TPS2421-2
- Integrated Pass MOSFET
- Up to 20-V Bus Operation
- Programmable Fault Current
- Current Limit Proportionally Larger than Fault Current
- Programmable Fault Timer
- Internal MOSFET Power Limiting
- Latch-Off on Fault (TPS2421-1) and Retry (TPS2421-2) Versions
- SO-8 PowerPad™ Package
- –40°C to +125°C Junction Temperature Range
- UL2367 Recognized - File Number E169910
The TPS2421 device provides highly integrated hot swap power management and superior protection in applications where the load is powered by busses up to 20 V. The TPS2421 device is well suited to standard bus voltages as low as 3.3 V because of the maximum-UV turnon threshold of 2.9 V. These devices are very effective in systems where a voltage bus must be protected to prevent shorts from interrupting or damaging the unit. The TPS2421 device is an easy to use devices in an 8-pin PowerPad™ SO-8 package.
The TPS2421 device has multiple programmable protection features. Load protection is accomplished by a non-current limiting fault threshold, a hard current limit, and a fault timer. The current dual thresholds allow the system to draw short high current pulses, while the fault timer is running, without causing a voltage droop at the load. An example of this is a disk drive startup. This technique is ideal for loads that experience brief high demand, but benefit from protection levels in-line with their average current draw.
Hotswap MOSFET protection is provided by power limit circuitry which protects the internal MOSFET against SOA related failures.
The TPS2421 device is available in latch-off on fault (TPS2421-1) and retry on fault (TPS2421-2).
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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 | TPS2421-x 5-A, 20-V Integrated FET Hot Swap datasheet (Rev. K) | PDF | HTML | 2019/5/15 | ||
| 證書 | TPS2421-2 UL Certificate of Compliance IEC 60950-1 | 2020/4/24 | ||||
| 功能安全資訊 | eFuse: Safety Certification and why it Matters | 2020/3/18 | ||||
| 電子書 | 11 Ways to Protect Your Power Path | 2019/7/3 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Basics of eFuses (Rev. A) | 2018/4/5 | ||||
| 應用說明 | Power Multiplexing Using Load Switches and eFuses (Rev. A) | 2017/6/20 | ||||
| 使用指南 | TPS2420 Reference Design | 2009/3/27 |
設計與開發
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TPS2421-1EVM-02 — TPS2421-1 熱插拔控制器評估模組
The TPS2421-1EVM-02 is a 3-V to 18-V module using the TPS2421-1 hot swap controller with integrated MOSFET. At power on, the output is power limited to control inrush current and protect the MOSFET. On an over-current condition, the controller interrupts power to the load at high speed and signals (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | 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。