SDAA281 July   2026 BQ34Z100-R2

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Minimum Parameters
    1. 2.1  Design Capacity
    2. 2.2  Design Voltage
    3. 2.3  Design Energy
    4. 2.4  Load Mode
    5. 2.5  Load Select
    6. 2.6  Cell Charging Voltage TX-TY
    7. 2.7  Number of Series Cell
    8. 2.8  Flash Update OK Cell Voltage
    9. 2.9  Cell Terminate Voltage
    10. 2.10 Taper Current
    11. 2.11 DSG Current Threshold
    12. 2.12 CHG Current Threshold
    13. 2.13 Quit Current Threshold
    14. 2.14 ChemID
  6. 3 Learning Cycle
  7. 4 Calibration
    1. 4.1 Current Calibration
    2. 4.2 Voltage Calibration and Voltage Divider
    3. 4.3 CC Offset Routine
  8. 5 Scaling
  9. 6 Additional Key Parameters and Features
    1. 6.1 OCV Wait Time
    2. 6.2 SOH Load I
    3. 6.3 Voltage Divider Parameter
    4. 6.4 RA Table Limiters
    5. 6.5 T Rise and T Time Constant
    6. 6.6 Auto Calibration
    7. 6.7 Smoothing
    8. 6.8 Sealed SRECs
  10. 7 Hardware
    1. 7.1 VEN Pin
    2. 7.2 Thermistor
    3. 7.3 Sense Resistor
    4. 7.4 Voltage Divider Calculation
    5. 7.5 LEDs
  11. 8 Chemistries
    1. 8.1 LFP
    2. 8.2 NiMH/NiCd
  12. 9 Debugging
  13. 10G1
  14. 11Reference Design
  15. 12Summary
  16. 13References

2.8 Flash Update OK Cell Voltage

The voltage reported by the gauge (Voltage() 0x8/0x9) must be greater than the Flash Update OK Cell Voltage in mV, if it is less than, then writes to data flash fails. This parameter is used to prevent the gauge from dropping below the 2.4V threshold required for flash writes.