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BQ27546-G1: Support Request for BQ27546-G1 Integration and Measurement Procedure

jay kapadiya
Prodigy 110 points
Part Number: BQ27546-G1
Other Parts Discussed in Thread: BQSTUDIO

Tool/software:

Hi,

We have started development using the BQ27546-G1 fuel gauge with a rechargeable lithium-polymer battery, and we would like to measure the following parameters from the gauge:

  1. Current consumption of the device (via CC Count / Offset or similar method)

  2. Remaining battery percentage

  3. Battery voltage

Questions:

  1. Could you please provide the recommended procedure or initialization steps to accurately obtain these values from the fuel gauge?

  2. Is it necessary to perform calibration using the EV2300 tool, or can we instead rely on the Host System Calibration Method?
    (We are referring to the method described in [this document/link]).

We would appreciate guidance on best practices for setup and calibration, especially for systems without access to TI's hardware tools.

Thank you for your support!

Regards,
Jay kapadiya
Waveinnova 

  • 0
    TI__Mastermind 26395 points

    Hello Jay,

    jay kapadiya said:
    Could you please provide the recommended procedure or initialization steps to accurately obtain these values from the fuel gauge?

    -I've attached the documents that are useful for start up along with the product page link that contains more information about the gauge aswell. I would emphasize in using the EVM and start guide

    Start Guide for the BQ27546-G1:
    https://www.ti.com/lit/an/slua917/slua917.pdf?ts=1746821891910&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ27546-G1

    EVM:
    https://www.ti.com/lit/ug/sluub83/sluub83.pdf?ts=1746821903559&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ27546-G1

    jay kapadiya said:
    Is it necessary to perform calibration using the EV2300 tool, or can we instead rely on the Host System Calibration Method?
    (We are referring to the method described in [this document/link]).

    You have the ability to use BQStudio or follow Host System Calibration Method.

    Thank you,
    Alan

  • 0 in reply to Alan Frias
    Prodigy 110 points

    Hi Alan,

    I’d like to clarify a few points regarding calibration for the BQ27546-G1 fuel gauge.

    What I’m asking is:

    1. Between BQStudio and the Host System Calibration Method, which is more reliable and accurate for successfully fulfilling our requirements (current measurement, battery percentage, and voltage)?

    2. What are the key differences between BQStudio and the Host System Calibration Method in terms of process, capabilities, and outcomes?

    3. In which types of applications is the Host System Calibration Method most commonly used, and in what scenarios is BQStudio typically preferred?

    Your insights will really help us determine the best approach for our system.

    Thanks,
    Jay

     

  • 0 in reply to jay kapadiya
    TI__Mastermind 26395 points

    Hello Jay,

    jay kapadiya said:
    Between BQStudio and the Host System Calibration Method, which is more reliable and accurate for successfully fulfilling our requirements (current measurement, battery percentage, and voltage)?

    -They both should get the same accuracy but in terms of reliability you may see better results with BQstudio due to easier interface you would see leading to a better chance that your updates will go through. However in terms of application it should be the same 

    jay kapadiya said:

    • What are the key differences between BQStudio and the Host System Calibration Method in terms of process, capabilities, and outcomes?

    -Process would be much more easier to do with BQstudio since all the configuration and values are aviable within one interface but the capabilities and outcome should be the same.

    jay kapadiya said:
    In which types of applications is the Host System Calibration Method most commonly used, and in what scenarios is BQStudio typically preferred?

    -Host system calibration is mainly used when the system is already in the field versus BQStudio is preferred during the research and development stage of a project and allows the user to update values and bring up the software aspect from start to finish.

    Thank you,
    Alan