DA14681 power consumption is high

⚠️
Hi there.. thanks for coming to the forums. Exciting news! we’re now in the process of moving to our new forum platform that will offer better functionality and is contained within the main Dialog website. All posts and accounts have been migrated. We’re now accepting traffic on the new forum only - please POST any new threads at//www.xmece.com/support. We’ll be fixing bugs / optimising the searching and tagging over the coming days.

2 posts / 0 new

Last post

Fri, 2019-06-21 11:50

song

Offline

Last seen:6 months 4 weeks ago

加入:2016-04-14 09:49

DA14681 power consumption is high

Hi,

My PCB USES DA14681 and other peripheral chips, which are powered by GPIO of DA14681.

When DA14681 is in extended sleep mode, GPIO power is turned off, and the battery output current is 102uA. In DA14681 hibernation mode, the battery output current is 1.4uA.

Some PCB extended sleep power is abnormal, battery output current is 1.9mA, but hibernation power is normal.

I wonder if the power anomaly might be related to DA14681.

Keywords:

DA14681

Device:

DA1468x

Fri, 2019-06-21 16:18

PM_Dialog

Offline

Last seen:16分27秒前

加入:2018-02-08 11:03

Hi song,

It is not recommended to power up a peripheral module through a GPIO. When the chip is in extended sleep, I would suggest to the external supply pins (V33, VDD1V8, VDD1V8P). Please check the 4 Power management section of the DA1468x datasheet.

Thanks, PM_Dialog