首頁 電源管理 電源保護開關與控制器 eFuse（整合式熱插拔）
首頁
電源管理
電源保護開關與控制器
eFuse（整合式熱插拔）

TPS25940

現行

具有反向電流阻斷與 DevSleep 支援的 2.7-V 至 18-V、42mΩ、0.6-5.2A eFuse

立即訂購
產品規格表

TPS25940

現行
產品規格表 立即訂購

產品詳細資料

Vabsmax_cont (V) 20 Vin (max) (V) 18 Vin (min) (V) 2.7 Current limit (max) (A) 5.2 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, Short-circuit protection, Thermal shutdown UL recognition UL2367, UL60950 Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 42 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000199 Quiescent current (Iq) (max) (A) 0.00026 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
Vabsmax_cont (V) 20 Vin (max) (V) 18 Vin (min) (V) 2.7 Current limit (max) (A) 5.2 Current limit (min) (A) 0.6 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, Short-circuit protection, Thermal shutdown UL recognition UL2367, UL60950 Overcurrent response Current limiting Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 42 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.000199 Quiescent current (Iq) (max) (A) 0.00026 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
WQFN (RVC) 20 12 mm² (4 mm × 3 mm)
  • 2.7 V – 18 V Operating Voltage, 20 V (Max)
  • 42 mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200 µA Operating IQ (Typical)
  • 95 µA DevSleep Mode IQ (Typical)
  • 15 µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Threshold
  • Reverse Current Blocking
  • 1 µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • –40°C to 125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A max)
  • UL60950 - Safe during Single Point Failure Test
    • Open/Short ILIM detection
  • 2.7 V – 18 V Operating Voltage, 20 V (Max)
  • 42 mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200 µA Operating IQ (Typical)
  • 95 µA DevSleep Mode IQ (Typical)
  • 15 µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Threshold
  • Reverse Current Blocking
  • 1 µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • –40°C to 125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A max)
  • UL60950 - Safe during Single Point Failure Test
    • Open/Short ILIM detection

The TPS25940 eFuse Power Switch is a compact, feature rich power management device with a full suite of protection functions, including a low power DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating range allows control of many popular DC bus voltages. Integrated back to back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and the low IQ DevSleep mode simplify SSD power management design.

The TPS25940 monitors V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) - 10 mV). This function supports swift changeover to a boosted voltage energy storage element in systems where backup voltage is greater than bus voltage.

The TPS25940 eFuse Power Switch is a compact, feature rich power management device with a full suite of protection functions, including a low power DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating range allows control of many popular DC bus voltages. Integrated back to back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and the low IQ DevSleep mode simplify SSD power management design.

The TPS25940 monitors V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) - 10 mV). This function supports swift changeover to a boosted voltage energy storage element in systems where backup voltage is greater than bus voltage.
filter 尋找其它 eFuse（整合式熱插拔）
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
TPS25947 現行 具有整合式反向極性保護的 2.7V 至 23V、28mΩ、5.5A eFuse Improved performance and pricing in a smaller package
TPS25948 現行 具有雙向電力傳輸限制的 3.5-V 至 23-V、12.2-mΩ、8-A eFuse Higher current and lower RON

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 14
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 TPS25940x 2.7 – 18V eFuse with True Reverse Blocking and DevSleep Support for SSDs datasheet (Rev. A) PDF | HTML 2015/3/26
證書 TPS25940 CB Test Certificate IEC 62368-1 2021/7/8
證書 TPS2594x UL Certificate of Compliance UL 2367 2020/4/10
功能安全資訊 eFuse: Safety Certification and why it Matters 2020/3/18
證書 TPS25940 UL Certificate of Compliance IEC 62368-1 2020/1/17
電子書 11 Ways to Protect Your Power Path 2019/7/3
應用說明 Minimizing System Down-time with Smart eFuses 2019/6/12
應用說明 Basics of eFuses (Rev. A) 2018/4/5
應用說明 Charging Super Capacitor With eFuse 2017/8/8
技術文章 How adding an eFuse will protect your brand’s reputation PDF | HTML 2017/6/21
應用說明 Power Multiplexing Using Load Switches and eFuses (Rev. A) 2017/6/20
應用說明 Achieve 20-A Circuit Protection and Space Efficiency Using Paralleled eFuses 2016/11/3
技術文章 eFuses: clamping and cutoff and auto retry, oh my! – part 2/3 PDF | HTML 2016/5/26
技術文章 eFuses: clamping and cutoff and auto retry, oh my! – part 1/3 PDF | HTML 2016/5/10

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

TPS25940EVM-635 — TPS25940x 評估模組

TPS25940XEVM-635 是一款運作範圍從 2.7V 到 18V 的電子保險絲（具備 DEVSLP 的限流器），並整合了背對背 FET，具備可程式化欠壓、過壓、反向電壓、過流與湧浪電流保護功能。它還在小型的 3x4-mm 20 接腳 QFN 封裝中包含類比電流監控功能。在熱插拔期間，該裝置會限制湧浪電流，且輸出斜坡率可透過 dVdT 接腳上的單一電容器進行設定。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

TPS25940A Unencrypted PSpice Transient Model Package (Rev. C)

SLVMAB0C.ZIP (72 KB) - PSpice 模型
支援產品和硬體
模擬型號

TPS25940L Unencrypted PSpice Transient Model Package (Rev. C)

SLVMAB1C.ZIP (72 KB) - PSpice 模型
支援產品和硬體
計算工具

SLVC571 — TPS2594x Design Calculation Tool

支援產品和硬體
計算工具

TVS-RECOMMENDATION-CALC — TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
支援產品和硬體
參考設計

TIDA-00304 — 斷電保持儲能解決方案

此解決方案可為需要在斷電後短時間內以受控方式關閉的系統（例如 SSD）儲存並提供「斷電」能量。透過將保持能量儲存在高於匯流排電壓的情況下，電容量可減少高達 80%，大幅縮小解決方案尺寸並降低成本，同時提高可靠性。
通常需要使用複雜的電子電路來升壓輸入電壓，在電源故障期間將其與降壓輸入進行多工處理，並降壓至 3.3V 或 5V 供負載使用。


此參考設計在輸入端使用 TI 的 TPS25942 來控制突波，防止過電壓、欠電壓、短路，並防止儲存的能源流回短路的輸入匯流排。如果輸入電源為 5V，升壓轉換器會將電容器組充電至 12V；如果輸入電源為 12V，則充電至 18V。當 TPS25942 (...)

支援產品和硬體
參考設計

TIDA-00429 — 具有 DevSleep SATA 介面的 e-Fuse 電源開關

TPS25940A 提供專用的 DevSleep 介面終端 (DEVSLP)，以強制裝置進入低功率模式。DEVSLP 針腳與主機控制器發出的標準硬體訊號相容。當拉高此針腳時，裝置將進入低功率的 DevSleep 模式。在此模式下，TPS25940A 的最大靜態電流消耗典型值限制為 95µA。TPS25940A 的 DevSleep 功能克服的關鍵挑戰是保持裝置處於活動狀態，即使裝置被強制進入 DevSleep 模式，輸出電壓仍然有效，過載電流限制設定為 I(DEVSLP(LIM)。此外，所有其他保護措施仍然有效，即使在 DevSleep 模式下也能確保系統安全。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RVC) 20 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片