LM36923H: Using 2 strings with the LM36923H

Connor Connaughton

Expert 4470 points

Part Number: LM36923H

Hello team,

In my application I don’t need the 3^rd string of the LM36923H.

Can you help with the questions below?

I do not intend to use the PWM input, only the I2C. Therefore, the question is do I leave pin unconnected or should pull high or low?
When using the LM36923H, the 3^rd string input LED3, which will not be used, do we leave just unconnected or should it be pulled high or low?

Thanks!

Connor

over 3 years ago

0 Mason Wang over 3 years ago

TI__Genius 9630 points

hi Connor, I'm still working on this, and will get back to you ASAP.

+1 Mason Wang over 3 years ago

TI__Genius 9630 points

hi Connor

1. For the PWM input, if this is not enabled, you can leave it floating.

2. For the unused LED output pin, it would be better to pull it high to supply rail > than 0.3V, the reason is to avoid Boost OVP during accidental enabling of unused current sink.

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LM36923H: Using 2 strings with the LM36923H