BQ34Z120

The bq34z100 and bq34z110 were move to NRND and the bq34z120 will not be released. The bq34z100-G1 was released to support Li-Ion, LiFePO4, PbA, NiMH and NiCd chemistries.

Hi Tom,
I have an eval board with a bq34Z100-G1 installed. I have been trying to get it working with 12 NiMH standard 1.2V cells arranged serially. For some reason I cannot get the SOC values to change. It stays at 0% continuously.

Hi Tom,
I hit the reply button too quickly. Could I send you my register and data memory listings? Possibly you can tell me what I have set up incorrectly.

Yes, export an srec file and I will check it.

Hi Tom,
Thanks
John

* Texas Instruments Data Flash File
* File created Mon Jul 13 15:57:11 2015
*
* Device Number 100
* Firmware Version 0.16
* Build Number not available
* Order Number not available
*
* bqz Device Number 100
* bqz Firmware Version 0.16
* bqz Build Number 17
*
* Field Order: Class name Subclass name Parameter name Parameter Value Units
Configuration Safety OT Chg 55 1degC
Configuration Safety OT Chg Time 2 Seconds
Configuration Safety OT Chg Recovery 50 1degC
Configuration Safety OT Dsg 60 1degC
Configuration Safety OT Dsg Time 2 Seconds
Configuration Safety OT Dsg Recovery 55 1degC
Configuration Charge Inhibit Cfg Chg Inhibit Temp Low 0 1degC
Configuration Charge Inhibit Cfg Chg Inhibit Temp High 45 1degC
Configuration Charge Inhibit Cfg Temp Hys 5 1degC
Configuration Charge Suspend Low Temp -5 1degC
Configuration Charge Suspend High Temp 55 1degC
Configuration Charge Pb EFF Efficiency 100 %
Configuration Charge Pb Temp Comp 24.96 %
Configuration Charge Pb Drop Off Percent 96 %
Configuration Charge Pb Reduction Rate 10 %
Configuration Charge Termination Taper Current 100 mAmp
Configuration Charge Termination Min Taper Capacity 25 mAmpHr
Configuration Charge Termination Cell Taper Voltage 100 mVolt
Configuration Charge Termination Current Taper Window 40 Seconds
Configuration Charge Termination TCA Set % 99 Percent
Configuration Charge Termination TCA Clear % 95 Percent
Configuration Charge Termination FC Set % 100 Percent
Configuration Charge Termination FC Clear % 98 Percent
Configuration Charge Termination DODatEOC Delta T 10 1degC
Configuration Charge Termination NiMH Delta Temp 3 1degC
Configuration Charge Termination NiMH Delta Temp Time 180 Seconds
Configuration Charge Termination NiMH Hold Off Time 100 Seconds
Configuration Charge Termination NiMH Hold Off Current 240 mAmp
Configuration Charge Termination NiMH Hold Off Temp 25 1degC
Configuration Charge Termination NiMH Cell Negative Delta Volt 17 mVolt
Configuration Charge Termination NiMH Cell Negative Delta Time 16 Seconds
Configuration Charge Termination NiMH Cell Neg Delta Qual Volt 100 mVolt
Configuration Data Manufacture Date 01/01/1980 Day + Mo*32 + (Yr -1980)*256
Configuration Data Serial Number 1 hex
Configuration Data Cycle Count 0 Count
Configuration Data CC Threshold 1800 mAmpHr
Configuration Data Max Error Limit 100 %
Configuration Data Design Capacity 2000 MilliAmpHour
Configuration Data Design Energy 28800 MilliWattHour
Configuration Data SOH Load I -400 MilliAmp
Configuration Data Cell Charge Voltage T1-T2 1400 mV
Configuration Data Cell Charge Voltage T2-T3 1800 mV
Configuration Data Cell Charge Voltage T3-T4 1400 mV
Configuration Data Charge Current T1-T2 10 Percent
Configuration Data Charge Current T2-T3 50 Percent
Configuration Data Charge Current T3-T4 30 Percent
Configuration Data JEITA T1 0 degC
Configuration Data JEITA T2 10 degC
Configuration Data JEITA T3 45 degC
Configuration Data JEITA T4 55 degC
Configuration Data Design Energy Scale 1 Number
Configuration Data Device Name bq34z100-G1 -
