MAX1812 - 双路、USB开关，带有故障屏蔽

MAX1812是Maxim美信半导体公司的一款USB产品产品，MAX1812是双路、USB开关，带有故障屏蔽，本站介绍了MAX1812的封装应用图解、特点和优点、功能等，并给出了与MAX1812相关的Maxim元器件型号供参考。

MAX1812 - 双路、USB开关，带有故障屏蔽 - USB产品 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1812 is a dual current-limited switch specifically made for USB applications. Each channel is guaranteed to supply 500mA and meets USB specifications. The MAX1812's low quiescent supply current (45µA) and shutdown current (3µA) conserve battery power in portable applications.

The MAX1812 has multiple safety features to ensure that the USB port is protected. Built-in thermal-overload protection limits power dissipation and junction temperature. The device also has accurate internal current-limiting circuitry to protect the input supply against both overload and short-circuit conditions. Independent fault signals (active-low FAULTA and active-low FAULTB) notify the microprocessor when a thermal-overload, current limit, undervoltage lockout, or short-circuit fault occurs. A 20ms fault-blanking feature enables the circuit to ignore momentary faults, such as those caused when hot-swapping a capacitive load, thereby preventing false alarms to the host system.

The MAX1812 is available in a space-saving 10-pin µMAX package. For single versions of this device, refer to the MAX1693, MAX1694, and MAX1607 data sheets.

关键特性

以下关键特性由Maxim美信半导体提供：

Dual USB Switch in Tiny 10-Pin µMAX Package

Guaranteed 500mA Load per Channel

Built-In 20ms Fault Blanking

Compliant to USB Specifications

+4.0V to +5.5V Input Voltage Range

45µA Quiescent Current

3µA Shutdown Current

Independent Shutdown Control

Independent active-low FAULT Indicator Outputs

Thermal-Overload Protection

热门应用

计算机：台式机、工作站和服务器

坞站

笔记本电脑

PDA与掌上电脑

USB集线器

USB端口

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