• BQ27Z561-R2: low temperature optimization issue

  

  Lv Jerry

  Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 , GPCRB , BQSTUDIO Tool/software: 1round_verify.csv round1_low_optimize_20250807-report.zip round2_low_optimize.zip Hi, Currently we have some issue with gauge BQ27z561 low temp…

  • 2 months ago
  • Power management
  • Power management forum

• BQ27Z561-R2: the difference between device type and device number

  

  Fabio Gou

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Tool/software: What is the difference between device type and device number? Taking bq27z7561R2 as an example, when reading device type as 6115 and device number as 1561, it seems that only the high and low bits are opposite.…

  • 7 months ago
  • Power management
  • Power management forum

• BQ27Z561-R2: config parameter required for bq27z561-R2 device

  

  craig

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 , BQSTUDIO Tool/software: Hello, Trying to confirm what 'minimally', is required. Pulling this info from a combination of the TRM and b27z561 evm guid (note this is not R2) - these…

  • over 1 year ago
  • Power management
  • Power management forum

• BQ27Z561-R2: the status register(BatteryStatus) got by Linux i2c driver is 0xFFFF sometimes

  

  Lv Jerry

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQ27Z561 , BQSTUDIO Tool/software: Hi, Our product use the BQ27z561 as the fuel gauge, the gauge connected to the CPU by I2C, and our OS is Linux(kernel 5.15). During our test, we use the I2C…

  • 4 months ago
  • Power management
  • Power management forum

• BQ27Z561-R2: bq27z561-R2. Dsg/Chg Current Thresholds NOT reading back as expected-POSSIBLE ERROR?

  

  craig

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Other Parts Discussed in Thread: BQSTUDIO , BQ27Z561 Tool/software: Hello, Trying to manually read these data flash items to print out and confimr their set correctly. They current do not come back as the same value as read…

  • over 1 year ago
  • Power management
  • Power management forum

• BQ27Z561-R2: DOCUMENTATION ERROR? bq27z561 how to get interruptstatus()

  

  craig

  Part Number: BQ27Z561-R2 Tool/software: InterruptStatus() is listed as a data command read only...but scanning through the documentation lower it says it reports info on macdata()??? If it does the later then you likely have to write to it. Which…

  • over 1 year ago
  • Power management
  • Power management forum

• BQ27Z561-R2: FCC register status read and write

  

  Kailun Liu

  Part Number: BQ27Z561-R2 Tool/software: Hi Team, Can full charge capacity been modified by directly writing the register?

  • over 1 year ago
  • Power management
  • Power management forum

• BQ27Z561-R2: Further details and instructions on Current() and AverageCurrent().

  

  Tom Tsao

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Tool/software: Hi E2E, Could you also provide me with the document mentioned by Jackson in the following E2E link? BQ27Z561-R2: How does AverageCurrent() function? - Power management forum - Power management - TI E2E support…

  • over 1 year ago
  • Power management
  • Power management forum

• BQ27Z561-R2: FCC update criteria

  

  Elias Xiao

  TI Thinks Resolved

  Part Number: BQ27Z561-R2 Tool/software: Hello, I noticed that the FCC update is related to temperature. May I ask how long it takes for the FCC to update when the temperature changes by more than 5 degrees? Is it an immediate update?

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• RE: BQ27Z561: BQ27Z561-R2 TRM TEMPERATURE CALIBRATION ERROR/OMISSION

  

  Jonny

  Resolved

  Hello Craig, This is documented in the BQ27z561-R2 TRM. Regards, Jonny.

  • over 1 year ago
  • Power management
  • Power management forum

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