你好。
我司使用的电池，已经与贵司的FAE人员协同一起完成了电池的黄金学习。
电池信息如下：
| Cell/Pack Info | |
| Cell/Pack Maker* | BYD |
| Cell/Pack Model* | LP113129 |
| Design Capacity* | 1230 |
| Charge Voltage* | Cell:4.40V |
| Cut Off Voltage* | 3.3V |
| Cell chemistry | Li-ion Battery |
基于黄金学习后的FS文件，我们核对了并整理了寄存器对应的配置值，还请协助确认一下如下寄存器配置为此值的原因。
部分寄存器，我们按照自己的理解填写了原因，也请同步确认一下是否正确。
如果需要其他补充信息，请及时联系。
谢谢！
| Bit Number | Bit Name | Description | Setting | Reason | |
| High Byte | Bit 7 | OT | Over-Temperature condition is detected. [OT] is set when Temperature() ≥ Over Temp (default = 55°C). [OT] is cleared when Temperature() < Over Temp – Temp Hys. |
0 | |
| Bit 6 | UT | Under-Temperature condition is detected. [UT] is set when Temperature() ≤ Under Temp (default = 0°C). [UT] is cleared when Temperature() > Under Temp + Temp Hys. |
0 | ||
| Bit 5 | RSVD | Bits 5:2 are reserved. | - | ||
| Bit 4 | RSVD | ||||
| Bit 3 | RSVD | ||||
| Bit 2 | RSVD | ||||
| Bit 1 | FC | Full charge is detected. If the FC Set% is a positive threshold, [FC] is set when SOC ≥ FC Set % and is cleared when SOC ≤ FC Clear % (default = 98%). By default, FC Set% = –1, therefore [FC] is set when the fuel gauge has detected charge termination. | 0 | ||
| Bit 0 | CHG | Fast charging allowed. If SOC changes from 98% to 99% during charging, the [CHG] bit is cleared. The [CHG] bit will become set again when SOC ≤ 95%. | 1 | ||
| Low Byte | Bit 7 | OCVTAKEN | Cleared on entry to RELAXATION mode and set to 1 when OCV measurement is performed in RELAXATION mode. | 1 | |
| Bit 6 | DOD CORRECT | This indicates that DOD correction is being applied | 0 | ||
| Bit 5 | ITPOR | Indicates a POR or RESET subcommand has occurred. If set, this bit generally indicates that the RAM configuration registers have been reset to default values and the host should reload the configuration parameters using the CONFIG UPDATE mode. This bit is cleared after the SOFT_RESET subcommand is received. | 0 | ||
| Bit 4 | CFGUPMODE | Fuel gauge is in CONFIG UPDATE mode. True when set. Default is 0 | 0 | ||
| Bit 3 | BAT_DET | Battery insertion detected. True when set. When OpConfig [BIE] is set, [BAT_DET] is set by detecting a logic high-to-low transition at the BIN pin. When OpConfig [BIE] is low, [BAT_DET] is set when host issues the BAT_INSERT subcommand and is cleared when host issues the BAT_REMOVE subcommand. Gaugepredictions are not valid unless [BAT_DET] is set. |
1 | ||
| Bit 2 | SOC1 | If set, StateOfCharge() ≤ SOC1 Set Threshold. The [SOC1] bit will remain set until StateOfCharge() ≥ SOC1Clear Threshold. | 1 | ||
| Bit 1 | SOCF | If set, StateOfCharge() ≤ SOCF Set Threshold. The [SOCF] bit will remain set until StateOfCharge() ≥ SOCF Clear Threshold. | 1 | ||
| Bit 0 | DSG | Discharging detected. True when set | 0 |
| CNTL Function | CNTL Data | Description | SEALED Access | Setting | Reason | ||
| CONTROL_STATUS | 0x0000 | Reports the status of device. | Yes | 0x008C | |||
| DEVICE_TYPE | 0x0001 | Reports the device type (0x0426). | Yes | 0x0426 | |||
| FW_VERSION | 0x0002 | Reports the firmware version of the device. | Yes | 0x0202 | |||
| DM_CODE | 0x0004 | Reports the Data Memory Code number stored in NVM. | Yes | 0x0000 | |||
| PREV_MACWRITE | 0x0007 | Returns previous MAC command code. | Yes | 0x0002 | |||
| CHEM_ID | 0x0008 | Reports the chemical identifier of the battery profile. | Yes | 0x3230 | |||
