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TPS2521

ACTIVE

2.7-V to 5.7-V, 31-mΩ, 4-A eFuse with integrated reverse polarity protection

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Data sheet

TPS2521

ACTIVE
Data sheet Order now

Product details

FET Internal Ron (typ) (mΩ) 31 Vin (min) (V) 2.7 Vin (max) (V) 5.7 Vabsmax_cont (V) 28 Current limit (min) (A) 0.5 Current limit (max) (A) 4.44 Overcurrent response current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Clamp Features Analog current monitor, Fault output, Input reverse polarity protection, Overvoltage clamping, Power good signal, Reverse current blocking always, Thermal shutdown UL recognition IEC62368, UL2367 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, Reverse current blocking, Reverse polarity protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.000411 Quiescent current (Iq) (max) (A) 0.000593
FET Internal Ron (typ) (mΩ) 31 Vin (min) (V) 2.7 Vin (max) (V) 5.7 Vabsmax_cont (V) 28 Current limit (min) (A) 0.5 Current limit (max) (A) 4.44 Overcurrent response current limiting Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Clamp Features Analog current monitor, Fault output, Input reverse polarity protection, Overvoltage clamping, Power good signal, Reverse current blocking always, Thermal shutdown UL recognition IEC62368, UL2367 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, Reverse current blocking, Reverse polarity protection, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.000411 Quiescent current (Iq) (max) (A) 0.000593
VQFN-HR (RPW) 10 4 mm² 2 x 2
  • 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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Type Title Date
* Data sheet 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 29 Mar 2022
Certificate TPS25210x CB Test Certificate IEC 62368-1 19 Jan 2022
Certificate TPS25210x UL2367 Certificate of Compliance E169910 19 Jan 2022
EVM User's guide TPS25210EVM: Evaluation Module for TPS25210 eFuse PDF | HTML 31 Mar 2021

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TPS25210EVM — TPS25210 evaluation module for eFuse

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TPS2521 — 2.7-V to 5.7-V, 31-mΩ, 4-A eFuse with integrated reverse polarity protection
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