TPS25927 18V, 5A, 28mΩ eFuse with BFET Driver for Reverse Current Protection | TI.com

TPS25927 (ACTIVE)

18V, 5A, 28mΩ eFuse with BFET Driver for Reverse Current Protection

 

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Description

The TPS25927x family of eFuses is a highly integrated circuit protection and power management solution in a tiny package. The devices use few external components and provide multiple protection modes. They are a robust defense against overloads, shorts circuits, excessive inrush current, and reverse current.

Current limit level can be set with a single external resistor. Applications with particular voltage ramp requirements can set dV/dT pin with a single capacitor to ensure proper output ramp rates.

Many systems, such as SSDs, must not allow holdup capacitance energy to dump back through the FET body diode onto a drooping or shorted input bus. The BFET pin is for such systems. An external NFET can be connected “Back to Back (B2B)” with the TPS25927x output and the gate driven by BFET to prevent current flow from load to source.

Features

  • 4.5-V to 18-V Protection
  • Integrated 28-mΩ Pass MOSFET
  • Absolute Maximum Voltage of 20 V
  • 1-A to 5-A Adjustable ILIMIT
  • ±8% ILIMIT Accuracy at 3.7A
  • Reverse Current Blocking Support
  • Programmable OUT Slew Rate, UVLO
  • Built-in Thermal Shutdown
  • UL 2367 Recognized – File No. E339631*
    • *RILIM ≤ 130 kΩ (5 A maximum)
  • Safe During Single Point Failure Test (UL60950)
  • Small Foot Print – 10L (3 mm x 3 mm) VSON

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Parametrics

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Part number Order Number of channels (#) FET Vin (Min) (V) Vin (Max) (V) Imax (A) Vabsmax_cont (V) Current limit (Min) (A) Current limit (Max) (A) Features Overcurrent response Current limit type UL recognition Fault response Current limit function enabled Ron (Typ) (mOhm) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS259270 Order now 1     Internal     4.5     18     5     20     1     5     Analog Current Monitor     Current Limiting     Adjustable     Yes     Latch Off     Always     28     Catalog     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)    
TPS259271 Order now 1     Internal     4.5     18     5     20     1     5     Analog Current Monitor     Current Limiting     Adjustable     Yes     Auto Retry     Always     28     Catalog     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)