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Part Number: BQ20Z95
Dear colleague,
Our customer is using BQ20Z95, after a period of normal operation. Pack can't be charged or discharged.
They review the data as below:
When they write the configuration file from the problematic board to a normal board, the normal board can't work right.
I think the reason may be the MCU do the wrong operation in Data Flash reading or writing process.
So do you have some suggestions?
B.R
Rock Su
Thanks a lot!
But how to avoid this problem? Below is the configuration file that happened error.
[Header]
bq EVSW Version = 0.9.90
DeviceName = bq20z95 v1.50
Time = 2019-03-11 19:48:28
[Voltage(1st Level Safety)]
COV Threshold = 4300
COV Time = 2
COV Recovery = 4150
COV Delta = 10
COV Temp. Hys = 5.0
POV Threshold = 17200
POV Time = 2
POV Recovery = 16400
CUV Threshold = 2800
CUV Time = 1
CUV Recovery = 3100
PUV Threshold = 11200
PUV Time = 1
PUV Recovery = 12400
[Current(1st Level Safety)]
OC (1st Tier) Chg = 10000
OC (1st Tier) Chg Time = 1
OC Chg Recovery = 30
OC (1st Tier) Dsg = 20000
OC (1st Tier) Dsg Time = 1
OC Dsg Recovery = 30
OC (2nd Tier) Chg = 11000
OC (2nd Tier) Chg Time = 1
OC (2nd Tier) Dsg = 21000
OC (2nd Tier) Dsg Time = 1
Current Recovery Time = 30
AFE OC Dsg = 0B
AFE OC Dsg Time = 0C
AFE OC Dsg Recovery = 15
AFE SC Chg Cfg = 70
AFE SC Dsg Cfg = 6A
AFE SC Recovery = 15
[Temperature(1st Level Safety)]
Over Temp Chg = 75.0
OT Chg Time = 0
OT Chg Recovery = 65.0
Over Temp Dsg = 80.0
OT Dsg Time = 0
OT Dsg Recovery = 65.0
[Host Comm(1st Level Safety)]
Host Watchdog Timeout = 0
[Voltage(2nd Level Safety)]
SOV Threshold = 17500
SOV Time = 0
Cell Imbalance Current = 5
Cell Imbalance Fail Voltage = 1000
Cell Imbalance Time = 0
Battery Rest Time = 0
Min CIM-check voltage = 3000
PFIN Detect Time = 0
[Current(2nd Level Safety)]
SOC Chg = 15000
SOC Chg Time = 0
SOC Dsg = 17000
SOC Dsg Time = 0
[Temperature(2nd Level Safety)]
SOT Chg = 90.0
SOT Chg Time = 0
SOT Dsg = 90.0
SOT Dsg Time = 0
Open Thermistor = -50.0
Open Time = 0
[FET Verification(2nd Level Safety)]
FET Fail Limit = 20
FET Fail Time = 0
[AFE Verification(2nd Level Safety)]
AFE Check Time = 0
AFE Fail Limit = 0
AFE Fail Recovery Time = 0
AFE Init Retry Limit = 6
AFE Init Limit = 20
[Fuse Verification(2nd Level Safety)]
Fuse Fail Limit = 2
Fuse Fail Time = 0
[Charge Inhibit Cfg(Charge Control)]
Chg Inhibit Temp Low = -20.0
Chg Inhibit Temp High = 75.0
Temp Hys = 1.0
