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Part Number: LP5024
I have designed in the LP5024 into a product and have it in testing. I would understand the datasheet to show a minimum output voltage at 10ma to be around 0.250V.
I have operated everything including the LED's from a 3.3 supply, and find that the maximum drive voltage I can get into LED's is around 2.4V, which isn't saturating the LED at all. The Blue LED is barely visible, I would estimate maybe 1-2ma ? This would mean the open collector output is around 0.9V.
I am sending a config starting at address 0 of 0x40,0x3C,0x00,0xFF and driving individual led's with 0xFF starting at address 0x0F
Have I misunderstood the datasheet somewhere?
The iref is a 6.49K resistor that should give me a 10ma output.
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In reply to Erik Friesen:
Well, I guess I didn't ground center pin, duh, so this is a dumb moment.
I will close this thread since you have no problem.
Thanks and best regards, Charles Chen Applications Engineer | LED Drivers
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