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TPS25961

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2.7-V to 19-V 100-mΩ eFuse with overvoltage, overcurrent and short-circuit protection

Product details

FET Internal Ron (typ) (mΩ) 100 Vin (min) (V) 2.7 Vin (max) (V) 19 Vabsmax_cont (V) 21 Current limit (min) (A) 0.1 Current limit (max) (A) 2 Overcurrent response Current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Overvoltage protection, Soft-start, Thermal shutdown UL recognition UL2367 (pending) Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
FET Internal Ron (typ) (mΩ) 100 Vin (min) (V) 2.7 Vin (max) (V) 19 Vabsmax_cont (V) 21 Current limit (min) (A) 0.1 Current limit (max) (A) 2 Overcurrent response Current limiting Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Overvoltage protection, Soft-start, Thermal shutdown UL recognition UL2367 (pending) Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
WSON (DRV) 6 4 mm² 2 x 2
  • Wide input voltage range: 2.7V to 19V
    • 21-V absolute maximum
  • Low on-resistance: Ron = 106-mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overvoltage protection with a response time of 1.3µs (typical)
    • Fixed internal threshold: 5.98 V (typical)
    • Adjustable threshold using external resistor divider
  • Overcurrent protection:
    • Adjustable current limit threshold: 0.1A to 2A
    • Current limit accuracy:
      • ±20% (typical) across current range
      • ±18% (maximum) at 1.45-A current limit, TA = 25°C
  • Short-circuit protection with a response time of 5µs (typical)
  • Output slew rate control (dVdt): 5.17 V/ms (typical)
  • Overtemperature protection (OTP)
  • Auto-retry after fault
  • Low quiescent current: 130 µA (typical)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: 2 mm × 2 mm SON package
  • Wide input voltage range: 2.7V to 19V
    • 21-V absolute maximum
  • Low on-resistance: Ron = 106-mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overvoltage protection with a response time of 1.3µs (typical)
    • Fixed internal threshold: 5.98 V (typical)
    • Adjustable threshold using external resistor divider
  • Overcurrent protection:
    • Adjustable current limit threshold: 0.1A to 2A
    • Current limit accuracy:
      • ±20% (typical) across current range
      • ±18% (maximum) at 1.45-A current limit, TA = 25°C
  • Short-circuit protection with a response time of 5µs (typical)
  • Output slew rate control (dVdt): 5.17 V/ms (typical)
  • Overtemperature protection (OTP)
  • Auto-retry after fault
  • Low quiescent current: 130 µA (typical)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: 2 mm × 2 mm SON package

The TPS25961 eFuse (integrated FET hot-swap device) is a highly integrated 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, voltage surges, and excessive inrush current. Output current limit level can be set with a single external resistor. Inrush current is managed using output slew rate control internally. To protect an input overvoltage condition, the device provides an option to externally set a user-defined overvoltage cutoff threshold or use a fixed internal threshold.

The devices are characterized for operation over a junction temperature range of –40 °C to +125 °C.

The TPS25961 eFuse (integrated FET hot-swap device) is a highly integrated 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, voltage surges, and excessive inrush current. Output current limit level can be set with a single external resistor. Inrush current is managed using output slew rate control internally. To protect an input overvoltage condition, the device provides an option to externally set a user-defined overvoltage cutoff threshold or use a fixed internal threshold.

The devices are characterized for operation over a junction temperature range of –40 °C to +125 °C.

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Technical documentation

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Type Title Date
* Data sheet TPS25961 2.7-V–19-V, 106-mΩ, eFuse With Adjustable Current Limit and Short-Circuit Protection datasheet PDF | HTML 05 Dec 2022
Application brief Performance, Space, and Cost Optimized Protection Using TPS25961 PDF | HTML 25 Jan 2023
EVM User's guide TPS25961EVM: Evaluation Module for TPS25961 eFuse PDF | HTML 29 Aug 2022
Certificate TPS25961EVM EU RoHS Declaration of Conformity (DoC) 29 Jul 2022

Design & development

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Evaluation board

TPS25961EVM — TPS25961 evaluation module for 2.7-V to 19-V 2-A 100-mΩ eFuse

The TPS25961EVM allows reference circuit evaluation of the TPS25961 eFuse. The TPS25961 device is a 2.7-V to 19-V, 2 A eFuse with integrated 100-mΩ FET with inrush current protection, programmable under voltage, over voltage protection and current limiting.

User guide: PDF | HTML
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Simulation model

TPS25961 PSpice Transient Model (Rev. A)

SLVME07A.ZIP (29 KB) - PSpice Model
Calculation tool

SLVRBM9 TPS25961 Design Calculator

Excel based design calculator to assist in the application of TPS25961 device
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eFuses & hot swap controllers
TPS25961 2.7-V to 19-V 100-mΩ eFuse with overvoltage, overcurrent and short-circuit protection
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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