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電源保護開關與控制器
eFuse（整合式熱插拔）

TPS25981

現行

具有瞬態過流消隱定時器的 2.7-V 至 16-V、10-A、6-mΩ eFuse

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產品規格表

TPS25981

現行
產品規格表 立即訂購

產品詳細資料

Vabsmax_cont (V) 20 Vin (max) (V) 16 Vin (min) (V) 2.7 Current limit (max) (A) 11 Current limit (min) (A) 1.5 Features Adjustable current limit, Adjustable soft start, Overcurrent protection, Overvoltage protection, Quick output discharge, Reverse current blocking when off, Thermal shutdown, adjustable UVLO UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 6 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000417 Quiescent current (Iq) (max) (A) 0.00061 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 20 Vin (max) (V) 16 Vin (min) (V) 2.7 Current limit (max) (A) 11 Current limit (min) (A) 1.5 Features Adjustable current limit, Adjustable soft start, Overcurrent protection, Overvoltage protection, Quick output discharge, Reverse current blocking when off, Thermal shutdown, adjustable UVLO UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 6 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000417 Quiescent current (Iq) (max) (A) 0.00061 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
VQFN-HR (RPW) 10 4 mm² (2 mm × 2 mm)
  • Wide operating input voltage range: 2.7V to 16V
    • 20V absolute maximum
  • Integrated FET with low on-resistance: RON = 6mΩ (typical)
  • Fast overvoltage protection
    • Adjustable overvoltage lockout (OVLO) with 1.2µs (typical) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Circuit-breaker response
    • Adjustable threshold (ILIM) 1.5A – 11A
      • ±10% accuracy for ILIM > 5A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±10% (IOUT ≥ 3A)
  • Fast-trip response for short-circuit protection
    • 640ns (typical) 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)
  • 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
    • File No. E115731
    • RILM ≥ 1.47kΩ
  • IEC 62368-1 CB Certified
  • Small footprint: QFN 2mm × 2mm, 0.45mm pitch
  • Wide operating input voltage range: 2.7V to 16V
    • 20V absolute maximum
  • Integrated FET with low on-resistance: RON = 6mΩ (typical)
  • Fast overvoltage protection
    • Adjustable overvoltage lockout (OVLO) with 1.2µs (typical) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Circuit-breaker response
    • Adjustable threshold (ILIM) 1.5A – 11A
      • ±10% accuracy for ILIM > 5A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±10% (IOUT ≥ 3A)
  • Fast-trip response for short-circuit protection
    • 640ns (typical) 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)
  • 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
    • File No. E115731
    • RILM ≥ 1.47kΩ
  • IEC 62368-1 CB Certified
  • Small footprint: QFN 2mm × 2mm, 0.45mm 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 one 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 2mm × 2mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range from –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 one 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 2mm × 2mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range from –40°C to +125°C.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS25981x 2.7V to 16V, 10A, 6mΩ eFuse with Transient Overcurrent Blanking Timer datasheet (Rev. C) PDF | HTML 2026/5/20
Application brief TPS25981 - Making Power Dense PDF | HTML 2024/1/2
應用說明 How eFuse Ensures Integrated FET Operation in Safe Operating Area PDF | HTML 2022/9/7

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開發板

TPS25981EVM — 適用於 2.7-V 至 16-V、10-A、6-mΩ eFuse 的 TPS25981 評估模組

TPS25981EVM eFuse 評估板允許對 TPS25981 eFuse 進行參考電路評估。TPS25981 裝置為一搭載整合式 6-mΩ FET 及過電流、突波電流防護、可調式過電流瞬態消隱定時器、可編程欠電壓和過電壓防護的 2.7-V 至 16-V、10-A eFuse。

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模擬型號

TPS25981 PSpice Transient Model

SLVMDX3.ZIP (102 KB) - PSpice 模型
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計算工具

SLVRBL3 — TPS25981 Design Calculator

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TVS-RECOMMENDATION-CALC — TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
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VQFN-HR (RPW) 10 Ultra Librarian
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