BQ28Z620: Cell Configuration

Jason Nguyen

Part Number: BQ28Z620

Tool/software:

Dear Expert,

I am learning about BQ28Z620 part and want to clarify this issue.

My application wants to configure the cell as 2p1s (2- Parallel with 1 series), is there any IC that supports it? If so, how to connect it?

5 months ago

0 Alan Frias 5 months ago

TI__Mastermind 26595 points

Hello Jason,

Hello Jason the 2p1s configuration will work with BQ28Z620, and below I've attached the datasheet for hardware, technical reference manual for software and EVM for the application.

Datasheet:
https://www.ti.com/lit/ds/symlink/bq28z620.pdf?ts=1743534542449&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ28Z620

EVM:
https://www.ti.com/lit/ug/sluucq5/sluucq5.pdf?ts=1743534588956&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ28Z620

Technical Reference Manual:
https://www.ti.com/lit/ug/sluuco9a/sluuco9a.pdf?ts=1743534595071&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ28Z620

Thank you,
Alan

0 Jason Nguyen 5 months ago in reply to Alan Frias

Prodigy 70 points

Dear Alan,

Please check if this principle is correct and what is the value of resistor R88 with 2P1S configuratio

+1 Alan Frias 5 months ago in reply to Jason Nguyen

TI__Mastermind 26595 points

Hello Jason,

We received your question and are looking into the solution.

Thank you,
Alan

0 Jason Nguyen 5 months ago in reply to Alan Frias

Prodigy 70 points

Hi Alan,

Ok. Please reply me as soon as possible!

0 Alan Frias 5 months ago in reply to Jason Nguyen

TI__Mastermind 26595 points

Hello Jason,

Your value for R88 works for your system and I had the marked up version of your schematic. Green is good and yellow just highlights the different values your schematic is and the evm.

Thank you,
Alan

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BQ28Z620: Cell Configuration