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How to select an inductor for LED7707 Backlight Driver?

DVisa
Associate II

We have selected LED7707 backlight driver for the LCD backlight supply.

We have query in inductor selection.

Based on the formula given in the datasheet, We have calculated RMS value of current for input supply of 19V is 0.15A and for 12V, it is 0.295A. But the inductor maximum RMS current in the datasheet is given as 2A. 

 Suggest how to select an inductor,if the supply voltage varies from 12V to 19V.

Do you have any simulation model for the driver.

1 REPLY 1
BRYAN SPEED
Senior

May I please suggest https://www.amazon.com/Switching-Power-Supply-Design-3rd/dp/0071482725

invaluable for the topic at hand. no more google searching lol.