Kiwi project: RGB led

[harti]

Hello,

Because I have no space for additional transistors on my board I made a design with nrF52840 and rgb led connected to 5V. 

Configuration o GPIO pins:

H0D1 Value=7 High drive '0', disconnect '1' (normally used for wired-and connections)

If leds are switched off the voltage at the ports P0.19, P0.24, P0.25 are increased over VDD (3.3V) until around 3.6V.

Can I accept this or can the ports break?

[Kenneth]

If leds are switched off the voltage at the ports P0.19, P0.24, P0.25 are increased over VDD (3.3V) until around 3.6V.

You are loading the internal ESD diodes in this case (which is why it does not exceed ~3.6V), loading the ESD diodes over time may cause EOS damage. So we can't recommend you to do this.

Best regards,
Kenneth

[harti]

I thought this :-(

Thanks for fast reply.

[harti]

Sorry if I open again this topic.

What is the protection diode's current rating?