Home Power management Power switches eFuses & hot swap controllers
Home
Power management
Power switches
eFuses & hot swap controllers

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

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
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
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.

open-in-new Find other eFuses & hot swap controllers
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

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
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

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
Not available on TI.com
Simulation model

TPS25210x PSpice Transient Model

SLVMDK0.ZIP (117 KB) - PSpice Model
Download
Calculation tool

SLVRBH7 — TPS25210 Design Calculator

Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
TPS2521 — 2.7-V to 5.7-V, 31-mΩ, 4-A eFuse with integrated reverse polarity protection
Download
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

Supported products & hardware

This design resource supports most products in these categories.

Check the product details page to verify support.
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins Download
VQFN-HR (RPW) 10 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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