Home Power management Power protection switches & controllers eFuses (integrated hot swaps)
Home
Power management
Power protection switches & controllers
eFuses (integrated hot swaps)

TPS2521

ACTIVE

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

Order now
Data sheet

TPS2521

ACTIVE
Data sheet Order now

Product details

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.

filter Find other eFuses (integrated hot swaps)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device.
TPS25947 ACTIVE 2.7-V to 23-V, 28-mΩ, 5.5-A eFuse with integrated reverse polarity protection Footprint compatible at wider voltage and current range.

Technical documentation

No results found. Please clear your search and try again.
View all 3
Top documentation Type Title Format options 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 Mar 29, 2022
Certificate TPS25210x CB Test Certificate IEC 62368-1 Jan 19, 2022
Certificate TPS25210x UL2367 Certificate of Compliance E169910 Jan 19, 2022

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS25210EVM — TPS25210 evaluation module for eFuse

The TPS25210EVM eFuse Evaluation Board allows reference circuit evaluation of Texas Instruments TPS25210 eFuse. The TPS25210 device is a 2.7-V to 5.7-V, 4-A eFuse with integrated 31-mΩ FET with reverse current protection, input reverse polarity protection, over current, inrush current (...)

User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Simulation model

TPS25210x PSpice Transient Model

SLVMDK0.ZIP (117 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVRBH7 — TPS25210 Design Calculator

Supported products & hardware
Calculation tool

TVS-RECOMMENDATION-CALC — TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RPW) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos