LM5051
- Wide operating input voltage range: -6V to -100V
- -100V Transient Capability
- Gate drive for external N-Channel MOSFET
- MOSFET diagnostic test mode
- Fast 50ns response to current reversal
- 2A peak gate turn-off current
- Package: 8-Lead SOIC
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The LM5051 Low Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This OR-ing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.
The LM5051 controller provides gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5051 can connect power supplies ranging from -6V to -100V and can withstand transients up to -100V.
The LM5051 also provides a FET test diagnostic mode which allows the system controller to test for shorted MOSFETs.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM5051 Low Side OR-ing FET Controller datasheet (Rev. D) | 2013年 3月 21日 | |
| Application note | Basics of Ideal Diodes (Rev. B) | PDF | HTML | 2021年 10月 5日 | |
| E-book | 11 Ways to Protect Your Power Path | 2019年 7月 3日 | ||
| Application note | Basics of Power Switches (Rev. A) | PDF | HTML | 2019年 4月 26日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| User guide | AN-2148 LM5051MAEVAL Evaluation Board (Rev. B) | 2013年 5月 6日 |
設計與開發
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LM5051MAEVAL — 適用於 LM5051 的評估板
The LM5051 evaluation board is designed to demonstrate the capabilities of the LM5051 OR-ing Diode Controller. One lowside N-channel power MOSFET is used per channel. The evaluation board is designed to highlight applications with a small solution size.
LM5051 TINA-TI Transient Reference Design (Rev. A)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
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