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eFuses (integrated hot swaps)

TPS1641

ACTIVE

2.7-V to 40-V 152-mΩ 1.8-A eFuse with output power limiting

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Data sheet

TPS1641

ACTIVE
Data sheet Order now

Product details

Vabsmax_cont (V) 42 Vin (max) (V) 40 Vin (min) (V) 2.7, 4.5 Current limit (max) (A) 1.8 Current limit (min) (A) 0.03 Features 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 Overcurrent response Current limiting, Power limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 152 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0012 Quiescent current (Iq) (max) (A) 0.0021 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 42 Vin (max) (V) 40 Vin (min) (V) 2.7, 4.5 Current limit (max) (A) 1.8 Current limit (min) (A) 0.03 Features 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 Overcurrent response Current limiting, Power limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 152 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0012 Quiescent current (Iq) (max) (A) 0.0021 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • Operating voltage range (IN):
    • 4.5 V to 40 V (power limit devices)
    • 2.7 V to 40 V (current limit devices)
  • Withstands negative voltages up to –1 V at output
  • Ultra-low ON-resistance: R ON = 152 mΩ (typ.)
  • 2-W to 64-W power limiting
  • 0.03-A to 1.8-A current limiting
  • IN to OUT short detection and indication on FLT pin
  • FLT output for diagnostics and driving external PFET
  • ±5% accurate power limit at 15 W (power limit devices)
  • ±6% accurate current limit at 1 A (current limit devices)
  • Configurable overvoltage protection
  • Configurable overcurrent protection (I OCP)
  • Configurable blanking time for transient currents
  • Overvoltage protection up to 60 V with external FET
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Enable and shutdown control
  • Output load current monitoring on IOCP pin
  • Overtemperature protection (OTP) with thermal shutdown
  • Small footprint: QFN 3 × 3 mm, 0.5-mm pitch
  • Operating voltage range (IN):
    • 4.5 V to 40 V (power limit devices)
    • 2.7 V to 40 V (current limit devices)
  • Withstands negative voltages up to –1 V at output
  • Ultra-low ON-resistance: R ON = 152 mΩ (typ.)
  • 2-W to 64-W power limiting
  • 0.03-A to 1.8-A current limiting
  • IN to OUT short detection and indication on FLT pin
  • FLT output for diagnostics and driving external PFET
  • ±5% accurate power limit at 15 W (power limit devices)
  • ±6% accurate current limit at 1 A (current limit devices)
  • Configurable overvoltage protection
  • Configurable overcurrent protection (I OCP)
  • Configurable blanking time for transient currents
  • Overvoltage protection up to 60 V with external FET
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Enable and shutdown control
  • Output load current monitoring on IOCP pin
  • Overtemperature protection (OTP) with thermal shutdown
  • Small footprint: QFN 3 × 3 mm, 0.5-mm pitch

The TPS1641x familyare integrated eFuse devices with accurate power limit or current limit. The device family provides robust protection with integrated overcurrent protection, overvoltage protection, IN to OUT short detection, and overtemperature protection.

TPS16410TPS16411, TPS16414, and TPS16415 devices provide ±5% power limiting at 15 W for loads and it also provide configurable blanking time for transient overload or overcurrent events. TPS16410, TPS16411, TPS16414, and TPS16415 can be used in low power circuits (LPCs) for 15-W power limiting as per IEC60335 and UL60730 standards. TPS1641x devices provide protection from adjacent pin short and pin short to GND faults.

Applications such as backplane power protection in PLC and DCS modules configure the current limit with a resistor on the ILIM pin. TPS16412, TPS16413, TPS16416, and TPS16417 devices provide ±6% current limiting at 1 A for loads and also provide output slew rate control with dVdT pin to charge large capacitive loads at power up.

TPS1641x features IN to OUT short detection and indicate IN to OUT short on the FLT pin. The FLT pin either provides to MCU as digital input or to drive an external PFET.

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

The TPS1641x familyare integrated eFuse devices with accurate power limit or current limit. The device family provides robust protection with integrated overcurrent protection, overvoltage protection, IN to OUT short detection, and overtemperature protection.

TPS16410TPS16411, TPS16414, and TPS16415 devices provide ±5% power limiting at 15 W for loads and it also provide configurable blanking time for transient overload or overcurrent events. TPS16410, TPS16411, TPS16414, and TPS16415 can be used in low power circuits (LPCs) for 15-W power limiting as per IEC60335 and UL60730 standards. TPS1641x devices provide protection from adjacent pin short and pin short to GND faults.

Applications such as backplane power protection in PLC and DCS modules configure the current limit with a resistor on the ILIM pin. TPS16412, TPS16413, TPS16416, and TPS16417 devices provide ±6% current limiting at 1 A for loads and also provide output slew rate control with dVdT pin to charge large capacitive loads at power up.

TPS1641x features IN to OUT short detection and indicate IN to OUT short on the FLT pin. The FLT pin either provides to MCU as digital input or to drive an external PFET.

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 TPS1641x 40-V, 1.8-A Power and Current Limiting eFuse with IN to OUT Short Detection datasheet (Rev. B) PDF | HTML 03 May 2023
Certificate TPS1641 UL Certificate of Compliance IEC 62368-1 24 Jul 2025

Design & development

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

Evaluation board

TPS1641EVM — TPS1641 evaluation module for 40-V 1.8-A eFuse

The TPS1641EVM allows reference circuit evaluation of TPS1641 devices. The TPS1641 is a compact 40-V, 1.8-A eFuse with IN to OUT short detection, programmable overvoltage, inrush current protection, configurable current and power limiting features.

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

TPS1641 PSpice Transient Model

SLVME00.ZIP (103 KB) - PSpice Model
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Calculation tool

TPS1641-CALC — TPS1641 design calculator

The design calculator allows customer to size the external peripheral components while designing with TPS1641 eFuse
Supported products & hardware

Supported products & hardware

Products
eFuses (integrated hot swaps)
  • TPS1641 — 2.7-V to 40-V 152-mΩ 1.8-A eFuse with output power limiting
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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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Reference designs

TIDA-010950 — Damper and EEV controller Reference Design with power regulation and Hall-effect position sensing

This reference design demonstrates a dual motor drive solution for damper actuators and electronic expansion valves . The multiple motor drives include one bipolar stepper motor driver, one brushless DC motor driver, operating from a 15VDC source. The design shows accurate power limiting that helps (...)
Design guide: PDF
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