TPS1685
- Input operating voltage range: 9V to 80V
- 92V absolute maximum
- Withstands negative voltages up to –5V at output
- Integrated FET with low on-resistance: RON = 3.5mΩ (typical)
- Active high enable input with adjustable undervoltage lockout (UVLO)
- Adjustable overvoltage protection
- Supports parallel connection of multiple eFuses with device state synchronization and current sharing
- Adjustable output slew rate control (dVdt) for inrush current protection
- Precise load current monitoring
- <3% error for over 50-100% of maximum current
- 1MHz bandwidth
- Robust overcurrent protection
- Circuit-breaker response
- Adjustable threshold: 2A to 20A
- Overcurrent protection accuracy: ±3%
- Adjustable transient overcurrent timer (ITIMER) to support peak currents
- Fast-trip response to short-circuit events
- Overtemperature protection (OTP) with analog die temperature monitor output (TEMP)
- FET SOA: 0.7W√s
- FET health monitoring and reporting
- Fault indication pin (FLT )
- Power Good indication pin (PGOOD)
- Small footprint: QFN 6mm × 5mm
- IPC9592B clearance for 60V
The TPS1685x is an integrated high current circuit protection and power management device. 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 an external capacitor. The user sets the output current limit level per system needs. A user adjustable overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse. An integrated fast and accurate sense analog load current monitor facilitates predictive maintenance and advanced dynamic platform power management such as Intel PSYS and PROCHOT# to optimize server and data-center performance.
Connect multiple TPS1685x devices in parallel to increase the total current capacity for high power systems. All devices actively synchronize the 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.
The devices are characterized for operation over a junction temperature range from –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 | TPS1685x 9V to 80V, 3.5mΩ, 20A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor datasheet (Rev. D) | PDF | HTML | 2026/7/14 | ||
| 應用說明 | Active Current Sharing: Advanced Current Distribution Feature From TI's Smart eFuses | PDF | HTML | 2025/5/9 | |||
| 技術文章 | 利用業界首款整合式 48V 整合熱插拔 (eFuse) 為現代 AI 資料 中心供電 | PDF | HTML | Download English Version | PDF | HTML | 2025/3/20 | |
| 應用說明 | Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses | PDF | HTML | 2025/1/29 |
設計與開發
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TPS1685EVM — TPS1685 評估模組
TPS1685-CALC — TPS1685 Design Calculator
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
TIDA-050090 — 使用 TPS1689 和 TPS1685 eFuse，且適用於 AI 數據中心的 54V 5kW 電源路徑保護參考設計
本參考設計展示適用於 AI 賦能數據中心的 54V、5kW 輸入電源路徑保護電路，採用一台 TPS1689 和五台 TPS1685 eFuse 裝置並聯。這些整合式高電流電路保護裝置使用幾個外部元件提供多種保護，可針對過載、短路及過度湧入電流提供穩固的防護。TPS1689 eFuse 中的整合式 PMBus® 介面可實現即時監控、控制和配置。頂層有三台裝置，底層有三台。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| LQFN-CLIP (VMA) | 23 | 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。