Product details

FET Internal Ron (Typ) (mOhm) 6 Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vabsmax_cont (V) 20 Current limit (Min) (A) 1.5 Current limit (Max) (A) 11 Overcurrent response circuit breaker Fault response Auto Retry, Latch Off UL recognition UL2367 (pending)
FET Internal Ron (Typ) (mOhm) 6 Vin (Min) (V) 2.7 Vin (Max) (V) 16 Vabsmax_cont (V) 20 Current limit (Min) (A) 1.5 Current limit (Max) (A) 11 Overcurrent response circuit breaker Fault response Auto Retry, Latch Off UL recognition UL2367 (pending)
VQFN-HR (RPW) 10
  • Wide operating input voltage range: 2.7 V to 16 V
    • 20-V absolute maximum
  • Integrated FET with low On-resistance: RON = 6 mΩ (typ.)
  • Fast overvoltage protection
    • Adjustable overvoltage lockout (OVLO) with 1.2-µs (typ.) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Circuit-breaker response
    • Adjustable threshold (ILIM) 1.5 A–11 A
      • ±10 % accuracy for ILIM > 2 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±10 % (IOUT ≥ 2 A)
  • Fast-trip response for short-circuit protection
    • 640-ns (typ.) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active high enable input with adjustable undervoltage lockout threshold (UVLO)
  • Active low enable input with adjustable undervoltage lockout threshold (OVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Quick Output Discharge
  • Digital outputs
    • Power Good (PG) and fault indication (FLT)

  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
  • Wide operating input voltage range: 2.7 V to 16 V
    • 20-V absolute maximum
  • Integrated FET with low On-resistance: RON = 6 mΩ (typ.)
  • Fast overvoltage protection
    • Adjustable overvoltage lockout (OVLO) with 1.2-µs (typ.) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Circuit-breaker response
    • Adjustable threshold (ILIM) 1.5 A–11 A
      • ±10 % accuracy for ILIM > 2 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±10 % (IOUT ≥ 2 A)
  • Fast-trip response for short-circuit protection
    • 640-ns (typ.) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active high enable input with adjustable undervoltage lockout threshold (UVLO)
  • Active low enable input with adjustable undervoltage lockout threshold (OVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Quick Output Discharge
  • Digital outputs
    • Power Good (PG) and fault indication (FLT)

  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch

The TPS25981xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current (during start-up) or breaking the circuit (during steady-state). The overcurrent protection threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.

The devices are available in a 2-mm × 2-mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

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

The TPS25981xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current (during start-up) or breaking the circuit (during steady-state). The overcurrent protection threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.

The devices are available in a 2-mm × 2-mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

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 TPS25981x 2.7 V–16 V, 10-A, 6-mΩ eFuse with Transient Overcurrent Blanking Timer datasheet PDF | HTML 29 Apr 2022
EVM User's guide TPS25981EVM: Evaluation Module for TPS25981 eFuse (Rev. A) PDF | HTML 21 Jun 2022

Design & development

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Evaluation board

TPS25981EVM — TPS25981 evaluation module for 2.7-V to 16-V, 10-A, 6-mΩ eFuse

The TPS25981EVM eFuse evaluation board allows reference circuit evaluation of TPS25981 eFuse. The TPS25981 device is a 2.7-V to 16-V, 10-A eFuse with integrated 6-mΩ FET with overcurrent, inrush current protection, adjustable overcurrent transient blanking timer, programmable undervoltage and (...)

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Simulation tool

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 (...)
Calculation tool

TPS25981 Design Calculator (Rev. A)

SLVRBL3A.ZIP (2765 KB)
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VQFN-HR (RPW) 10 View options

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