Home Power management Power protection switches & controllers eFuses (integrated hot swaps)

TPS25924

ACTIVE

4.5-V to 13.8-V, 28mΩ, 1-5A eFuse with driver for external blocking FET

Product details

Vabsmax_cont (V) 20 Vin (max) (V) 13.8 Vin (min) (V) 4.5 Current limit (max) (A) 5 Current limit (min) (A) 1 Features Adjustable current limit, Adjustable soft start, Overcurrent protection, Overvoltage protection, Reverse current blocking when off, Short-circuit protection, adjustable UVLO UL recognition UL2367, UL60950 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 28 Overvoltage response Clamp Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00042 Quiescent current (Iq) (max) (A) 0.00055 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
Vabsmax_cont (V) 20 Vin (max) (V) 13.8 Vin (min) (V) 4.5 Current limit (max) (A) 5 Current limit (min) (A) 1 Features Adjustable current limit, Adjustable soft start, Overcurrent protection, Overvoltage protection, Reverse current blocking when off, Short-circuit protection, adjustable UVLO UL recognition UL2367, UL60950 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 28 Overvoltage response Clamp Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00042 Quiescent current (Iq) (max) (A) 0.00055 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
VSON (DRC) 10 9 mm² (3 mm × 3 mm)
  • VOPERATING = 4.5 V to 13.8 V, VABSMAX = 20 V
  • Integrated 28-mΩ Pass MOSFET
  • Fixed 15-V Over Voltage Clamp
  • 1-A to 5-A Adjustable ILIMIT
  • ±8% ILIMIT Accuracy at 3.7 A
  • 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 × 3 mm) VSON
  • VOPERATING = 4.5 V to 13.8 V, VABSMAX = 20 V
  • Integrated 28-mΩ Pass MOSFET
  • Fixed 15-V Over Voltage Clamp
  • 1-A to 5-A Adjustable ILIMIT
  • ±8% ILIMIT Accuracy at 3.7 A
  • 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 × 3 mm) VSON

The TPS25924x 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, voltage surges, excessive inrush current, and reverse current.

Current limit level can be set with a single external resistor. Over voltage events are limited by internal clamping circuits to a safe fixed maximum, with no external components required.

Applications with particular voltage ramp requirements can set dV/dT 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 TPS25924x output and the gate driven by BFET to prevent current flow from load to source.

The TPS25924x 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, voltage surges, excessive inrush current, and reverse current.

Current limit level can be set with a single external resistor. Over voltage events are limited by internal clamping circuits to a safe fixed maximum, with no external components required.

Applications with particular voltage ramp requirements can set dV/dT 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 TPS25924x output and the gate driven by BFET to prevent current flow from load to source.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS25924x 12-V eFuse with Over Voltage Protection and Blocking FET Control datasheet (Rev. B) PDF | HTML Sep 2, 2016
Certificate TPS2592x CB Test Certificate IEC 62368-1 Jul 8, 2021
Certificate UL Certificate of Compliance UL 2367 Apr 10, 2020
Certificate TPS2592x UL Certificate of Compliance IEC 60950-1 Apr 10, 2020
Functional safety information eFuse: Safety Certification and why it Matters Mar 18, 2020
E-book 11 Ways to Protect Your Power Path Jul 3, 2019
Application note Backplane Power Protection in PLC Systems Jun 11, 2019
Application note Basics of eFuses (Rev. A) Apr 5, 2018
Technical article How adding an eFuse will protect your brand’s reputation PDF | HTML Jun 21, 2017
Technical article Don’t leave it floating! Power off your outputs with quick output discharge PDF | HTML Dec 9, 2016
Application note Achieve 20-A Circuit Protection and Space Efficiency Using Paralleled eFuses Nov 3, 2016
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 3/3 PDF | HTML Jun 2, 2016
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 1/3 PDF | HTML May 10, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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Simulation model

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VSON (DRC) 10 Ultra Librarian

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