TPS25984B
- 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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS25984Bx 4.5V–16V, 0.8mΩ, 70A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor datasheet (Rev. A) | PDF | HTML | 2025/7/25 | ||
| 類比設計期刊 | Analog Design Journal - Issue 1, 2025 | PDF | HTML | 2025/6/27 | |||
| 類比設計期刊 | 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 | Download English Version | PDF | HTML | 2025/5/23 | |
| 應用說明 | Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses | PDF | HTML | 2025/1/29 | |||
| 證書 | TPS25984BEVM EU Declaration of Conformity (DoC) | 2024/10/29 |
設計與開發
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TPS25984BEVM — TPS25984B 評估模組
TPS25984B 評估模組可對 TPS25984B eFuse 進行參考電路評估。TPS25984B 裝置是具整合式 0.8-mΩ FET 的 4.5-V 至 16-V、70-A eFuse。 其具備過電流、突波電流管理、可調整過電流暫態消隱定時器、可編程欠電壓及過電壓保護。
TPS25984B-CALC — TPS25984B 設計的計算機
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN-FCRLF (RZJ) | 32 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。