TPS2521
- Wide operating input voltage range: 2.7 V to 5.7 V
- 28-V absolute maximum
- Withstands negative voltages up to –15 V
- Integrated back-to-back FETs with low on-resistance: RON = 31 mΩ (typ.)
- Ideal diode operation with true reverse current blocking
- Fast overvoltage clamp (OVC) with pin-selectable threshold (3.8 V, 5.7 V) with 5-µs (typ.) response time
- Overcurrent protection with load current monitor output (ILM)
- Active current limit response
- Adjustable threshold (ILIM) 0.5 A–4.44 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
- 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
- Power Good indication (PG) with adjustable threshold (PGTH)
- UL 2367 recognition
- File No. E169910
- RILM ≥ 750 Ω
- IEC 62368-1 CB certified
- Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
The TPS2521x 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, 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 device well suited for systems which need load side energy hold up storage in case input power supply fails.
Output current limit level can be set with a single external resistor. It is also possible to get an accurate sense of the output load current by measuring the voltage drop across the current limit resistor.
Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Loads are protected from input overvoltage conditions by clamping the output to a safe fixed maximum voltage (pin selectable).
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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS2521xx, 2.7-V–5.7-V, 4-A, 31-mΩ True Reverse Current Blocking eFuse with Input Reverse Polarity Protection datasheet (Rev. A) | PDF | HTML | 2022年 3月 29日 |
| Certificate | TPS25210x CB Test Certificate IEC 62368-1 | 2022年 1月 19日 | ||
| Certificate | TPS25210x UL2367 Certificate of Compliance E169910 | 2022年 1月 19日 |
設計與開發
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TPS25210EVM — 適用於 eFuse 的 TPS25210 評估模組
TPS25210EVM eFuse 評估板可對德州儀器 TPS25210 eFuse 進行參考電路評估。TPS25210 裝置是一款 2.7-V 至 5.7-V、4-A eFuse，具有整合 31-mΩ FET 和反向電流保護、輸入反極性保護、過電流、突波電流保護、可調式過電流瞬態消隱定時器、可編程欠電壓與過電壓保護。
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| 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
- 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
- 進行中持續性的可靠性監測
- 晶圓廠位置
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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。