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.