Configuration Data Manufacturer Name Texas Inst. -
Configuration Data Device Chemistry NiMH -
Configuration Discharge SOC1 Set Threshold 150 mAh
Configuration Discharge SOC1 Clear Threshold 175 mAh
Configuration Discharge SOCF Set Threshold 180 mAh
Configuration Discharge SOCF Clear Threshold 180 mAh
Configuration Discharge Cell BL Set Volt Threshold 900 mVolt
Configuration Discharge Cell BL Set Volt Time 2 Seconds
Configuration Discharge Cell BL Clear Volt Threshold 950 mVolt
Configuration Discharge Cell BH Set Volt Threshold 1400 mVolt
Configuration Discharge Cell BH Volt Time 2 Seconds
Configuration Discharge Cell BH Clear Volt Threshold 1350 mVolt
Configuration Discharge Cycle Delta 0.05 %
Configuration Manufacturer Data Pack Lot Code 0 hex
Configuration Manufacturer Data PCB Lot Code 0 hex
Configuration Manufacturer Data Firmware Version 0 hex
Configuration Manufacturer Data Hardware Revision 0 hex
Configuration Manufacturer Data Cell Revision 0 hex
Configuration Manufacturer Data DF Config Version 0 hex
Configuration Lifetime Data Lifetime Max Temp 85 1degC
Configuration Lifetime Data Lifetime Min Temp -40 1degC
Configuration Lifetime Data Lifetime Max Chg Current 660 mAmp
Configuration Lifetime Data Lifetime Max Dsg Current 3000 mA
Configuration Lifetime Data Lifetime Max Pack Voltage 1080 20mV
Configuration Lifetime Data Lifetime Min Pack Voltage 45 20mV
Configuration Lifetime Temp Samples LT Flash Cnt 0 Count
Configuration Registers Pack Configuration 08d9 flags
Configuration Registers Pack Configuration B af flags
Configuration Registers Pack Configuration C 37 flags
Configuration Registers LED_Comm Configuration 0 flags
Configuration Registers Alert Configuration 0 flags
Configuration Registers Number of series cell 12 num
Configuration Lifetime Resolution LT Temp Res 10 1degC
Configuration Lifetime Resolution LT Cur Res 100 mA
Configuration Lifetime Resolution LT V Res 1 20mV
Configuration Lifetime Resolution LT Update Time 60 Seconds
Configuration LED Display LED Hold Time 4 Num
Configuration Power Flash Update OK Cell Volt 2500 mVolt
Configuration Power Sleep Current 10 mAmp
Configuration Power FS Wait 0 Seconds
System Data Manufacturer Info Block A 0 0 hex
System Data Manufacturer Info Block A 1 0 hex
System Data Manufacturer Info Block A 2 0 hex
System Data Manufacturer Info Block A 3 0 hex
System Data Manufacturer Info Block A 4 0 hex
System Data Manufacturer Info Block A 5 0 hex
System Data Manufacturer Info Block A 6 0 hex
System Data Manufacturer Info Block A 7 0 hex
System Data Manufacturer Info Block A 8 0 hex
System Data Manufacturer Info Block A 9 0 hex
System Data Manufacturer Info Block A 10 0 hex
System Data Manufacturer Info Block A 11 0 hex
System Data Manufacturer Info Block A 12 0 hex
System Data Manufacturer Info Block A 13 0 hex
System Data Manufacturer Info Block A 14 0 hex
System Data Manufacturer Info Block A 15 0 hex
System Data Manufacturer Info Block A 16 0 hex
System Data Manufacturer Info Block A 17 0 hex
System Data Manufacturer Info Block A 18 0 hex
System Data Manufacturer Info Block A 19 0 hex
System Data Manufacturer Info Block A 20 0 hex
System Data Manufacturer Info Block A 21 0 hex
System Data Manufacturer Info Block A 22 0 hex
System Data Manufacturer Info Block A 23 0 hex
System Data Manufacturer Info Block A 24 0 hex
System Data Manufacturer Info Block A 25 0 hex
System Data Manufacturer Info Block A 26 0 hex
System Data Manufacturer Info Block A 27 0 hex
System Data Manufacturer Info Block A 28 0 hex
System Data Manufacturer Info Block A 29 0 hex
System Data Manufacturer Info Block A 30 0 hex
System Data Manufacturer Info Block A 31 0 hex
Gas Gauging IT Cfg Load Select 1 Number
