TI TPS2556DRBT

通用1不需要5A

Overview

The TPS255x power-distribution switch is 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 500mA and 5 A (typical) through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.

TPS255x 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 overtemperature conditions.

Features

• 3.5-pS Fast Overcurrent Response (typ)

• High-side MOSFET of 22 mQ

• Working Voltage: 2.5 to 6.5 V

• Maximum Standby Supply Current of 2 pA

• Integrated Soft-Start

• System-Level ESD Capable at 15 kV and 8 kV

• UL Listed* - E169910 File No.

• Nemko & CB Certification*

Applications

• USB ports and hub

• "Digital TV"

• Setting-Top Boxes

• VOIP Telephones