TPS2065 - 单个 1A 限流配电开关，用于 USB 应用领域

TPS2065是TI德州仪器公司的一款固定限流开关产品，TPS2065是单个 1A 限流配电开关，用于 USB 应用领域，本站介绍了TPS2065的封装应用图解、特点和优点、功能等，并给出了与TPS2065相关的TI元器件型号供参考。

TPS2065 - 单个 1A 限流配电开关，用于 USB 应用领域 - 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 TPS206x power-distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device incorporates 70-m N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a 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 device 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1.5 A typically.

产品特性

70-m High-Side MOSFET
1-A Continuous Current
Thermal and Short-Circuit Protection
Accurate Current Limit (1.1 A min, 1.9 A max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
1-µA Maximum Standby Supply Current
Bidirectional Switch
Ambient Temperature Range: -40°C to 85°C
Built-in Soft-Start
UL Listed - File No. E169910
APPLICATIONS
- Heavy Capacitive Loads
- Short-Circuit Protections

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