LM3525 - 单端口 USB 电源开关和过流保护

LM3525是TI德州仪器公司的一款固定限流开关产品，LM3525是单端口 USB 电源开关和过流保护，本站介绍了LM3525的封装应用图解、特点和优点、功能等，并给出了与LM3525相关的TI元器件型号供参考。

LM3525 - 单端口 USB 电源开关和过流保护 - 固定限流开关 - USB电源和充电端口控制器 - 德州仪器

产品描述

The LM3525 provides Universal Serial Bus standard power switch and over-current protection for all host port applications. The single port device is ideal for Notebook PC and Handheld PC applications that supply power to one port.

A 1 ms delay on fault flag output prevents erroneous overcurrent reporting caused by inrush currents during the hot-plug events.

The LM3525 accepts an input voltage between 2.7V and 5.5V allowing use as a device-based inrush current limiter for 3.3V USB peripherals, as well as Root and Self-Powered Hubs at 5.5V. The Enable input accepts both 3.3V and 5.0V logic thresholds.

The small size, low RON, and 1 ms fault flag delay make the LM3525 a good choice for root hubs as well as ganged power control in space-critical self-powered hubs.

产品特性

Compatible with USB1.1 and USB 2.0
1 ms Fault Flag Delay During Hot-Plug Events
Smooth Turn-On Eliminates Inrush Induced Voltage Drop
UL Recognized Component: REF # 205202
1A Nominal Short Circuit Output Current Protects Notebook PC Power Supplies
Thermal Shutdown Protects Device in Direct Short Condition
500mA Minimum Continuous Load Current
Small SOIC-8 Package Minimizes Board Space
2.7V to 5.5V Input Voltage Range
Switch Resistance ≤ 120 m? Max. at VIN = 5V
1µA Max Standby Current
100 µA Max Operating Current
Undervoltage Lockout (UVLO)

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