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eFuses (integrated hot swaps)

TPS1663

ACTIVE

4.5-V to 60-V, 31mΩ, 0.6-6A eFuse with output power limiting

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Data sheet

TPS1663

ACTIVE
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Product details

Vabsmax_cont (V) 67 Vin (max) (V) 60 Vin (min) (V) 4.5 Current limit (max) (A) 6 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Output power limiting, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Thermal shutdown UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 31 Overvoltage response Clamp, Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00138 Quiescent current (Iq) (max) (A) 0.0017 Device type eFuses and hot swap controllers TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 67 Vin (max) (V) 60 Vin (min) (V) 4.5 Current limit (max) (A) 6 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Output power limiting, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Thermal shutdown UL recognition IEC62368, UL2367 Overcurrent response Circuit breaker, Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 31 Overvoltage response Clamp, Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00138 Quiescent current (Iq) (max) (A) 0.0017 Device type eFuses and hot swap controllers TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² (4 mm × 4 mm) HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • Operating voltage: 4.5V to 60V
    • Absolute maximum: 67V
  • Integrated 60V, 31mΩ RON hot-swap FET
  • Adjustable current limit: 0.6A to 6A (±7%)
  • Low quiescent current: 21µA in shutdown
  • Adjustable output power limiting (TPS16632 and TPS16637) (±6%)
  • Adjustable UVLO and OVP cutoff with ±2% accuracy
    • Fixed 39V maximum overvoltage clamp (TPS16632 only)
  • Adjustable output slew rate control for inrush current limiting
    • Charges large and unknown capacitive loads through thermal regulation during device power-up
  • Power Good output (PGOOD)
  • Selectable overcurrent fault response options between auto-retry and latch off (MODE)
  • Analog current monitor (IMON) output (±6%)
  • UL 2367 recognized
    • File No. E169910
    • RILIM ≥ 3kΩ
  • IEC 62368-1 certified
  • Functional Safety-Capable
  • Available in easy-to-use 24-pin VQFN package
  • Operating voltage: 4.5V to 60V
    • Absolute maximum: 67V
  • Integrated 60V, 31mΩ RON hot-swap FET
  • Adjustable current limit: 0.6A to 6A (±7%)
  • Low quiescent current: 21µA in shutdown
  • Adjustable output power limiting (TPS16632 and TPS16637) (±6%)
  • Adjustable UVLO and OVP cutoff with ±2% accuracy
    • Fixed 39V maximum overvoltage clamp (TPS16632 only)
  • Adjustable output slew rate control for inrush current limiting
    • Charges large and unknown capacitive loads through thermal regulation during device power-up
  • Power Good output (PGOOD)
  • Selectable overcurrent fault response options between auto-retry and latch off (MODE)
  • Analog current monitor (IMON) output (±6%)
  • UL 2367 recognized
    • File No. E169910
    • RILIM ≥ 3kΩ
  • IEC 62368-1 certified
  • Functional Safety-Capable
  • Available in easy-to-use 24-pin VQFN package

The TPS1663x is an easy-to-use, positive 60V, 6A eFuse with a 31mΩ integrated FET. Protection for the load, source, and eFuse itself are provided along with adjustable features such as accurate overcurrent protection, fast short circuit protection, output slew rate control, overvoltage protection and undervoltage lockout. The TPS16332 device integrates adjustable output power limiting (PLIM) functionality that simplifies and enables compliance to standards such as IEC61010-1 and UL1310. The device also includes adjustable overcurrent functionality. PGOOD can be used for enable and disable control of the downstream DC/DC converters.

A shutdown pin provides external control for enabling and disabling the internal FET, as well as placing the device in a low current shutdown mode. For system status monitoring and downstream load control, the device provides fault and a precise current monitor output. The MODE pin allows flexibility to configure the device between the two current-limiting fault responses (latch off and auto-retry).

The devices are available in a 4mm × 4mm 24-pin VQFN package and are specified over a –40°C to +125°C temperature range.

The TPS1663x is an easy-to-use, positive 60V, 6A eFuse with a 31mΩ integrated FET. Protection for the load, source, and eFuse itself are provided along with adjustable features such as accurate overcurrent protection, fast short circuit protection, output slew rate control, overvoltage protection and undervoltage lockout. The TPS16332 device integrates adjustable output power limiting (PLIM) functionality that simplifies and enables compliance to standards such as IEC61010-1 and UL1310. The device also includes adjustable overcurrent functionality. PGOOD can be used for enable and disable control of the downstream DC/DC converters.

A shutdown pin provides external control for enabling and disabling the internal FET, as well as placing the device in a low current shutdown mode. For system status monitoring and downstream load control, the device provides fault and a precise current monitor output. The MODE pin allows flexibility to configure the device between the two current-limiting fault responses (latch off and auto-retry).

The devices are available in a 4mm × 4mm 24-pin VQFN package and are specified over a –40°C to +125°C temperature range.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS1663x 60V, 6A eFuse with Adjustable Output Power Limiting datasheet (Rev. G) PDF | HTML Apr 1, 2026
Certificate TPSx663 UL Certificate of Compliance IEC 62368-1 (Rev. A) Jul 24, 2025
Application note Reliable Startup with Large and Unknown Capacitive Loads (Rev. A) PDF | HTML Feb 7, 2022
Functional safety information TPS1663 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML Jun 18, 2021
Application note Parallel Operation of TPS2663 eFuses PDF | HTML Nov 16, 2020
Application brief Single Point Failure Protection for Motor Drives and PLC Systems PDF | HTML Jun 30, 2020
Certificate TPSx663 UL Certificate of Compliance UL 2367 Apr 10, 2020
Functional safety information eFuse: Safety Certification and why it Matters Mar 18, 2020
E-book 11 Ways to Protect Your Power Path Jul 3, 2019
Technical article Optimizing power density with eFuses PDF | HTML Jun 27, 2019
Application note Minimizing System Down-time with Smart eFuses Jun 12, 2019
Application note Basics of eFuses (Rev. A) Apr 5, 2018
Application note Power Multiplexing Using Load Switches and eFuses (Rev. A) Jun 20, 2017

Design & development

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

Evaluation board

TPS16630-32EVM — TPS1663x eFuse evaluation module

The TPS16630-32EVM allows reference circuit evaluation of TI's TPS1663x eFuse. The TPS1663X devices are 4.5V - 60V, 6A Industrial eFuse with integrated FET, programmable under voltage, over voltage, over current and inrush current protection features.

User guide: PDF
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Evaluation board

TPS2663-166EVM — Evaluation module for TPS26633 and TPS16630 eFuse in the PWP package

The TPS2663-166EVM allows reference circuit evaluation of TI's TPS26633 and TPS16630 eFuse. The TPS26633 and TPS16630 devices are 4.5V -60V, 6A eFuses with integrated 31mOhm FET.

User guide: PDF
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Simulation model

TPS1663 PSpice Transient Model

SLVMD04.ZIP (303 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVC765 — TPS2663 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 (RGE) 24 Ultra Librarian
HTSSOP (PWP) 20 Ultra Librarian
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