The LM5050-1/-Q1 High 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 ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.
The LM5050-1/-Q1 controller provides charge pump 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 LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LM5050-1, LM5050-1-Q1 High-Side OR-ing FET Controller datasheet (Rev. F) | PDF | HTML | Dec 23, 2019 |
| Application note | Basics of Ideal Diodes (Rev. B) | PDF | HTML | Oct 5, 2021 | |
| E-book | 11 Ways to Protect Your Power Path | Jul 3, 2019 | ||
| Application note | Basics of Power Switches (Rev. A) | PDF | HTML | Apr 26, 2019 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun 25, 2018 | ||
| Technical article | Who tampered with my PLC? Are industrial control systems too flexible? | PDF | HTML | Aug 5, 2016 | |
| Application note | Achieving Stable VGS Using LM5050-1 with Low Current and Noisy Input Supply | Feb 12, 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
The LM5050-1 evaluation board is designed to demonstrate the capabilities of the LM5050-1 OR-ing Diode Controller. One high side N-channel power MOSFET is used. The evaluation board is designed to highlight applications with a small solution size.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23-THN (DDC) | 6 | Ultra Librarian |
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