,应根据功率等级选配合适的电源转换器与保护策略,确保热管理与安全性。

六、品牌与支持

CH634X由WCH(南京沁恒)提供,适合需要高集成度、工业级温度范围与丰富电源管理特性的多端口USB解决方案。欲获取评估板、应用笔记或详细参考电路,请联系WCH技术支持或授权分销商。

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