Use higher voltage to power up DA14531 module

⚠️
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 https://www.dialog-semiconductor.com/support . We’ll be fixing bugs / optimising the searching and tagging over the coming days.

5 posts / 0 new

Last post

Fri, 2021-01-29 00:03

robelhk

Offline

Last seen: 4 months 3 weeks ago

Joined: 2020-10-19 05:50

Use higher voltage to power up DA14531 module

Hi Dialog Semiconductor,

I am planning to use Polymer Lithium-Ion Battery with 3.7 V to power up the DA14531 module for buck mode operation. Will it be ok? or do I have to stay within the 3.3 V limit?

Device:

DA14531 SmartBond TINY Module

Fri, 2021-01-29 11:03

PM_Dialog

Offline

Last seen: 2 days 10 hours ago

Joined: 2018-02-08 11:03

Hi robelhk,

Thanks for your question. Please see DA14531 Module Datasheet and table Table 2: Absolute Maximum Ratings. The max battery supply on the VBAT is up to 3.6V. Acco4rdin to Table 3: Recommended Operating Conditions, the recommended voltage on the VBAT is 3.3V.

Thanks, PM_Dialog

Tue, 2021-02-02 08:41

Adolfo12

Offline

Last seen: 10 months 5 days ago

Joined: 2021-02-02 08:39

We have been using this for

We have been using this for several weeks now and it seems to be going nicely.

YourTexasBenefits

Tue, 2021-02-02 10:39

(Reply to #3) #4

robelhk

Offline

Last seen: 4 months 3 weeks ago

Joined: 2020-10-19 05:50

You mean 3.7 V battery? Any

You mean 3.7 V battery? Any specific battery you are using?

Tue, 2021-02-02 16:03

PM_Dialog

Offline

Last seen: 2 days 10 hours ago

Joined: 2018-02-08 11:03

Hi robelhk,

According to the DA14531MOD datasheet the max supply on the VBAT is 3.6V – please see me previous comment.

Thanks, PM_Dialog