LP5036: backfeed from LEDs

Viktorija Cecil

Part Number: LP5036

My customer is using the LP5036 and want to know - If the Vcc pin is unpowered and the LEDs still have 5 Volts on them, is there a possibility that the LED supply will back feed to Vcc and other pins of the chip?

Thanks

Viktorija

over 5 years ago

0 Charles-Chen over 5 years ago

TI__Genius 11836 points

Hi Viktorija,

Each channel is supposed to be high impedance when Vcc is off.

0 Viktorija Cecil over 5 years ago in reply to Charles-Chen

TI__Mastermind 18291 points

Thank you for a quick reply. Is there anything we mention about this in the datasheet/other documentation, I could direct customer to?

0 Charles-Chen over 5 years ago in reply to Viktorija Cecil

TI__Genius 11836 points

Hi Viktorija,

It's a pity that there is no corresponding materials.

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LP5036: backfeed from LEDs