LM5069
- 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
- Internal high side charge pump and gate driver for external N-channel MOSFET
- 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
- 10-Pin VSSOP package
The LM5069 positive 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 LM5069 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). The POWER GOOD output indicates when the output voltage is within 1.25 V of the input voltage. The input undervoltage and overvoltage lockout levels and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM5069-1 latches off after a fault detection, while the LM5069-2 automatically restarts at a fixed duty cycle. LM5069 is available in a 10-pin VSSOP package.
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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 | LM5069 Positive High-Voltage Hot Swap/Inrush Current Controller w/Power Limiting datasheet (Rev. G) | 2019/11/8 | |||
| 應用說明 | Parallel Operation of TPS2663 eFuses | PDF | HTML | 2020/11/16 | |||
| 技術文章 | eFuses in factory automation: all-in-one system power protection | PDF | HTML | 2020/9/15 | |||
| 電子書 | 11 Ways to Protect Your Power Path | 2019/7/3 | ||||
| 應用說明 | Accurate Thermal Calculations on the Back of a Napkin | 2019/6/3 | ||||
| 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 | ||||
| 技術文章 | Who tampered with my PLC? Are industrial control systems too flexible? | PDF | HTML | 2016/8/5 | |||
| 應用說明 | Output Voltage Clamping Using the LM5069 Hot Swap Controller (Rev. B) | 2013/5/6 | ||||
| 應用說明 | Surge Stopping and Reverse Voltage Protection with the LM5069 | 2013/4/11 |
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)。
LM5069EVAL — 具有功率限制的正高電壓熱插拔/突波電流控制器評估模組
The LM5069EVAL evaluation board provides the design engineer with a fully functional hot swap controller board designed for positive voltage systems. This board contains an LM5069-2, the auto restart version of this IC. This application note describes the various functions of the board, how to test (...)
LM5069EVM-627 — LM5069 評估板
LM5069EVM-627 為設計工程師提供一個功能齊全的熱插拔控制器評估模組，其中包含突波電壓箝位、反向電壓保護和反向電流保護。此 EVM 具備 LM5069-2，可自動重新啟動。LM5069EVM-627 使用者指南說明電路板功能、如何測試與評估功能，以及如何針對特定應用調整預設元件。如需詳細資訊，請參閱 LM5069 具有功率限制的正高電壓熱插拔/突波電流控制器 (SNVS452) 產品規格表。
LM5069QUICK-CALC — LM5069 Design Calculator
LM5069 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。
SNVR506 — LM5069 Design Calculator With FET Recommendation
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
許多 TI 參考設計包含 LM5069
使用我們的參考設計選擇工具，以檢視並找出最適合您的應用和參數的設計。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 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。