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casaroli
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Digital output drive

Hello,

I'd like to drive some 25mA LEDs using the Digital Output and PWM output. Can the DA14580 supply that current or I will need external driver?

I don't see this information on the Datasheet (i.e. I_OH (Output current high)).

Thank you.

JE_Dialog
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Hi Casaroli, I need to check.

Hi Casaroli, I need to check... let me come back to you on this.

BR JE_Dialog

MH_Dialog (not verified)
Hi Casaroli,

Hi Casaroli,

The internal converter only can supply few mA. So you will need a MOSFET as switch and LED is supplied by VBAT3V3 for instance .

BR
MH_Dialog

JE_Dialog
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Hi, GPIOs are speced at 4.8mA

Hi, GPIOs are speced at 4.8mA in 3V buck mode. (@ Vol=0.47V)
See datasheet table 13 Digital I/O: DC characteristics

So MH_Dialog suggestion is the right way to approach the solution.

BR JE_Dialog

casaroli
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Thank you for your reply.

Thank you for your reply.

But I don't see this information on table 13 of the file: DA14580_DS_v3.0.pdf

Am I missing something?

JE_Dialog
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Sorry, table 3, page 6...

Sorry, table 3, page 6...

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casaroli
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Hi,

Hi,

There is no table 3 in page 6. If you are referring to table 3 "maximum absolute ratings" on page 19, the information I am looking for is not there.

What PDF file name are you using?

JE_Dialog
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HI there, its the latest

HI there, its the latest datasheet on the web site (ver 3.1). Screenshot below.

BR JE_Dialog