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TPS25984B

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

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Data sheet

TPS25984B

ACTIVE
Data sheet Order now

Product details

Vabsmax_cont (V) 20 Vin (max) (V) 16 Vin (min) (V) 4.5 Current limit (max) (A) 55 Current limit (min) (A) 10 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Stackable, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 0.8 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0035 Quiescent current (Iq) (max) (A) 0.0044 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 20 Vin (max) (V) 16 Vin (min) (V) 4.5 Current limit (max) (A) 55 Current limit (min) (A) 10 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Stackable, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 0.8 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0035 Quiescent current (Iq) (max) (A) 0.0044 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
WQFN-FCRLF (RZJ) 32 25 mm² 5 x 5
  • Input operating voltage range: 4.5V to 16V
    • Absolute maximum: 20V DC, 23.5V transient
    • Withstands negative voltages up to –1V output
  • Integrated FET, ultra-low RDSON: 0.8mΩ (typ)
  • Rated RMS current: 55A; peak current: 70A
  • Supports parallel connection of multiple eFuses for higher current support
    • Current balancing during start-up
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10A to 80A with accuracy of ±5%
    • Circuit-breaker response during steady-state operation with internal transient overcurrent blanking timer to support peak currents
    • Adjustable active current limit in start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (<200ns) to output short-circuit events
    • Adjustable (2 × IOCP) and fixed thresholds
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • Accuracy: ±1.4%; bandwidth: >500kHz
  • Fast overvoltage protection (fixed 18.4V threshold)
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overtemperature protection (OTP)
    • FET SOA: 10W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (GOK/FLT)
  • Power-Good indication pin (PG)
  • Small footprint: QFN-32, 5mm × 5mm
  • 100% Pb free
  • Input operating voltage range: 4.5V to 16V
    • Absolute maximum: 20V DC, 23.5V transient
    • Withstands negative voltages up to –1V output
  • Integrated FET, ultra-low RDSON: 0.8mΩ (typ)
  • Rated RMS current: 55A; peak current: 70A
  • Supports parallel connection of multiple eFuses for higher current support
    • Current balancing during start-up
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10A to 80A with accuracy of ±5%
    • Circuit-breaker response during steady-state operation with internal transient overcurrent blanking timer to support peak currents
    • Adjustable active current limit in start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (<200ns) to output short-circuit events
    • Adjustable (2 × IOCP) and fixed thresholds
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • Accuracy: ±1.4%; bandwidth: >500kHz
  • Fast overvoltage protection (fixed 18.4V threshold)
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Overtemperature protection (OTP)
    • FET SOA: 10W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (GOK/FLT)
  • Power-Good indication pin (PG)
  • Small footprint: QFN-32, 5mm × 5mm
  • 100% Pb free

The TPS25984Bx is a high-current, stackable integrated hotswap protection (eFuse) device 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. Internal overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse.

Multiple TPS25984Bx devices can be stacked in parallel to increase the total current capacity for high power systems. All devices share current during start-up 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 TPS25984Bx is a high-current, stackable integrated hotswap protection (eFuse) device 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. Internal overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse.

Multiple TPS25984Bx devices can be stacked in parallel to increase the total current capacity for high power systems. All devices share current during start-up 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 TPS25984Bx 4.5V–16V, 0.8mΩ, 70A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor datasheet (Rev. A) PDF | HTML 25 Jul 2025
Analog Design Journal Analog Design Journal - Issue 1, 2025 27 Jun 2025
Analog Design Journal 電源開關的暫態保護設計，可實現穩健、 可靠的電源路徑保護 PDF | HTML 23 May 2025
Analog Design Journal 견고하고 안정적인 전원 경로 보호를 달 성하기 위한 전원 스위치 과도 보호 설계 PDF | HTML 07 May 2025
Analog Design Journal Transient protection design for power switches to achieve robust reliable power-path protection PDF | HTML 23 Apr 2025
Application note Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses PDF | HTML 29 Jan 2025
Certificate TPS25984BEVM EU Declaration of Conformity (DoC) 29 Oct 2024

Design & development

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

Evaluation board

TPS25984BEVM — TPS25984B evaluation module

The TPS25984B evaluation module allows reference circuit evaluation of TPS25984B eFuse. The TPS25984B 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 (...)

User guide: PDF | HTML
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Simulation model

TPS25984B Pspice Transient Model

SLVME99.ZIP (214 KB) - PSpice Model
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Calculation tool

TPS25984B-CALC — TPS25984B design calculator

The design calculator allows customer to size the external peripheral components while designing with one or more TPS25984B eFuse.
Supported products & hardware

Supported products & hardware

Products
eFuses (integrated hot swaps)
  • TPS25984B — 4.5V to 16V, 0.8mΩ, 70A stackable eFuse with accurate and fast current monitor
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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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WQFN-FCRLF (RZJ) 32 Ultra Librarian
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