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eFuses (integrated hot swaps)

TPS2596

ACTIVE

2.7-V to 19-V, 85mΩ, 0.13-2A eFuse with selectable over voltage protection clamp in leaded package

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Data sheet

TPS2596

ACTIVE
Data sheet Order now

Product details

Vabsmax_cont (V) 21 Vin (max) (V) 19 Vin (min) (V) 2.7 Current limit (max) (A) 2 Current limit (min) (A) 0.125 Features Adjustable OVLO, Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Thermal shutdown UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 89 Overvoltage response Clamp, Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000193 Quiescent current (Iq) (max) (A) 0.000259 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 21 Vin (max) (V) 19 Vin (min) (V) 2.7 Current limit (max) (A) 2 Current limit (min) (A) 0.125 Features Adjustable OVLO, Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Thermal shutdown UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 89 Overvoltage response Clamp, Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000193 Quiescent current (Iq) (max) (A) 0.000259 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Wide input voltage range: 2.7-V to 19-V
    • 21-V Absolute maximum
  • Low On-Resistance: Ron = 89-mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overvoltage protection options available:
    • Fast overvoltage clamp (3.8-V, 5.7-V and 13.8-V pin-selectable thresholds) with a response time of 5-µs (typical)
    • Adjustable overvoltage lockout (OVLO) with a response time of 1.3-µs (typical)
  • Adjustable current limit with load current monitor output (ILM)
    • Current range: 0.125-A to 2-A
    • Current limit accuracy:
      • ±10.4 % (maximum) across current range
      • ±5.5 % (maximum) at 1-A current limit
  • Immune to Electrical Fast Transients (IEC 61000-4-4)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection (OTP)
  • Fault indication pin (FLT)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: 4.91 mm x 3.9 mm SOIC package
  • Wide input voltage range: 2.7-V to 19-V
    • 21-V Absolute maximum
  • Low On-Resistance: Ron = 89-mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overvoltage protection options available:
    • Fast overvoltage clamp (3.8-V, 5.7-V and 13.8-V pin-selectable thresholds) with a response time of 5-µs (typical)
    • Adjustable overvoltage lockout (OVLO) with a response time of 1.3-µs (typical)
  • Adjustable current limit with load current monitor output (ILM)
    • Current range: 0.125-A to 2-A
    • Current limit accuracy:
      • ±10.4 % (maximum) across current range
      • ±5.5 % (maximum) at 1-A current limit
  • Immune to Electrical Fast Transients (IEC 61000-4-4)
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection (OTP)
  • Fault indication pin (FLT)
  • UL 2367 recognition (pending)
  • IEC 62368 CB certification (pending)
  • Small footprint: 4.91 mm x 3.9 mm SOIC package

The TPS2596xx family of eFuses (integrated FET hot-swap devices) 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 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. For the TPS25962x variants, in case of an input overvoltage condition, internal clamping circuits limit the output to a safe fixed maximum voltage (pin selectable), with no external components. The TPS25963x variants provide an option to set a user-defined overvoltage cutoff threshold.

The devices are characterized for operation over a junction temperature range of –40 °C to +125 °C.

The TPS2596xx family of eFuses (integrated FET hot-swap devices) 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 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. For the TPS25962x variants, in case of an input overvoltage condition, internal clamping circuits limit the output to a safe fixed maximum voltage (pin selectable), with no external components. The TPS25963x variants provide an option to set a user-defined overvoltage cutoff threshold.

The devices are characterized for operation over a junction temperature range of –40 °C to +125 °C.

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Technical documentation

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Type Title Date
* Data sheet TPS2596 2.7 to 19 V, 0.125 to 2-A, 89-mΩ eFuse With Accurate Current Monitor and Fast Overvoltage Protection datasheet (Rev. A) PDF | HTML 20 Aug 2019
Application brief eFuses in Smart Electricity Meters PDF | HTML 01 Sep 2020
Application brief Single Point Failure Protection for Motor Drives and PLC Systems 30 Jun 2020
Certificate TPS2596 UL Certificate of Compliance IEC 62368-1 10 Apr 2020
Certificate TPS2596 UL Certificate of Compliance UL 2367 10 Apr 2020
Functional safety information eFuse: Safety Certification and why it Matters 18 Mar 2020
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
Application note Minimizing System Down-time with Smart eFuses 12 Jun 2019
Application note Designing Low-Power Circuits (LPCs) using an eFuse for Household and Similar App 10 Jun 2019
Application note Achieve Bidirectional Control and Protection Through Back-to-Back Connected eFus 22 Dec 2017

Design & development

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

Evaluation board

TPS2596EVM — TPS2596xx eFuse evaluation module

The TPS2595EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS2595 eFuse device. The EVM allows the user to apply different input voltages (2.7V to 18V) under different loading conditions (0A to 4A) to the TPS2595. Output, input, load current monitor and (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS259620 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD54A.ZIP (243 KB) - PSpice Model
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Simulation model

TPS259621 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMD53A.ZIP (243 KB) - PSpice Model
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Simulation model

TPS259630 PSpice Transient Model

SLVMD77.ZIP (307 KB) - PSpice Model
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Simulation model

TPS259631 PSpice Transient Model

SLVMD81.ZIP (307 KB) - PSpice Model
Download
Calculation tool

SLVC788 — TPS2596xx Design Calculator

Supported products & hardware

Supported products & hardware

Products
eFuses (integrated hot swaps)
TPS2596 — 2.7-V to 19-V, 85mΩ, 0.13-2A eFuse with selectable over voltage protection clamp in leaded package
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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 (...)
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Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010004 — 12-V, 15-W Power limit, single driver-based stepper, brushed DC and actuator drive reference design

This reference design demonstrates a multi-load drive using one driver chip in multiple configurations enabling reduced inventory. The multiple loads include one bipolar stepper motor, one brushed DC motor, and three actuator or solenoid loads driven from a 12-V DC supply. The design shows less (...)
Design guide: PDF
Schematic: PDF
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