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IRS2540 Datasheet, PDF (1/28 Pages) International Rectifier – IRPLLED1 High Voltage LED Driver using the IRS2540
IRPLLED1
IRPLLED1 High Voltage LED Driver using the IRS2540
Table of Contents
Page
1. Introduction………………………………………………………………...….1
2. Constant Current Control.......................................................................3
3. Frequency Selection..............................................................................6
4. Output L1 and COUT Selection ................................................................6
5. FET vs. Diode for the Low-Side Switch.………………………………….12
6. VCC Supply ...…………………………………………….………………….15
7. VBS Supply ……………………………………………….………………….16
8. Enable Pin ……….………………………….……………………………….17
9. Other Design Considerations .…………….……………………………….23
10. Design Procedure Summary ……….…………………………………….24
11. Bill of Materials ………………………..……………………………….24-26
12. PCB Layout ………………………………………………………………...26
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