I am designing a battery management system. I am however unable to comprehend the way in which EEPROM can be accessed to feed OCD (Over Current Delay) values. I have attached the datasheet: https://www.ti.com/lit/ds/symlink/bq77915.pdf?ts=1640062055629&ref_url=https%253A%252F%252Fwww.mouser.in%252F

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Edit: I found this in page 21 of datasheet. enter image description here


1 Answer 1


EEPROM can't be accessed by users, it is factory programmed.


  • \$\begingroup\$ Please refer "EDIT" in main post. \$\endgroup\$
    – BlackHawk
    Dec 22, 2021 at 12:16
  • \$\begingroup\$ @BlackHawk What you quoted does not mean the EEPROM is user programmable. TI can program the EEPROM in any way they want during production. All the different BQ77915XX devices are identical parts that are just factory programmed with different values into EEPROM. See page 14 of the datasheet where it says that settings are factory-programmed in the detailed chip description. \$\endgroup\$
    – Justme
    Dec 22, 2021 at 12:49
  • \$\begingroup\$ Got it! Thank you! \$\endgroup\$
    – BlackHawk
    Dec 22, 2021 at 13:10

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