BQ25887: Enable charging not working even after assigning all the registers to the desired values.

Nilotpal Baruah

Part Number: BQ25887

Tool/software:

I have attach the source file for reference. Please help me out here. I have tried a thousand times to enable charging but its of no use.

11 months ago

0 Ning T 11 months ago

TI__Guru 59711 points

Hi,

Please refer to the link below for the BQ2588x schematic checklist and make sure the charge is enabled corrected.

https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1051774/faq-bq25883-faq-bq2588x-schematic-review-and-layout-tips-for-bq25882-bq25883-bq25886-and-bq25887

Thanks,

Ning.

0 Nilotpal Baruah 11 months ago in reply to Ning T

Prodigy 45 points

I am using a module from Mikroe:

https://www.mikroe.com/balancer-5-click

For your reference I have even attached the schematic provided by Mikroelectronika.

Can you find any reason why it is not working?

balancer-5-click-schematic-v100.pdf

0 Ning T 11 months ago in reply to Nilotpal Baruah

TI__Guru 59711 points

Hi,

Referring to the d/s, please place a 44-µF ceramic capacitor on SNS pin for stability of this output and double-check your schematic with Figure 69. BQ25887 (Cell Balancing and I 2C) Typical Application Diagram and the EVM design.

Thanks,

Ning

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BQ25887: Enable charging not working even after assigning all the registers to the desired values.