1 Features

? Wide input voltage range: 2.7 V to 19 V

– 21-V absolute maximum

? Low on-resistance: Ron = 106 -mΩ (typical)

? Active high enable input with adjustable

undervoltage lockout (UVLO)

? Overvoltage protection with a response time of 1.3

μs (typical)

– Fixed internal threshold: 5.98 V (typical)

– Adjustable threshold using external resistor

divider

? Overcurrent protection:

– Adjustable current limit threshold: 0.1 A to 2 A

– Current limit accuracy:

? ±20 (typical) across current range

? ±18 (maximum) at 1.45-A current limit, TA

= 25°C

? Short-circuit protection with a response time of 5

μs (typical)

? Output slew rate control (dVdt): 5.17 V/ms (typical)

? Overtemperature protection (OTP)

? Auto-retry after fault

? Low quiescent current: 130 μA (typical)

? UL 2367 recognition (pending)

? IEC 62368 CB certification (pending)

? Small footprint: 2 mm × 2 mm SON package

2 Applications

? Adapter input protection

? Energy meters

? Smart speakers

? Wireless Earbud chargers

? Set-top boxes

? IP network cameras

3 Description

The TPS25961 eFuse (integrated FET hot-swap

device) is a highly integrated circuit protection and

power management solution in a small package. The

device provides multiple protection modes using very

few external components and is a robust defense

against overloads, short-circuits, voltage surges, and

excessive inrush current. Output current limit level can

be set with a single external resistor. Inrush current

is managed using output slew rate control internally.

To protect an input overvoltage condition, the device

provides an option to externally set a user-defined

overvoltage cutoff threshold or use a fixed internal

threshold.

The devices are characterized for operation over a

junction temperature range of –40 °C to +125 °C.