LM5067
- Wide operating range: –9 V to –80 V
- In-rush current limit for safe board insertion into live power sources
- Programmable maximum power dissipation in the external pass device
- Adjustable current limit
- Circuit breaker function for severe overcurrent events
- Adjustable undervoltage lockout (UVLO) and hysteresis
- Adjustable overvoltage lockout (OVLO) and hysteresis
- Initial insertion timer allows ringing and transients to subside after system connection
- Programmable fault timer avoids nuisance trips
- Active high open drain POWER GOOD output
- Available in latched fault and automatic restart versions
The LM5067 negative hot swap controller provides intelligent control of the power supply connections during insertion and removal of circuit cards from a live system backplane or other “hot” power sources. The LM5067 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). In addition, the LM5067 provides circuit protection by monitoring for over-current and over-voltage conditions. The POWER GOOD output indicates when the output voltage is close to the input voltage. The input under-voltage and over-voltage lockout levels and hysteresis are programmable, as well as the fault detection time. The LM5067-1 latches off after a fault detection, while the LM5067-2 automatically attempts restarts at a fixed duty cycle. The LM5067 is available in a 10-pin VSSOP package and a 14-pin SOIC package.
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 | LM5067 Negative Hot Swap / Inrush Current Controller with Power Limiting datasheet (Rev. D) | PDF | HTML | 2020/8/27 | ||
| 應用說明 | Extend LM5067 Applications With an External Auxiliary Source | PDF | HTML | 2024/1/31 | |||
| 應用說明 | Basics of Power Switches (Rev. A) | PDF | HTML | 2019/4/26 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 選擇指南 | Hot Swap Selection Tool | 2015/7/28 | ||||
| 應用說明 | Robust Hot Swap Design (Rev. A) | 2015/4/8 |
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)。
LM5067EVAL — 具有功率限制的負熱插拔/突波電流控制器評估模組
The LM5067EVAL evaluation board provides the design engineer with a fully functional hot swap controller board designed for negative voltage systems. This board contains an LM5067-2, the auto restart version of this IC. This application note describes the various functions of the board, how to test (...)
LM5067QUICK-CALC — LM5067 Quick Start Calculator
LM5067 計算機工具可協助簡化建立熱插拔設計的程序。輸入系統需求，例如輸入電壓範圍、電流及輸出電容等，計算機將引導使用者選擇元件。 此工具也可用於評估現有設計，或透過分析各種電路情境下的設計裕度來排除問題。
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 10 | Ultra Librarian |
| SOIC (NPA) | 14 | 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。