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TPS25981

ACTIVE

2.7-V to 16-V, 10-A, 6-mΩ eFuse with transient overcurrent blanking timer

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Data sheet

TPS25981

ACTIVE
Data sheet Order now

Product details

FET Internal Ron (typ) (mΩ) 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 Soft start Adjustable Overvoltage response Clamp, Cut-off UL recognition UL2367 (pending) Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.000417 Quiescent current (Iq) (max) (A) 0.00061
FET Internal Ron (typ) (mΩ) 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 Soft start Adjustable Overvoltage response Clamp, Cut-off UL recognition UL2367 (pending) Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.000417 Quiescent current (Iq) (max) (A) 0.00061
VQFN-HR (RPW) 10 4 mm² 2 x 2
  • Wide operating input voltage range: 2.7 V to 16 V
    • 20-V absolute maximum
  • Integrated FET with low on-resistance: R ON = 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 (I LIM) 1.5 A – 11 A
      • ±10% accuracy for I LIM > 5 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × I LIM
    • Output load current monitor accuracy: ±10% (I OUT ≥ 3 A)
  • Fast-trip response for short-circuit protection
    • 640-ns (typ.) response time
    • Adjustable (2 × I LIM) 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)

  • Option to drive external FET for reverse current blocking in disabled/OFF state

  • 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: R ON = 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 (I LIM) 1.5 A – 11 A
      • ±10% accuracy for I LIM > 5 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × I LIM
    • Output load current monitor accuracy: ±10% (I OUT ≥ 3 A)
  • Fast-trip response for short-circuit protection
    • 640-ns (typ.) response time
    • Adjustable (2 × I LIM) 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)

  • Option to drive external FET for reverse current blocking in disabled/OFF state

  • 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 (Rev. B) PDF | HTML 06 Jun 2023
Application brief TPS25981 - Making Power Dense PDF | HTML 02 Jan 2024
Application note How eFuse Ensures Integrated FET Operation in Safe Operating Area PDF | HTML 07 Sep 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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TPS25981 PSpice Transient Model

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eFuses & hot swap controllers
TPS25981 — 2.7-V to 16-V, 10-A, 6-mΩ eFuse with transient overcurrent blanking timer
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