Product details

FET Internal Ron (Typ) (mOhm) 0.59 Vin (Min) (V) 4.5 Vin (Max) (V) 16 Vabsmax_cont (V) 20 Current limit (Min) (A) 10 Current limit (Max) (A) 60 Overcurrent response circuit breaker Fault response Auto Retry, Latch Off UL recognition None
FET Internal Ron (Typ) (mOhm) 0.59 Vin (Min) (V) 4.5 Vin (Max) (V) 16 Vabsmax_cont (V) 20 Current limit (Min) (A) 10 Current limit (Max) (A) 60 Overcurrent response circuit breaker Fault response Auto Retry, Latch Off UL recognition None
  • Input operating voltage range: 4.5 V to 16 V
    • 20-V absolute maximum
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with ultra-low on-resistance: 0.59 mΩ (typ.)
  • Rated for continuous current of 55 A and peak current of 70 A
  • Supports parallel connection of multiple eFuses for higher current support
    • Active device state synchronization and load sharing during start-up and steady-state
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10 A to 60 A with accuracy of ±5%
    • Circuit-breaker response during steady state operation with adjustable transient overcurrent timer (ITIMER) to support peak currents up to 2 × IOCP
    • Adjustable active current limit during start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (200 ns) to output short-circuit events
    • Adjustable threshold (2 × IOCP)
    • Immune to supply line transients — no nuisance tripping
  • Precise load current monitoring
    • < 2.1% error over 50%–100% of maximum current
    • > 500-kHz bandwidth
  • Fast overvoltage protection (fixed 16.6-V threshold)
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overtemperature Protection (OTP) to ensure FET SOA
    • Guaranteed FET SOA: 12 W√s

  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (FLT)
  • Power Good indication pin (PG)
  • Uncommitted general purpose fast comparator
  • Small footprint: QFN 4.5-mm × 5-mm, 0.6-mm pitch
    • 29-mil clearance between power and GND pins
  • Input operating voltage range: 4.5 V to 16 V
    • 20-V absolute maximum
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with ultra-low on-resistance: 0.59 mΩ (typ.)
  • Rated for continuous current of 55 A and peak current of 70 A
  • Supports parallel connection of multiple eFuses for higher current support
    • Active device state synchronization and load sharing during start-up and steady-state
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10 A to 60 A with accuracy of ±5%
    • Circuit-breaker response during steady state operation with adjustable transient overcurrent timer (ITIMER) to support peak currents up to 2 × IOCP
    • Adjustable active current limit during start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (200 ns) to output short-circuit events
    • Adjustable threshold (2 × IOCP)
    • Immune to supply line transients — no nuisance tripping
  • Precise load current monitoring
    • < 2.1% error over 50%–100% of maximum current
    • > 500-kHz bandwidth
  • Fast overvoltage protection (fixed 16.6-V threshold)
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overtemperature Protection (OTP) to ensure FET SOA
    • Guaranteed FET SOA: 12 W√s

  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (FLT)
  • Power Good indication pin (PG)
  • Uncommitted general purpose fast comparator
  • Small footprint: QFN 4.5-mm × 5-mm, 0.6-mm pitch
    • 29-mil clearance between power and GND pins

The TPS25985x is an integrated, high-current circuit protection and power management solution in a small package. The device provides multiple protection modes using very few external components and is a robust defense against overloads, short-circuits, and excessive inrush current.

Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Output current limit level can be set by user as per system needs. A user adjustable overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse.

Multiple TPS25985x devices can be connected in parallel to increase the total current capacity for high power systems. All devices actively synchronize their operating state and share current during start-up as well as steady state to avoid over-stressing some of the devices which can result in premature or partial shutdown of the parallel chain.

An integrated fast and accurate sense analog load current monitor facilitates predictive maintenance and advanced dynamic platform power management techniques such as Intel PSYS™ and PROCHOT to maximize system throughput and power supply utilization.

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

The TPS25985x is an integrated, high-current circuit protection and power management solution in a small package. The device provides multiple protection modes using very few external components and is a robust defense against overloads, short-circuits, and excessive inrush current.

Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Output current limit level can be set by user as per system needs. A user adjustable overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse.

Multiple TPS25985x devices can be connected in parallel to increase the total current capacity for high power systems. All devices actively synchronize their operating state and share current during start-up as well as steady state to avoid over-stressing some of the devices which can result in premature or partial shutdown of the parallel chain.

An integrated fast and accurate sense analog load current monitor facilitates predictive maintenance and advanced dynamic platform power management techniques such as Intel PSYS™ and PROCHOT to maximize system throughput and power supply utilization.

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 TPS25985x 4.5 V–16 V, 0.59-mΩ, 70-A Stackable eFuse with Accurate and Fast Current Monitor datasheet PDF | HTML 17 May 2022
User guide TPS25985EVM: Evaluation Module for TPS25985 eFuse PDF | HTML 12 May 2022

Design & development

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Evaluation board

TPS25985EVM — TPS25985 evaluation module for 4.5-V to 16-V, 70-A, 0.59-mΩ eFuse

The TPS25985EVM eFuse evaluation board allows reference circuit evaluation of the TPS25985 eFuse. The TPS25985 device is a 4.5-V to 16-V, 70-A eFuse with integrated 0.59-mΩ FET with  overcurrent, inrush current protection, adjustable overcurrent transient blanking timer, programmable (...)

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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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