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電源保護開關與控制器
eFuse（整合式熱插拔）

TPS25985

現行

具有精確和快速電流監視器的 4.5-V 至 16-V、0.59-mΩ、80-A 堆疊式精巧 eFuse

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產品規格表

TPS25985

現行
產品規格表 立即訂購

產品詳細資料

Vabsmax_cont (V) 20 Vin (max) (V) 16 Vin (min) (V) 4.5 Current limit (max) (A) 60 Current limit (min) (A) 10 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Stackable, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 0.59 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00045 Quiescent current (Iq) (max) (A) 0.00055 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) 60 Current limit (min) (A) 10 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Stackable, Thermal shutdown, adjustable UVLO Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 0.59 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.00045 Quiescent current (Iq) (max) (A) 0.00055 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
VQFN-HR (RQP) 26 22.5 mm² 5 x 4.5
  • Input operating voltage range: 4.5 V to 16 V
    • 20-V absolute maximum
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with low on-resistance: 0.59 mΩ (typ.)
  • Rated for 60-A RMS current and 80-A peak current
  • Supports parallel connection of multiple eFuses for higher current support
    • Active device state synchronization and load sharing during start-up and steady-state for unlimited scalability
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10 A to 60 A with accuracy of ±6% (max.)
    • Circuit-breaker response during steady state operation with adjustable transient blanking timer (ITIMER) to support peak currents up to 2 × IOCP
    • Adjustable active current limit during start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (< 200 ns) to output short-circuit events
    • Adjustable (2 × IOCP )and fixed thresholds
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • ±1.4% accuracy
    • > 500-kHz bandwidth
  • Fast overvoltage protection (fixed 16.6-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
    • Assured FET SOA: 12 W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (FLT)
  • Power Good indication pin (PG)
  • Uncommitted general purpose fast comparator
  • Small footprint: QFN 4.5-mm × 5-mm, 0.6-mm pitch
    • 29-mil clearance between power and GND pins
  • 100% Pb Free
  • Input operating voltage range: 4.5 V to 16 V
    • 20-V absolute maximum
    • Withstands negative voltages up to –1 V at output
  • Integrated FET with low on-resistance: 0.59 mΩ (typ.)
  • Rated for 60-A RMS current and 80-A peak current
  • Supports parallel connection of multiple eFuses for higher current support
    • Active device state synchronization and load sharing during start-up and steady-state for unlimited scalability
  • Robust overcurrent protection
    • Adjustable overcurrent threshold (IOCP): 10 A to 60 A with accuracy of ±6% (max.)
    • Circuit-breaker response during steady state operation with adjustable transient blanking timer (ITIMER) to support peak currents up to 2 × IOCP
    • Adjustable active current limit during start-up (ILIM)
  • Robust short-circuit protection
    • Fast-trip response (< 200 ns) to output short-circuit events
    • Adjustable (2 × IOCP )and fixed thresholds
    • Immune to supply line transients — no nuisance tripping
  • Precise analog load current monitoring
    • ±1.4% accuracy
    • > 500-kHz bandwidth
  • Fast overvoltage protection (fixed 16.6-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
    • Assured FET SOA: 12 W√s
  • Integrated FET health monitoring and reporting
  • Analog die temperature monitor output (TEMP)
  • Dedicated fault indication pin (FLT)
  • Power Good indication pin (PG)
  • Uncommitted general purpose fast comparator
  • Small footprint: QFN 4.5-mm × 5-mm, 0.6-mm pitch
    • 29-mil clearance between power and GND pins
  • 100% Pb Free

The TPS25985x 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 TPS25985x 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.

The TPS25985x 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 TPS25985x 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.
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類型 標題 日期
* Data sheet TPS25985x 4.5 V – 16 V, 0.59-mΩ, 80-A Stackable eFuse with Accurate and Fast Current Monitor datasheet (Rev. A) PDF | HTML 2022年 9月 29日
Application note Active Current Sharing: Advanced Current Distribution Feature From TI's Smart eFuses PDF | HTML 2025年 5月 9日
Application note Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses PDF | HTML 2025年 1月 29日
Application note Implementation of PSYS Monitor Using TPS25984, TPS25985, or TPS25990 eFuses PDF | HTML 2023年 11月 15日
Technical article Managing thermals: 3 ways to break through power-density barriers PDF | HTML 2022年 10月 16日
Technical article How a fully-stackable eFuse can help meet ever-increasing power needs of servers PDF | HTML 2022年 10月 3日
Certificate TPS25985EVM EU RoHS Declaration of Conformity (DoC) (Rev. A) 2022年 9月 15日
Application note How eFuse Ensures Integrated FET Operation in Safe Operating Area PDF | HTML 2022年 9月 7日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS25985EVM — 適用於 4.5-V 至 16-V、80-A、0.59-mΩ eFuse 的 TPS25985 評估模組

TPS25985EVM eFuse 評估板允許對 TPS25985 eFuse 進行參考電路評估。TPS25985 裝置為一搭載整合式 0.59-mΩ FET 及過電流、突波電流防護、可調式過電流瞬態消隱定時器、可編程欠電壓和過電壓防護的 4.5-V 至 16-V、80-A eFuse。

使用指南: PDF | HTML
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模擬型號

TPS25985x PSpice Transient Model (Rev. A)

SLVMDZ3A.ZIP (220 KB) - PSpice Model
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計算工具

SLVRBL0 — TPS25985 Design Calculator

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產品
eFuse（整合式熱插拔）
TPS25985 — 具有精確和快速電流監視器的 4.5-V 至 16-V、0.59-mΩ、80-A 堆疊式精巧 eFuse
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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參考設計

TIDA-050077 — 採用可堆疊式 eFuse 的 4kW、12V 輸入電源路徑保護參考設計

本參考設計展示適用於資料中心伺服器的 12V、4kW 輸入電源路徑保護系統，採用六台 TPS25985 eFuse 裝置並聯架構。TPS25985x 是一款精巧、封裝整合式、可平行高電流電路保護和電源管理裝置。此參考設計的主要目標是展示兩台裝置位於相同區域時，TPS25985 eFuse 的熱性能：一個位於 PCB 上方，另一個位於底部。在此配置中，四台裝置位於頂層，而另兩台裝置位於底層，直接與頂層的第二台和第三台設備對齊。
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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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