TPS25940
- 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.
技術文件
設計與開發
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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。
TPS25940A Unencrypted PSpice Transient Model Package (Rev. C)
TPS25940L Unencrypted PSpice Transient Model Package (Rev. C)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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。
在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
TIDA-00429 — 具有 DevSleep SATA 介面的 e-Fuse 電源開關
TIDA-00304 — 斷電保持儲能解決方案
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 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RVC) | 20 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
- 晶圓廠位置
- 組裝地點
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。