Use higher voltage to power up DA14531 module

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Fri, 2021-01-29 00:03

robelhk

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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

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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

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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

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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

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Hi robelhk,

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

Thanks, PM_Dialog