DA14585 - VDD pin and battery bounce circuit

⚠️
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, 2017-12-01 10:47

sr9213

Offline

Last seen:1 month 2 weeks ago

加入:2017-09-26 11:30

DA14585 - VDD pin and battery bounce circuit

Hi MT_Dialog,

What exactly is the use of VDD pin. In the datasheet, it is mentioned that it is used for testing purposes. What tests are these?
Also, should I add the battery debounce circuit(with referecnce to DA1458/6_qfn40_prodb_vA). Is it mandatory?

Thanks and Regards,
Sai Ram

Device:

DA14585

Fri, 2017-12-01 16:37

MT_dialog

Offline

Last seen:2 months 3 weeks ago

加入:2015-06-08 11:34

Hi sr9213,

它的内部电源轨that powers the digital part of the chip and the pin is used for monitoring that rail, this pin should remain floating. Regarding the battery bounce circuit, its not mandatory to apply an external voltage supervisor, but it is suggested to place a capacitor of 1uF between RST and VBAT for that.

Thanks MT_dialog