TPS25946
- Wide operating input voltage range: 2.7 V to 23 V
- 28-V absolute maximum
- Integrated back-to-back FETs with low on-resistance: RON = 28.3 mΩ (typ.)
- Bi-directional current flow during ON state
- Reverse current blocking during OFF state
- Fast overvoltage protection
- Adjustable Overvoltage Lockout (OVLO) with 1.2-µs (typ.) response time
- Overcurrent protection in forward direction with load current monitor output (ILM)
- Active current limit response
- Adjustable threshold (ILIM): 0.5 A to 6 A
- ±10% accuracy for ILIM > 1 A
- Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
- Output load current monitor accuracy: ±6% (IOUT ≥ 1 A)
- Fast-trip response for short-circuit protection on OUT pin
- 500-ns (typ.) response time
- Adjustable (2 × ILIM) and fixed thresholds
- Active high enable input with adjustable Undervoltage Lockout threshold (UVLO)
- Adjustable output slew rate control (dVdt)
- Overtemperature protection
- Digital indication options:
- Power Good indication (PG) with adjustable threshold (PGTH) or
- Supply Good (SPLYGD) and Fault (FLT) indications
- UL 2367 recognition
- File No. E339631
-
RILM ≥ 549 Ω
- IEC 62368-1 CB certified
- Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
The TPS25946xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current. With integrated back-to-back FETs, the device allows bi-directional current flow during ON state, while blocking current flow in both directions during OFF state, making it well suited for USB OTG (On-The-Go) applications.
Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current. The output current limit threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.
The devices are available in a 2-mm × 2-mm, 10-pin HotRod QFN package for improved thermal performance and reduced system footprint.
The devices are characterized for operation over a junction temperature range of –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 | TPS25946xx 2.7-V–23-V, 5.5-A, 28-mΩ eFuse with Bidirectional Current Support datasheet (Rev. B) | PDF | HTML | 2022/4/4 | ||
| 證書 | TPS25946x UL2367 Certificate of Compliance E339631 | 2022/1/24 | ||||
| 證書 | TPS25946x CB Test Certificate IEC 62368-1 | 2022/1/19 | ||||
| 證書 | TPS25946x UL2367 Certificate of Compliance E169910 | 2022/1/19 |
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)。
TPS25946EVM — 具雙向電流支援的 TPS25946 評估模組 2.7-V 至 23-V、5.5-A、28-mΩ eFuse
TPS25946EVM eFuse 評估板允許對 TPS25946 eFuse 進行參考電路評估。TPS25946 裝置是具整合式 28.3-mΩ FET 的 2.7-V 至 23-V、5.5-A eFuse。TPS259460x eFuse 系列可在停用時提供反向電流保護，啟用時提供雙向電流流動功能、可調式過電流、突波電流、短路、過熱保護、可調式過電流瞬態消隱定時器、可調式欠電壓和過電壓保護，以及使用者定義的輸出電壓轉換率控制。
SLVRBH8 — TPS25946 Design Calculator
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPW) | 10 | 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。