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

TPS25940-Q1

ACTIVE

2.7-V to 18-V, 42mΩ, 0.6-5.3A automotive eFuse with current monitor and short to battery protection

Order now
Data sheet

TPS25940-Q1

ACTIVE
Order now

Product details

Vabsmax_cont (V) 20 Vin (max) (V) 18 Vin (min) (V) 2.7 Current limit (max) (A) 5.3 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, Short-circuit protection, Thermal shutdown Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 42 Overvoltage response Cut-off Rating Automotive Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00014 Quiescent current (Iq) (max) (A) 0.00027 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 20 Vin (max) (V) 18 Vin (min) (V) 2.7 Current limit (max) (A) 5.3 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, Short-circuit protection, Thermal shutdown Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 42 Overvoltage response Cut-off Rating Automotive Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00014 Quiescent current (Iq) (max) (A) 0.00027 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
WQFN (RVC) 20 12 mm² (4 mm × 3 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • 2.7-V to 18-V operating voltage, 20 V (maximum)
  • Total RON: 42 mΩ (typical)
  • 0.6-A to 5.3-A adjustable current limit (±8%)
  • IMON Current indicator output
    • ±8% accuracy for TPS25940-Q1/TPS25940L-Q1
  • Adjustable under-, overvoltage threshold (±2%)
  • Reverse current blocking
  • 1-µs reverse voltage shutoff
  • Programmable dVo/dt control
  • Power good and fault outputs
  • Short-to-battery protection
  • Short-to-ground protection
  • TPS25940-Q1/TPS259401A-Q1: auto-retry
  • TPS25940L-Q1: latch-off
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • 2.7-V to 18-V operating voltage, 20 V (maximum)
  • Total RON: 42 mΩ (typical)
  • 0.6-A to 5.3-A adjustable current limit (±8%)
  • IMON Current indicator output
    • ±8% accuracy for TPS25940-Q1/TPS25940L-Q1
  • Adjustable under-, overvoltage threshold (±2%)
  • Reverse current blocking
  • 1-µs reverse voltage shutoff
  • Programmable dVo/dt control
  • Power good and fault outputs
  • Short-to-battery protection
  • Short-to-ground protection
  • TPS25940-Q1/TPS259401A-Q1: auto-retry
  • TPS25940L-Q1: latch-off

The TPS25940xx-Q1 eFuse Power Switches are compact, feature rich power management devices with a full suite of protection functions. The wide operating range allows control of many popular DC bus voltages. Integrated back-to-back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and mode simplify power management design.

The TPS25940xx-Q1 monitor V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) – 66 mV). This function supports supply bus protection from over-voltages during output short to battery faults.

The TPS25940xx-Q1 eFuse Power Switches are compact, feature rich power management devices with a full suite of protection functions. The wide operating range allows control of many popular DC bus voltages. Integrated back-to-back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and mode simplify power management design.

The TPS25940xx-Q1 monitor V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) – 66 mV). This function supports supply bus protection from over-voltages during output short to battery faults.
filter Find other eFuses (integrated hot swaps)
Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 6
Top documentation Type Title Format options Date
* Data sheet TPS25940xx-Q1 2.7-V to 18-V eFuse with Integrated Short-to-Battery Protection datasheet (Rev. E) PDF | HTML Jan 29, 2021
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
Application note Basics of eFuses (Rev. A) Apr 5, 2018
Application note Charging Super Capacitor With eFuse Aug 8, 2017
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

TPS25940EVM-635 — TPS25940x Evaluation Module

The TPS25940XEVM-635 is an eFuse (Current Limiter with DEVSLP) that operates from 2.7V to 18V, and have integrated back-to-back FETs with programmable under-voltage, over-voltage, reverse-voltage, over-current and in-rush current protection. It also includes analog current monitoring in a small (...)

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

TPS25940-Q1 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMBN6B.ZIP (78 KB) - PSpice model
Supported products & hardware
Simulation model

TPS25940L-Q1 PSpice Transient Model

SLVMCQ3.ZIP (84 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVC571 — TPS2594x Design Calculation Tool

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
Reference design

PMP30046 — Enterprise SSD Backup Power Reference Design

The PMP30046 reference design shows a system solution for an enterprise SSD backup power supply. The input voltage of the hotswap controller can be either 5V or 12V. A buck stage converts this input voltage to 3.3V with a maximum load current of 2.5A. The 3.3V are boosted to 28V for charging a (...)
Supported products & hardware
Reference design

TIDA-01413 — ADAS 8-Channel Sensor Fusion Hub Reference Design with Two 4-Gbps Quad Deserializers

This sensor fusion hub reference design allows the connection of up to four 2-megapixel cameras and up to four radar modules over coaxial cable. This design utilizes these coaxial cables to provide power, backchannel communication, and clock synchronization to the sensors. The two 4 Gbps FPD-Link (...)
Supported products & hardware
Reference design

TIDA-01514 — Protection and Light-Load Detection Reference Design for Antenna Modules

The TIDA-01514 reference design provides protection and diagnostics for antenna modules for use in automotive infotainment and navigation systems. This design is an alternate solution for antenna low-dropout linear regulators (LDOs) for the purpose of achieving lower ohmic drop (IR) while meeting (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WQFN (RVC) 20 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