Calculation tool
TPS25984-CALC — TPS25984 design calculator
The design calculator allows customer to size the external peripheral components while designing with one or more TPS25984 eFuse.
TPS25984
4.5-V to 16-V, 0.8-mΩ 70-A stackable eFuse with accurate and fast current monitor
Data sheet
TPS25984
- 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.
Technical documentation
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View all 4 | 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
For additional terms or required resources, click any title below to view the detail page where available.
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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Supported products & hardware
This design resource supports most products in these categories.
Check the product details page to verify support.
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parametric-filter eFuses & hot swap controllers
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN-FCRLF (RZJ) | 32 | Ultra Librarian |
Ordering & quality
Information included:
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