TPS2556 - 精密可调节限流配电开关

TPS2556是TI德州仪器公司的一款精密可调节限流开关产品，TPS2556是精密可调节限流配电开关，本站介绍了TPS2556的封装应用图解、特点和优点、功能等，并给出了与TPS2556相关的TI元器件型号供参考。

TPS2556 - 精密可调节限流配电开关 - 精密可调节限流开关 - USB电源和充电端口控制器 - 德州仪器

产品描述

The TPS2556/57 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5.0 A (typ) via an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.

TPS2556/57 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and over temperature conditions.

产品特性

Meets USB Current-Limiting Requirements
Adjustable Current Limit, 500 mA–5 A (typ)
+/- 6.5% Current-Limit Accuracy at 4.5 A
Fast Overcurrent Response - 3.5-µS (typ)
22-mΩ High-Side MOSFET
Operating Range: 2.5 V to 6.5 V
2-µA Maximum Standby Supply Current
Built-in Soft-Start
15 kV / 8 kV System-Level ESD Capable
UL Listed* – File No. E169910
CB & Nemko Certification*
*RILIM ≥ 24.9 kΩ (5A maximum)

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