TPS25984x 4.5 V – 16 V, 0.8-mΩ, 70-A Stackable eFuse With Accurate and Fast Current Monitor

1 Features

Input operating voltage range: 4.5 V to 16 V
- Absolute maximum: 20 V
- Withstands negative voltages up to –1 V at output
Integrated FET with ultra-low on-resistance: 0.8 mΩ (typical)
Rated for RMS 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 (I_OCP): 10 A to 55 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 × I_OCP
- Adjustable active current limit during start-up (I_LIM)
Robust short-circuit protection
- Fast-trip response (< 200 ns) to output short-circuit events
- Adjustable threshold (2 × I_OCP)
- Immune to supply line transients — no nuisance tripping
Precise analog load current monitoring
- Accuracy: ±1.4 %
- Bandwidth: > 500 kHz
Fast overvoltage protection (fixed 16.7-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: 10 W√s
Integrated FET health monitoring and reporting
Analog die temperature monitor output (TEMP)
Dedicated fault indication pin (FLT)
Power-Good indication pin (PG)
Small footprint: QFN 5 mm × 5 mm
100% Pb free