[Pre-Charge Cfg(Charge Control)]
Pre-chg Current = 260
Pre-chg Temp = -5.0
Pre-chg Voltage = 2000
Recovery Voltage = 2200
[Fast Charge Cfg(Charge Control)]
Fast Charge Current = 5000
Charging Voltage = 16800
Delta Temp = 0.0
Suspend Low Temp = -20.0
Suspend High Temp = 75.0
[Pulse Charge Cfg(Charge Control)]
Turn ON Voltage = 4350
Turn OFF Voltage = 4450
Max ON Pulse Time = 60.00
Min OFF Pulse Time = 0.00
Max OFF Voltage = 4470
[Termination Cfg.(Charge Control)]
Maintenance Current = 0
Taper Current = 400
Taper Voltage = 200
Current Taper Window = 10
TCA Set % = 100
TCA Clear % = 99
FC Set % = 100
FC Clear % = 99
[Cell Balancing Cfg(Charge Control)]
Min Cell Deviation = 0
[Charging Faults(Charge Control)]
Over Charging Voltage = 2000
Over Charging Volt Time = 2
Over Charging Current = 2000
Over Charging Curr Time = 2
Over Charging Curr Recov = 100
Depleted Voltage = 1
Depleted Voltage Time = 2
Depleted Recovery = 2
Over Charge Capacity = 2500
Over Charge Recovery = 2
FC-MTO = 65535
PC-MTO = 65535
Charge Fault Cfg = 00
[Data(SBS Configuration)]
Rem Cap Alarm = 500
Rem Energy Alarm = 7400
Rem Time Alarm = 10
Init Battery Mode = 0081
Design Voltage = 14800
Spec Info = 0031
Manuf Date = 30-Sep-2017
Ser. Num. = B42F
Cycle Count = 7
CC Threshold = 10000
CC % = 90
CF MaxError Limit = 100
Design Capacity = 12000
Design Energy = 177600
Manuf Name = ZFKJ
Device Name = ADFVCA1
Device Chemistry = LION
[Configuration(SBS Configuration)]
TDA Set % = -1
TDA Clear % = -1
FD Set % = -1
FD Clear % = -1
TDA Set Volt Threshold = 5000
TDA Set Volt Time = 5
TDA Clear Volt = 5500
FD Set Volt Threshold = 5000
FD Volt Time = 5
FD Clear Volt = 5500
[Manufacturer Data(System Data)]
Pack Lot Code = 0001
PCB Lot Code = 000A
Firmware Version = 0001
Hardware Revision = 000A
Cell Revision = 0001
[Manufacturer Info(System Data)]
Manuf. Info = BAT
[Lifetime Data(System Data)]
Lifetime Max Temp = 39.7
Lifetime Min Temp = -.7
Lifetime Max Cell Voltage = 4350
Lifetime Min Cell Voltage = 0
Lifetime Max Pack Voltage = 17041
Lifetime Min Pack Voltage = 275
Lifetime Max Chg Current = 5015
Lifetime Max Dsg Current = -6000
Lifetime Max Chg Power = 82550
Lifetime Max Dsg Power = -88800
Life Max AvgDsg Cur = -4000
Life Max AvgDsg Pow = -10000
Lifetime Avg Temp = 16.8
[Lifetime Temp Samples(System Data)]
LT Temp Samples = 92173
[Registers(Configuration)]
Operation Cfg A = 0321
Operation Cfg B = 2F08
Operation Cfg C = 0005
Permanent Fail Cfg = 0000
Non-Removable Cfg = 0000
