TPS2080 - 0.7A 2.7 至 5.5V 双路（2 输入/2 输出）高侧 MOSFET 开关 IC，具有故障报告功能，2 个高电平有效启用

TPS2080是TI德州仪器公司的一款电压与电流限制保护产品，TPS2080是0.7A 2.7 至 5.5V 双路（2 输入/2 输出）高侧 MOSFET 开关 IC，具有故障报告功能，2 个高电平有效启用，本站介绍了TPS2080的封装应用图解、特点和优点、功能等，并给出了与TPS2080相关的TI元器件型号供参考。

TPS2080 - 0.7A 2.7 至 5.5V 双路（2 输入/2 输出）高侧 MOSFET 开关 IC，具有故障报告功能，2 个高电平有效启用 - 电压与电流限制保护 - 集成负载开关 - 德州仪器

产品描述

The TPS2080, TPS2081, and TPS2082 dual and the TPS2085, TPS2086 and TPS2087 quad power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered.

The TPS208x devices incorporate 80-m N-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by an independent logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the TPS208x limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present. The TPS208x devices are designed to current limit at 1.0-A load.

产品特性

80-m High-Side MOSFET Switch
500 mA Continuous Current per Channel
Independent Thermal and Short-Circuit Protection With Overcurrent Logic Output
Operating Range: 2.7-V to 5.5-V
CMOS- and TTL-Compatible Enable Inputs
2.5-ms Typical Rise Time
Undervoltage Lockout
10 µA Maximum Standby Supply Current
Bidirectional Switch
Available in 8-Pin and 16-Pin SOIC Packages
Ambient Temperature Range, 0°C to 85°C
ESD Protection

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