The Great Search – White LED strand backlight constant current driver (FAN5333 replacement) #TheGreatSearch @DigiKey @Adafruit

(Video) Another day, another part we can’t get! This week we’re on the hunt for a replacement for the FAN5333, a constant-current, 24V boost converter that we use for our TFT displays with big back lights like the 4.3″ touchscreen. These displays often have 6 or 7 white LEDs in series, and sometimes multiple strands of them!

That means boosting 3.3V or 5V up to 22VDC with 50 to 100mA of current. That’s a lot of power! Let’s find a good alternative at Digi-Key so we can keep making display breakouts that folks love – ideally one that is drop-in compatible with the FAN5333 or at least one with minimal design changes required.

See the chosen part on Digi-Key

See episodes of The Desk of Ladyada in the playlist here and other Great Searches in the playlist here.


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