[AFE(Configuration)]
AFE.State_CTL = 00
[LED Cfg(LED Support)]
LED Flash Rate = 2.000
LED Blink Rate = 1.000
LED Delay = 4.9
LED Hold Time = 3
CHG Flash Alarm = 10
CHG Thresh 1 = 0
CHG Thresh 2 = 20
CHG Thresh 3 = 40
CHG Thresh 4 = 60
CHG Thresh 5 = 80
DSG Flash Alarm = 10
DSG Thresh 1 = 0
DSG Thresh 2 = 20
DSG Thresh 3 = 40
DSG Thresh 4 = 60
DSG Thresh 5 = 80
Sink Current = 3
[Power(Power)]
Flash Update OK Voltage = 10000
Shutdown Voltage = 8000
Shutdown Time = 10
Cell Shutdown Voltage = 2200
Cell Shutdown Time = 10
Charger Present = 3000
Sleep Current = 15
Bus Low Time = 2
Cal Inhibit Temp Low = 5.0
Cal Inhibit Temp High = 45.0
Sleep Voltage Time = 15
Sleep Current Time = 5
Wake Current Reg = 02
[IT Cfg(Gas Gauging)]
Load Select = 4
Load Mode = 0
Term Voltage = 12400
User Rate-mA = 0
User Rate-mW = 0
Reserve Cap-mAh = 0
Reserve Cap-mWh = 0
[Current Thresholds(Gas Gauging)]
Dsg Current Threshold = 50
Chg Current Threshold = 50
Quit Current = 20
Dsg Relax Time = 5
Chg Relax Time = 10
[State(Gas Gauging)]
Qmax Cell 0 = 12000
Qmax Cell 1 = 12000
Qmax Cell 2 = 12000
Qmax Cell 3 = 12000
Qmax Pack = 12000
Update Status = 06
Avg I Last Run = -3883
Avg P Last Run = -5610
Delta Voltage = 225
[R_a0(Ra Table)]
Cell0 R_a flag = 0055
Cell0 R_a 0 = 57
Cell0 R_a 1 = 57
Cell0 R_a 2 = 55
Cell0 R_a 3 = 64
Cell0 R_a 4 = 73
Cell0 R_a 5 = 84
Cell0 R_a 6 = 97
Cell0 R_a 7 = 105
Cell0 R_a 8 = 107
Cell0 R_a 9 = 110
Cell0 R_a 10 = 115
Cell0 R_a 11 = 124
Cell0 R_a 12 = 136
Cell0 R_a 13 = 411
Cell0 R_a 14 = 3308
[R_a1(Ra Table)]
Cell1 R_a flag = 0055
Cell1 R_a 0 = 63
Cell1 R_a 1 = 63
Cell1 R_a 2 = 59
Cell1 R_a 3 = 68
Cell1 R_a 4 = 76
Cell1 R_a 5 = 88
Cell1 R_a 6 = 98
Cell1 R_a 7 = 108
Cell1 R_a 8 = 109
Cell1 R_a 9 = 112
Cell1 R_a 10 = 116
Cell1 R_a 11 = 127
Cell1 R_a 12 = 138
Cell1 R_a 13 = 339
Cell1 R_a 14 = 2721
[R_a2(Ra Table)]
Cell2 R_a flag = 0055
Cell2 R_a 0 = 58
Cell2 R_a 1 = 60
Cell2 R_a 2 = 58
Cell2 R_a 3 = 66
Cell2 R_a 4 = 73
Cell2 R_a 5 = 84
Cell2 R_a 6 = 95
Cell2 R_a 7 = 104
Cell2 R_a 8 = 106
Cell2 R_a 9 = 109
Cell2 R_a 10 = 113
Cell2 R_a 11 = 122
Cell2 R_a 12 = 131
Cell2 R_a 13 = 327
Cell2 R_a 14 = 2630
[R_a3(Ra Table)]
Cell3 R_a flag = 0055
Cell3 R_a 0 = 58
Cell3 R_a 1 = 60
Cell3 R_a 2 = 58
Cell3 R_a 3 = 64
Cell3 R_a 4 = 73
Cell3 R_a 5 = 84
Cell3 R_a 6 = 95
Cell3 R_a 7 = 104
Cell3 R_a 8 = 106
Cell3 R_a 9 = 109
Cell3 R_a 10 = 113
Cell3 R_a 11 = 121
Cell3 R_a 12 = 131
Cell3 R_a 13 = 380
Cell3 R_a 14 = 3054
[R_a0x(Ra Table)]
