• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 249 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

BQ78350-R1: How to change the Chemical ID & Device Chemistry

BQ78350-R1： BQ78350-R1

user6330838
Prodigy 10 points
Part Number: BQ78350-R1
Other Parts Discussed in Thread: GPCCEDV

Hi

TI的工程师，请教一个问题

1.使用bq78350-R1需要做化学ID吗?

2.做CEDV的6条曲线是，放电电流是多少C，有没有规定？如下是说在不同温度下做放电

下图要求记录数据，每个数对应的是什么呢？

  • 0
    TI__Guru* 81034 points

    Hi,

    The Gas Gauging Section (starting on page 6) of the Using the BQ78350-R1 app note explains the ChemID and the process for generating the CEDV coefficients: http://www.ti.com/lit/an/slua924/slua924.pdf

    Selecting a ChemID might not be necessary depending on the application. It is only used after a reset or coming out of Shutdown to estimate the SOC and Remaining Capacity based on the cell voltages. If the application will not put the device into Shutdown, then the ChemID may not be necessary.

    The CEDV coefficients are important for accurate gauging over different load currents and temperature. Follow the app note instructions and the instructions from the GPCCEDV tool to collect the log files. After you submit the log files to the online tool, you can program these coefficients to the device data flash.

    Best regards,

    Matt