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Original question:

WEBENCH®工具/ BQ78350-R1： BQ78350 after shutdown and restart, the SOH was updated from 100% to 78%. Is there any way for him...

WEBENCH®工具/ BQ78350-R1： Can you provide the documentation of the newly added register for bq78350-r1 upgrade to bq78350-r2?

BMS
Prodigy 210 points
Part Number: BQ78350-R1

Tool/software: WEBENCH® Design Tools

Can you provide the documentation of the newly added register for bq78350-r1 upgrade to bq78350-r2?I am in

"Bq78350-r1 TRM Addendum for the bq78350-r2 Device/bq78350-r1 & r2.pdf"

Many registers are not provided in the document. Is there any other technical document about bq78350-r2?

What does figure HT mean?

  • 0
    TI__Guru* 81034 points

    Hi,

    The only document available currently is the TRM Addendum. I will try to highlight all of the Register differences below and will look into adding these to the documentation in the future.

    • Operation Status A: PDSG bit added (indicates Pre-Discharge FET is enabled). The SAFE and HCFET bits have shifted over on spot as a result
    • Temp Range: The R2 has more temperature ranges defined by T1 Temp -T6Temp . As a result, this register has changed: 
    • R1: OT HT ST LT UT  (over-temp, high-temp, standard temp, low temp, under temp)
    • R2: OT HT STH RT STL LT UT (over-temp, high-temp, standard-temp-high, recommended-temp, standard-temp-low, low-temp, under-temp)
    • Charging Status: MCHG added (maintenance Charging current). Voltage ranges have changed:
      • R1: FCHG PCHG (fast charge, pre-charge)
      • R2: HV MV LV PV (high-voltage, medium-voltage, low-voltage, pre-charge voltage) These are defined by the Voltage Ranges in data flash.
    • Manufacturing Status: PDSG_EN bit has been added

    I hope this helps.

    Best regards,

    Matt

  • 0 in reply to Matt Sunna
    Prodigy 210 points
    1. What are the differences between OT HT ST LT UT and UTD UTC OTD OTC?
    2. OT HT ST LT UT where are these temperature Settings set?
  • 0 in reply to BMS
    TI__Guru* 81034 points

    OT HT ST LT UT represent the ranges set by the Temperature Ranges in data flash. See section 2.5 and Section 5.6 of the BQ78350-R1 Technical Reference Manual for a visual description and the corresponding data flash locations. These are indicators of which range the measured temperature is currently in.

    UTD UTC OTD OTC are fault condition indicators. (Under-temperature during Discharge, Under-temperature during Charge, ...)

    Best regards,

    Matt