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Author Topic: Futaba M402SD10FJ VFD(Display) drawing excessive current.  (Read 244 times)

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Offline ALearningLadTopic starter

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Futaba M402SD10FJ VFD(Display) drawing excessive current.
« on: March 11, 2024, 11:14:30 pm »
When I apply power to the input pins it will draw 2 amps at 3.3 volts, the datasheet says it should only be drawing 300MA at max. Anyone have any ideas? This is a brand new display that just arrived today, though it did also kill an esp32s flash while being properly hooked up. No dead shorts anywhere that I could find probing around.
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Offline ALearningLadTopic starter

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  • Country: us
Re: Futaba M402SD10FJ VFD(Display) drawing excessive current.
« Reply #1 on: March 12, 2024, 01:16:05 am »
Hah, apparently 3 of the Parallel Input pins are configured to output 5v with how the jumpers are configured... whoops. That explains the esp32, but what about the excessive current draw?
« Last Edit: March 12, 2024, 05:36:34 am by ALearningLad »
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