1 Features

• Input operating voltage range: 4.5 V to 16 V

– 20-V absolute maximum

– Withstands negative voltages up to –1 V at

output

• Integrated FET with ultra-low on-resistance: 0.59

mΩ (typ.)

• Rated for continuous current of 55 A and peak

current of 70 A

• Supports parallel connection of multiple eFuses for

higher current support

– Active device state synchronization and load

sharing during start-up and steady-state

• Robust overcurrent protection

– Adjustable overcurrent threshold (IOCP): 10 A to

60 A with accuracy of ±5

– Circuit-breaker response during steady state

operation with adjustable transient overcurrent

timer (ITIMER) to support peak currents up to 2

× IOCP

– Adjustable active current limit during start-up

(ILIM)

• Robust short-circuit protection

– Fast-trip response (200 ns) to output shortcircuit

events

– Adjustable threshold (2 × IOCP)

– Immune to supply line transients — no

nuisance tripping

• Precise load current monitoring

– < 2.1 error over 50–100 of maximum

current

– > 500-kHz bandwidth

• Fast overvoltage protection (fixed 16.6-V

threshold)

• Adjustable output slew rate control (dVdt) for

inrush current protection

• Active high enable input with adjustable

undervoltage lockout (UVLO)

• Overtemperature Protection (OTP) to ensure FET

SOA

– Guaranteed FET SOA: 12 W√s

• Integrated FET health monitoring and reporting

• Analog die temperature monitor output (TEMP)

• Dedicated fault indication pin (FLT)

• Power Good indication pin (PG)

• Uncommitted general purpose fast comparator

• Small footprint: QFN 4.5-mm × 5-mm, 0.6-mm

pitch

– 29-mil clearance between power and GND pins

2 Applications

• Input hotswap and hotplug

• Server and High performance computing

• Network interface cards

• Graphics and Hardware accelerator cards

• Datacenter switches and Routers

• Fan trays

3 Description

The TPS25985x is an integrated, high-current 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, and

excessive inrush current.

Applications with particular inrush current

requirements can set the output slew rate with a

single external capacitor. Output current limit level

can be set by user as per system needs. A user

adjustable overcurrent blanking timer allows systems

to support transient peaks in the load current without

tripping the eFuse.