TPS2556

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2556, TPS2557 SLVS931B – NOVEMBER 2009 – REVISED DECEMBER 2016 TPS255x Precision Adjustable Current-Limited Power-Distribution Switches 1 Features 1 Meets USB Current-Limiting Requirements Adjustable Current Limit, 500 mA to 5 A (Typical) ±6.5% Current-Limit Accuracy at 4.5 A Fast Overcurrent Response: 3.5-µs (Typical) 22-mΩ High-Side MOSFET Operating Voltage: 2.5 V to 6.5 V 2-µA Maximum Standby Supply Current Built-in Soft Start 15-kV and 8-kV System-Level ESD Capable UL Listed: File No. E169910 and CB IEC60950-1- am2 ed2.0 2 Applications USB Ports and Hubs Digital TVs Set-Top Boxes VOIP Phones 3 Description 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 500 mA 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. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS2556, TPS2557 VSON (8) 3.00 mm × 3.00 mm (1) For...