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TPS25921LDR +BOM

Efficiently Manages Power with Electronic Fuse

TPS25921LDR General Description

The eFuse is built with multiple programmable protection features, including overcurrent, overvoltage, and undervoltage safeguards, ensuring the safety of loads, sources, and devices. With a 3% threshold accuracy for undervoltage and overvoltage supervision, the TPS25921 eliminates the need for additional supervisor circuitry. Additionally, a fault flag output (FLT) allows for real-time system status monitoring and downstream load control

Key Features

  • 4.5 V – 18 V Operating Voltage, 20 V (Max)
  • 90 mΩ RDS(ON) (Typical)
  • 0.4 A to 1.6 A Adjustable Current Limit
  • ±2% Accurate ILIMIT at 1A at 25°C
  • ±3% Overvoltage, Undervoltage Threshold
  • Programmable dVO/dt Control
  • Fault Output for Thermal Shutdown, UVLO and
    OVP
  • –40°C to 125°C Junction Temperature Range
  • Auto-Retry and Latch-Off Versions
  • UL2367 Recognized - File No. E169910
  • UL60950 - Safe during Single Point Failure Test

Specifications

FET Internal Ron (typ) (mΩ) 90
Vin (min) (V) 4.5 Vin (max) (V) 18
Vabsmax_cont (V) 20 Current limit (min) (A) 0.4
Current limit (max) (A) 1.6 Overcurrent response current limiting
Fault response Latch-off Soft start Adjustable
Overvoltage response Cut-off Features Fault output
UL recognition UL2367, UL60950 Rating Catalog
Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown

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