TPS25948
- Wide operating input voltage range: 3.5 V to 23 V
- 28-V absolute maximum
- Can be powered from either IN or OUT
- Integrated back-to-back FETs with low On-resistance: R ON = 12.2 mΩ (typ.)
- Ideal diode operation with true reverse current blocking (RCB)
- External pin control (RCBCTRL) to disable RCB and allow bi-directional power delivery in steady-state to support USB OTG or DRP operation
- Fast overvoltage protection
- Adjustable overvoltage lockout (OVLO) with 1-µs (typ.) response time
- Overcurrent protection with load current monitor output (ILM)
- Active current limit response
- Adjustable threshold (I LIM) 1 A–9 A
- ±10% accuracy (max) for I LIM > 3 A
- Adjustable transient blanking timer (ITIMER) to allow peak currents > I LIM
- Output load current monitor accuracy: ±6% (typ.) (I OUT ≥ 3 A)
- Fast-trip response for short-circuit protection
- < 1-µs (typ.) response time
- Adjustable and fixed thresholds
- Active high enable input with adjustable undervoltage lockout threshold (UVLO)
- Adjustable output slew rate control (dVdt)
- Overtemperature protection
- Digital outputs: Supply Good (SPLYGD/ SPLYGD) and fault indication (FLT)
- UL 2367 recognition (planned)
- IEC 62368-1 CB certification (planned)
- Small footprint: PowerWCSP 2.4 mm × 1.7 mm, 0.5-mm pitch
The TPS25948xx family of eFuses is a highly integrated, circuit-protection and power-management solution in a small package. The devices provide multiple protection modes that use few external components and are a robust defense against overloads, short-circuits, voltage surges, reverse polarity, and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices well suited for power MUX and ORing applications, as well as systems that need load side energy hold up storage if input power supply fails. The devices use a linear ORing based scheme to ensure almost zero DC reverse current and emulate ideal diode behavior with minimum forward voltage drop and power dissipation. The devices also provide an external pin control option to disable the reverse current blocking and allow bi-directional power delivery in steady-state.
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 2.4-mm × 1.7-mm, 12-ball power wafer chip scale package (PowerWCSP) 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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS25948xx 3.5-V–23-V, 12.2-mΩ, 8-A eFuse With Bi-directional Power Delivery datasheet (Rev. A) | PDF | HTML | 2023年 9月 15日 |
| EVM User's guide | TPS25948EVM: Evaluation Module for TPS25948 eFuse (Rev. A) | PDF | HTML | 2023年 7月 7日 | |
| Certificate | TPS25948EVM EU RoHS Declaration of Conformity (DoC) | 2022年 9月 20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)。
TPS25948EVM — 適用於 3.5-V 至 23-V、8-A、12-mΩ eFuse 的 TPS25948 評估模組
TPS25948 評估模組可對 TPS25948 eFuse 進行參考電路評估。TPS25948 裝置為搭載整合式 12-mΩ FET 及反向電流防護、突波電流防護、可編程過低電壓與過高電壓防護及電流限制的 3.5-V 至 23-V，8-A eFuse。
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
支援產品和硬體
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| POWERWCSP (YWP) | 12 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 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。