xCell0 R_a flag = 0000
xCell0 R_a 0 = 57
xCell0 R_a 1 = 57
xCell0 R_a 2 = 55
xCell0 R_a 3 = 64
xCell0 R_a 4 = 73
xCell0 R_a 5 = 84
xCell0 R_a 6 = 97
xCell0 R_a 7 = 105
xCell0 R_a 8 = 107
xCell0 R_a 9 = 110
xCell0 R_a 10 = 115
xCell0 R_a 11 = 124
xCell0 R_a 12 = 130
xCell0 R_a 13 = 393
xCell0 R_a 14 = 3162
[R_a1x(Ra Table)]
xCell1 R_a flag = 0000
xCell1 R_a 0 = 63
xCell1 R_a 1 = 63
xCell1 R_a 2 = 59
xCell1 R_a 3 = 68
xCell1 R_a 4 = 76
xCell1 R_a 5 = 88
xCell1 R_a 6 = 98
xCell1 R_a 7 = 108
xCell1 R_a 8 = 109
xCell1 R_a 9 = 112
xCell1 R_a 10 = 116
xCell1 R_a 11 = 127
xCell1 R_a 12 = 129
xCell1 R_a 13 = 317
xCell1 R_a 14 = 2544
[R_a2x(Ra Table)]
xCell2 R_a flag = 0000
xCell2 R_a 0 = 58
xCell2 R_a 1 = 60
xCell2 R_a 2 = 58
xCell2 R_a 3 = 66
xCell2 R_a 4 = 73
xCell2 R_a 5 = 84
xCell2 R_a 6 = 95
xCell2 R_a 7 = 104
xCell2 R_a 8 = 106
xCell2 R_a 9 = 109
xCell2 R_a 10 = 113
xCell2 R_a 11 = 122
xCell2 R_a 12 = 127
xCell2 R_a 13 = 317
xCell2 R_a 14 = 2550
[R_a3x(Ra Table)]
xCell3 R_a flag = 0000
xCell3 R_a 0 = 58
xCell3 R_a 1 = 60
xCell3 R_a 2 = 58
xCell3 R_a 3 = 64
xCell3 R_a 4 = 73
xCell3 R_a 5 = 84
xCell3 R_a 6 = 95
xCell3 R_a 7 = 104
xCell3 R_a 8 = 106
xCell3 R_a 9 = 109
xCell3 R_a 10 = 113
xCell3 R_a 11 = 121
xCell3 R_a 12 = 125
xCell3 R_a 13 = 363
xCell3 R_a 14 = 2914
[Device Status Data(PF Status)]
PF Flags 1 = 0080
Fuse Flag = 00
PF Voltage = 0
PF C4 Voltage = 0
PF C3 Voltage = 0
PF C2 Voltage = 0
PF C1 Voltage = 0
PF Current = 0
PF Temperature = 0.0
PF Batt Stat = 00
PF RC-mAh = 0
PF RC-10mWh = 0
PF Chg Status = 0000
PF Safety Status = 0000
PF Flags 2 = 0000
[AFE Regs(PF Status)]
AFE Status = 00
AFE Output = 00
AFE State = 00
AFE Function = 00
AFE Cell Select = 00
AFE OLV = 00
AFE OLT = 00
AFE SCC = 00
AFE SCD = 00
[Data(Calibration)]
CC Gain = 5.137
CC Delta = 5.137
Ref Voltage = 1224.45
AFE Pack Gain = 672.91
CC Offset = -0.276
Board Offset = -58.3
Int Temp Offset = 2.1
Ext1 Temp Offset = -5.0
Ext2 Temp Offset = 0.0
[Config(Calibration)]
CC Current = 3000
Voltage Signal = 16800
Temp Signal = 298.0
CC Offset Time = 250
ADC Offset Time = 32
CC Gain Time = 250
Voltage Time = 1984
Temperature Time = 32
Cal Mode Timeout = 300
[Temp Model(Calibration)]
Ext Coef 1 = -28285
Ext Coef 2 = 20848
Ext Coef 3 = -7537
Ext Coef 4 = 401.2
Ext Min AD = 0
Ext Max Temp = 401.2
Int Coef 1 = 0
Int Coef 2 = 0
Int Coef 3 = -11136
Int Coef 4 = 575.4
Int Min AD = 0
Int Max Temp = 575.4
[Current(Calibration)]
Filter = 239
Deadband = 3
CC Deadband = 10.0
