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TPS25984

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4.5-V to 16-V, 0.8-mΩ 70-A stackable eFuse with accurate and fast current monitor

Product details

FET Internal Ron (typ) (mΩ) 0.8 Vin (min) (V) 4.5 Vin (max) (V) 16 Vabsmax_cont (V) 20 Current limit (min) (A) 10 Current limit (max) (A) 55 Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Over Current Protection, Overvoltage protection, Power good signal, Short-circuit protection, Soft-start, Thermal shutdown Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown
FET Internal Ron (typ) (mΩ) 0.8 Vin (min) (V) 4.5 Vin (max) (V) 16 Vabsmax_cont (V) 20 Current limit (min) (A) 10 Current limit (max) (A) 55 Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Over Current Protection, Overvoltage protection, Power good signal, Short-circuit protection, Soft-start, Thermal shutdown Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown
WQFN-FCRLF (RZJ) 32 25 mm² 5 x 5
  • Input operating voltage range: 4.5 V to 16 V
    • Absolute maximum: 20 V
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with ultra-low on-resistance: 0.8 mΩ (typical)
  • Rated for RMS 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 (I OCP): 10 A to 55 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 × I OCP
    • Adjustable active current limit during start-up (I LIM)
  • Robust short-circuit protection
    • Fast-trip response (< 200 ns) to output short-circuit events
    • Adjustable threshold (2 × I OCP)
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • Accuracy: ±1.4 %
    • Bandwidth: > 500 kHz
  • Fast overvoltage protection (fixed 16.7-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: 10 W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin ( FLT)
  • Power-Good indication pin (PG)
  • Small footprint: QFN 5 mm × 5 mm
  • 100% Pb free
  • Input operating voltage range: 4.5 V to 16 V
    • Absolute maximum: 20 V
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with ultra-low on-resistance: 0.8 mΩ (typical)
  • Rated for RMS 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 (I OCP): 10 A to 55 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 × I OCP
    • Adjustable active current limit during start-up (I LIM)
  • Robust short-circuit protection
    • Fast-trip response (< 200 ns) to output short-circuit events
    • Adjustable threshold (2 × I OCP)
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • Accuracy: ±1.4 %
    • Bandwidth: > 500 kHz
  • Fast overvoltage protection (fixed 16.7-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: 10 W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin ( FLT)
  • Power-Good indication pin (PG)
  • Small footprint: QFN 5 mm × 5 mm
  • 100% Pb free

The TPS25984x 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 TPS25984x 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 TPS25984x 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 TPS25984x 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 TPS25984x 4.5 V – 16 V, 0.8-mΩ, 70-A Stackable eFuse With Accurate and Fast Current Monitor datasheet (Rev. A) PDF | HTML 12 Oct 2023
Application note Implementation of PSYS Monitor Using TPS25984, TPS25985, or TPS25990 eFuses PDF | HTML 15 Nov 2023
EVM User's guide TPS25984 Evaluation Module (EVM) (Rev. A) PDF | HTML 02 Nov 2023
Certificate TPS25984EVM EU RoHS Declaration of Conformity (DoC) 11 Nov 2022

Design & development

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Evaluation board

TPS25984EVM — TPS25984 evaluation module for 4.5-V to 16-V 70-A 0.8-mΩ eFuse

The TPS25984 eFuse evaluation board allows reference circuit evaluation of TPS25984 eFuse. The TPS25984 device is a 4.5-V to 16-V 70-A eFuse with integrated 0.8-mΩ FET. It comes with overcurrent, inrush current management, adjustable overcurrent transient blanking timer, programmable (...)

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WQFN-FCRLF (RZJ) 32 View options

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