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.
技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | TPS25984Bx 4.5V–16V, 0.8mΩ, 70A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor データシート (Rev. A) | PDF | HTML | 2025/07/25 | ||
| アナログ デザイン ジャーナル | Analog Design Journal - Issue 1, 2025 | PDF | HTML | 2025/06/27 | |||
| アナログ デザイン ジャーナル | 堅牢で信頼性の高い電力パス保護を実現 する電源スイッチの過渡保護設計 | PDF | HTML | 英語版 | PDF | HTML | 2025/05/23 | |
| アプリケーション・ノート | Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses | PDF | HTML | 2025/01/29 | |||
| 証明書 | TPS25984BEVM EU Declaration of Conformity (DoC) | 2024/10/29 |
設計と開発
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TPS25984BEVM — TPS25984B 評価基板
TPS25984B 評価基板を使用すると、TPS25984B eFuse を採用したリファレンス回路を評価できます。TPS25984B デバイスは、0.8mΩ FET を内蔵した、4.5V ～ 16V、70A の eFuse です。 この製品は、過電流保護、突入電流の管理、調整可能な過電流過渡ブランキング タイマ、低電圧と過電圧のプログラマブルな保護機能を搭載しています。
TPS25984B-CALC — TPS25984B 設計カリキュレータ
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| WQFN-FCRLF (RZJ) | 32 | Ultra Librarian |
購入と品質
推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。