Gas Gauging IT Cfg Load Mode 0 Number
Gas Gauging IT Cfg Res Current 10 mAmp
Gas Gauging IT Cfg Max Res Factor 50 num
Gas Gauging IT Cfg Min Res Factor 1 num
Gas Gauging IT Cfg Ra Filter 500 num
Gas Gauging IT Cfg Min PassedChg NiMH-LA 1st Qmax 50 %
Gas Gauging IT Cfg Maximum Qmax Change 100 %
Gas Gauging IT Cfg Cell Terminate Voltage 1800 mVolt
Gas Gauging IT Cfg Cell Term V Delta 50 mVolt
Gas Gauging IT Cfg ResRelax Time 500 Seconds
Gas Gauging IT Cfg User Rate-mA 0 MilliAmp
Gas Gauging IT Cfg User Rate-Pwr 0 mW/cW
Gas Gauging IT Cfg Reserve Cap-mAh 0 MilliAmpHour
Gas Gauging IT Cfg Reserve Energy 0 mWh/cWh
Gas Gauging IT Cfg Max Scale Back Grid 4 num
Gas Gauging IT Cfg Cell Min DeltaV 0 mVolt
Gas Gauging IT Cfg Ra Max Delta 15 %
Gas Gauging IT Cfg Design Resistance 42 mOhms
Gas Gauging IT Cfg Reference Grid 4 -
Gas Gauging IT Cfg Qmax Max Delta % 10 mAmpHour
Gas Gauging IT Cfg Max Res Scale 32000 Num
Gas Gauging IT Cfg Min Res Scale 1 Num
Gas Gauging IT Cfg Fast Scale Start SOC 10 %
Gas Gauging IT Cfg Charge Hys V Shift 40 mVolt
Gas Gauging IT Cfg Smooth Relax Time 1000 s
Gas Gauging Current Thresholds Dsg Current Threshold 60 mAmp
Gas Gauging Current Thresholds Chg Current Threshold 75 mAmp
Gas Gauging Current Thresholds Quit Current 40 mAmp
Gas Gauging Current Thresholds Dsg Relax Time 60 Seconds
Gas Gauging Current Thresholds Chg Relax Time 60 Seconds
Gas Gauging Current Thresholds Cell Max IR Correct 400 mV
Gas Gauging State Qmax Cell 0 2000 mAmpHr
Gas Gauging State Cycle Count 0 num
Gas Gauging State Update Status 0 num
Gas Gauging State Cell V at Chg Term 1339 mVolt
Gas Gauging State Avg I Last Run -299 mAmp
Gas Gauging State Avg P Last Run -1131 MilliWattHour
Gas Gauging State Cell Delta Voltage 2 mVolt
Gas Gauging State T Rise 20 Num
Gas Gauging State T Time Constant 1000 Num
Ra Tables Ra0 Table Ra Flag ff55 Hex
Ra Tables Ra0 Table Ra 0 55 Num
Ra Tables Ra0 Table Ra 1 70 Num
Ra Tables Ra0 Table Ra 2 98 Num
Ra Tables Ra0 Table Ra 3 99 Num
Ra Tables Ra0 Table Ra 4 98 Num
Ra Tables Ra0 Table Ra 5 96 Num
Ra Tables Ra0 Table Ra 6 89 Num
Ra Tables Ra0 Table Ra 7 128 Num
Ra Tables Ra0 Table Ra 8 144 Num
Ra Tables Ra0 Table Ra 9 163 Num
Ra Tables Ra0 Table Ra 10 219 Num
Ra Tables Ra0 Table Ra 11 355 Num
Ra Tables Ra0 Table Ra 12 546 Num
Ra Tables Ra0 Table Ra 13 3153 Num
Ra Tables Ra0 Table Ra 14 14005 Num
Ra Tables Ra0x Table Ra Flag ffff Hex
Ra Tables Ra0x Table Ra 0 55 Num
Ra Tables Ra0x Table Ra 1 70 Num
Ra Tables Ra0x Table Ra 2 98 Num
Ra Tables Ra0x Table Ra 3 99 Num
Ra Tables Ra0x Table Ra 4 98 Num
Ra Tables Ra0x Table Ra 5 96 Num
Ra Tables Ra0x Table Ra 6 89 Num
Ra Tables Ra0x Table Ra 7 128 Num
Ra Tables Ra0x Table Ra 8 144 Num
Ra Tables Ra0x Table Ra 9 163 Num
Ra Tables Ra0x Table Ra 10 219 Num
Ra Tables Ra0x Table Ra 11 355 Num
Ra Tables Ra0x Table Ra 12 546 Num
Ra Tables Ra0x Table Ra 13 3153 Num
Ra Tables Ra0x Table Ra 14 14005 Num
Calibration Data CC Gain 10.123 mohm
Calibration Data CC Delta 10.147 mohm
Calibration Data CC Offset -1365 num
Calibration Data Board Offset 89 num
Calibration Data Int Temp Offset 0 degC
Calibration Data Ext Temp Offset 0 degC
Calibration Data Voltage Divider 21600 mVolt
Calibration Current Deadband 5 mAmp
Security Codes Sealed to Unsealed 36720414 hex
Security Codes Unsealed to Full ffffffff hex
Security Codes Authen Key3 1234567 hex
Security Codes Authen Key2 89abcdef hex
Security Codes Authen Key1 fedcba98 hex
Security Codes Authen Key0 76543210 hex

The Cell Term V and Flash Update OK Voltage parameters are too high. Try the attached srec file and then calibrate the voltage.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/0100_5F00_0_5F00_16_2D00_bq34z100G1_5F00_NiMH.srec