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BQ24392是一款具有充电器检测功能的双路单刀单掷(SPST)USB2.0高速隔离开关，可与micro-USB和mini-USB端口搭配使用。此篇主要介绍了BQ24392特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。

BQ24392特性：USB2.0高速开关；–2V至28VVBUS电压范围；静电放电(ESD)性能经测试符合JESD22规范；±8kV接触放电(IEC61000-4-2)

BQ24392典型应用范围：移动电话；智能手机；摄像机；GPS系统

BQ24392参考设计应用电路：

图1BQ24392内部结构图

TheBQ24392 is a USB 2.0 high-speed isolation switch with charger detection capabilities for use with micro and mini-USB ports. Upon plugin of a Battery Charging Specification 1.2 (BCv1.2) compliant, Apple™, TomTom™, or other USB charger into a micro or mini-USB connector, the device will automatically detect the charger and operate the USB 2.0 high-speed isolation switch.

图2BQ24392参考设计图

TheBQ24392 is a dual single-pole single-throw (SPST) USB 2.0 high-speed isolation switch with charger detection capabilities for use with micro and mini-USB ports. This USB switch allows mobile phones, tablets, and other battery operated electronics to be charged from different adapters with minimal system software.

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