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電源保護開關與控制器
eFuse（整合式熱插拔）

TPS2521

現行

具有整合式反向極性保護的 2.7-V 至 5.7-V、31-mΩ、4-A eFuse

立即訂購
產品規格表

TPS2521

現行
產品規格表 立即訂購

產品詳細資料

Vabsmax_cont (V) 28 Vin (max) (V) 5.7 Vin (min) (V) 2.7 Current limit (max) (A) 4.44 Current limit (min) (A) 0.5 Features Adjustable soft start, Analog current monitor, Fault output, Input reverse polarity protection, Overvoltage clamping, Power good signal, Reverse current blocking always, Thermal shutdown, adjustable UVLO UL recognition IEC62368, UL2367 Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 31 Overvoltage response Clamp Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000411 Quiescent current (Iq) (max) (A) 0.000593 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 28 Vin (max) (V) 5.7 Vin (min) (V) 2.7 Current limit (max) (A) 4.44 Current limit (min) (A) 0.5 Features Adjustable soft start, Analog current monitor, Fault output, Input reverse polarity protection, Overvoltage clamping, Power good signal, Reverse current blocking always, Thermal shutdown, adjustable UVLO UL recognition IEC62368, UL2367 Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 31 Overvoltage response Clamp Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000411 Quiescent current (Iq) (max) (A) 0.000593 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: 2.7 V to 5.7 V
  • 28-V absolute maximum
  • Withstands negative voltages up to –15 V
  • Integrated back-to-back FETs with low on-resistance: RON = 31 mΩ (typ.)
  • Ideal diode operation with true reverse current blocking
  • Fast overvoltage clamp (OVC) with pin-selectable threshold (3.8 V, 5.7 V) with 5-µs (typ.) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Active current limit response
    • Adjustable threshold (ILIM) 0.5 A–4.44 A
      • ±10% accuracy for ILIM > 1 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±6% (IOUT ≥ 1 A)
  • Fast-trip response for short-circuit protection
    • 500-ns (typ.) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active High Enable input with adjustable undervoltage lockout threshold (UVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Power Good indication (PG) with adjustable threshold (PGTH)
  • UL 2367 recognition
    • File No. E169910
    • RILM ≥ 750 Ω
  • IEC 62368-1 CB certified
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
  • Wide operating input voltage range: 2.7 V to 5.7 V
  • 28-V absolute maximum
  • Withstands negative voltages up to –15 V
  • Integrated back-to-back FETs with low on-resistance: RON = 31 mΩ (typ.)
  • Ideal diode operation with true reverse current blocking
  • Fast overvoltage clamp (OVC) with pin-selectable threshold (3.8 V, 5.7 V) with 5-µs (typ.) response time
  • Overcurrent protection with load current monitor output (ILM)
    • Active current limit response
    • Adjustable threshold (ILIM) 0.5 A–4.44 A
      • ±10% accuracy for ILIM > 1 A
    • Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
    • Output load current monitor accuracy: ±6% (IOUT ≥ 1 A)
  • Fast-trip response for short-circuit protection
    • 500-ns (typ.) response time
    • Adjustable (2 × ILIM) and fixed thresholds
  • Active High Enable input with adjustable undervoltage lockout threshold (UVLO)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Power Good indication (PG) with adjustable threshold (PGTH)
  • UL 2367 recognition
    • File No. E169910
    • RILM ≥ 750 Ω
  • IEC 62368-1 CB certified
  • Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch

The TPS2521x 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, reverse polarity and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the device well suited for systems which need load side energy hold up storage in case input power supply fails.

Output current limit level can be set with a single external resistor. It is also possible to get an accurate sense of the output load current by measuring the voltage drop across the current limit resistor.

Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Loads are protected from input overvoltage conditions by clamping the output to a safe fixed maximum voltage (pin selectable).

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 TPS2521x 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, reverse polarity and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the device well suited for systems which need load side energy hold up storage in case input power supply fails.

Output current limit level can be set with a single external resistor. It is also possible to get an accurate sense of the output load current by measuring the voltage drop across the current limit resistor.

Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Loads are protected from input overvoltage conditions by clamping the output to a safe fixed maximum voltage (pin selectable).

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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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 TPS2521xx, 2.7-V–5.7-V, 4-A, 31-mΩ True Reverse Current Blocking eFuse with Input Reverse Polarity Protection datasheet (Rev. A) PDF | HTML 2022/3/29
證書 TPS25210x CB Test Certificate IEC 62368-1 2022/1/19
證書 TPS25210x UL2367 Certificate of Compliance E169910 2022/1/19

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開發板

TPS25210EVM — 適用於 eFuse 的 TPS25210 評估模組

TPS25210EVM eFuse 評估板可對德州儀器 TPS25210 eFuse 進行參考電路評估。TPS25210 裝置是一款 2.7-V 至 5.7-V、4-A eFuse，具有整合 31-mΩ FET 和反向電流保護、輸入反極性保護、過電流、突波電流保護、可調式過電流瞬態消隱定時器、可編程欠電壓與過電壓保護。

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TPS25210x PSpice Transient Model

SLVMDK0.ZIP (117 KB) - PSpice 模型
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SLVRBH7 — TPS25210 Design Calculator

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