| BAT_INSERT | 0x000C | Forces the Flags() [BAT_DET] bit set when the OpConfig [BIE] bit is 0. | Yes | - | |||
| BAT_REMOVE | 0x000D | Forces the Flags() [BAT_DET] bit clear when the OpConfig [BIE] bit is 0. | Yes | - | |||
| SET_CFGUPDATE | 0x0013 | Forces the CONTROL_STATUS [CFGUPMODE] bit to 1 and the gauge enters CONFIG UPDATE mode. | No | - | |||
| SMOOTH_SYNC | 0x0019 | Synchronizes RemCapSmooth() and FCCSmooth() with RemCapTrue() and FCCTrue(). | Yes | - | |||
| SHUTDOWN_ENABLE | 0x001B | Enables device SHUTDOWN mode. | No | - | |||
| SHUTDOWN | 0x001C | Commands the device to enter SHUTDOWN mode. | No | - | |||
| SEALED | 0x0020 | Places the device in SEALED access mode. | No | - | |||
| PULSE_SOC_INT | 0x0023 | Commands the device to toggle the GPOUT pin for 1 ms. | Yes | - | |||
| CHEM_A | 0x0030 | Dynamically changes existing Chem ID to Chem ID - 3230. | No | - | |||
| CHEM_B | 0x0031 | Dynamically changes existing Chem ID to Chem ID - 1202. | No | - | |||
| CHEM_C | 0x0032 | Dynamically changes existing Chem ID to Chem ID - 3142. | No | - | |||
| RESET | 0x0041 | Performs a full device reset. | No | - | |||
| SOFT_RESET | 0x0042 | Gauge exits CONFIG UPDATE mode. | No | - | |||
|
Class |
Subclass | Type | Name | Subclass ID | Offset | Description | Min | Max | Setting | Default | Unit | Reason | ||||
| Configuration | Safety | I2 | Over Temp | 2 | 0 | An over-temperature condition is detected if Temperature() ≥ Over Temp (default = 55 °C) and indicated by setting the Flags() [OT] bit. The [OT] bit is cleared when Temperature() < Over Temp – Temp Hys(default = 50 °C). An under-temperature condition is detected if Temperature() ≤ Under Temp (default = 0 °C) and indicated by setting the Flags() [UT] bit. The [UT] bit is cleared when Temperature() > Under Temp + Temp Hys(default = 5 °C). |
-1200 | 1200 | 550 | 550 | 0.1° | |||||
| Configuration | Safety | I2 | Under Temp | 2 | 2 | -1200 | 1200 | 0 | 0 | 0.1° | ||||||
| Configuration | Safety | U1 | Temp Hys | 2 | 4 | 0 | 255 | 50 | 50 | 0.1° | ||||||
| Configuration | Charge Temination | I1 | TCA Set % | 36 | 3 | The Flags() [CHG] bit is set when SOC reaches TCA Set % and is cleared when it drops below TCA Clear %. The Flags() [CHG] bit is set when Primary Charge Termination conditions are met and TCA Set % is set to –1%. |
-1 | 100 | 99 | 99 | % | |||||
| Configuration | Charge Temination | I1 | TCA Clear % | 36 | 4 | -1 | 100 | 95 | 95 | % | ||||||
| Configuration | Charge Temination | I1 | FC Set % | 36 | 5 | The Flags() [FC] bit is set when SOC reaches FC Set % and is cleared when it drops below FC Clear %. The Flags() [FC] bit is set when Primary Charge Termination conditions are met and FC Set % is set to –1%. |
-1 | 100 | -1 | -1 | % | |||||
| Configuration | Charge Temination | I1 | FC Clear % | 36 | 6 | 0 | 100 | 98 | 98 | % | ||||||
| Configuration | Charge Temination | I2 | DODatEOC Delta T | 36 | 7 | This represents the temperature change threshold to update Qstart and RemainingCapacity() due to temperature changes. During relaxation and at the start of charging, the remaining capacity is calculated as RemainingCapacity() = FullChargeCapacity() – Qstart. As temperature decreases, Qstart can become much smaller than the old FullChargeCapacity() value, resulting in an overestimation of RemainingCapacity(). To improve accuracy, FullChargeCapacity() is updated when the temperature change since the last FullChargeCapacity() update is greater than DODatEOC Delta T × 0.1ºC. The default value is 50. |
0 | 1000 | 50 | 50 | 0.1° | |||||
| Configuration | Discharge | U1 | SOC1 Set Threshold | 49 | 0 | When StateOfCharge() falls to or below the first capacity threshold, as specified in SOC1 Set Threshold, the Flags() [SOC1] bit is set. This bit is cleared once StateOfCharge() rises to or above SOC1 Clear Threshold. |
0 | 100 | 10 | 10 | % | |||||
| Configuration | Discharge | U1 | SOC1 Clear Threshold | 49 | 1 | 0 | 100 | 15 | 15 | % | ||||||
| Configuration | Discharge | U1 | SOCF Set Threshold | 49 | 2 | When StateOfCharge() falls to or below the final capacity threshold, as specified in SOCF Set Threshold, the Flags() [SOCF] bit is set. This bit is cleared once StateOfCharge() rises to or above SOCF Clear Threshold. The [SOCF] bit serves as the final discharge warning. |
0 | 100 | 2 | 2 | % | |||||
| Configuration | Discharge | U1 | SOCF Clear Threshold | 49 | 3 | 0 | 100 | 5 | 5 | % | ||||||
| Configuration | Registers | H2 | OpConfig | 64 | 0 | For details, please refer to Table 2. OpConfig Register Bit Definitions | 0 | FFFF | 647A | 6578 | Flag | Temperature via external input | ||||
| Configuration | Registers | H1 | OpconfigB | 64 | 2 | For details, please refer to Table 3. OpConfigB Register Bit Definitions | 0 | FF | 0F | 0F | Flag | |||||
| Configuration | Registers | H1 | OpconfigC | 64 | 3 | For details, please refer to Table 4. OpConfigC Register Bit Definitions | 0 | FF | 9F | 9F | Flag | |||||
| Configuration | Registers | H1 | OpconfigD | 64 | 4 | For details, please refer to Table 5. OpConfigD Register Bit Definitions | 0 | FF | 23 | 23 | Flag | |||||
| Gas Gauging | IT Cfg | U2 | OCV Wait Time | 80 | 7 | - | 0 | 65535 | 60 | 60 | s | |||||
| Gas Gauging | IT Cfg | U2 | Ra Filter | 80 | 18 | Ra table updates are filtered. This is a weighting factor that takes a certain percentage of the previous Ra table value, and the remaining percentage comes from the newest calculated Ra value. This prevents resistances in the Ra table from changing quickly. Ra = (Ra_old × Ra Filter + Ra_new × (1000 – Ra Filter )) ÷ 1000 Ra Filter is normally set to 800 (80% previous Ra value plus 20% learned Ra value to form new Ra value). |
0 | 1000 | 800 | 800 | Num | |||||
| Gas Gauging | IT Cfg | I2 | Res V Drop | 80 | 20 | Res V Drop is used during battery discharge to qualify sufficient conditions for measuring and storing resistance values. It is useful in applications with low-rate discharge or frequent cold temperature usage that typically have trouble achieving consistent resistance updates. Even with low current, the voltage drop requirement can still be met if enough cell resistance is evident |
0 | 32767 | 32767 | 50 | mV | |||||
| Gas Gauging | IT Cfg | U2 | Samples to Wake | 80 | 22 | - | 0 | 65535 | 240 | 100 | s | |||||
| Gas Gauging | IT Cfg | U2 | Qmax Max Time | 80 | 24 | - | 0 | 65535 | 1800 | 18000 | s | |||||
| Gas Gauging | IT Cfg | U1 | DOD Vaild Time | 80 | 31 | - | 0 | 255 | 25 | 25 | s | |||||
| Gas Gauging | IT Cfg | U1 | Fast Qmax Start DOD % | 80 | 33 | Fast Qmax measurement starts when the following conditions are met, • DOD > Fast Qmax Start DOD% or Voltage < Terminate Voltage + Fast Qmax Start Volt Delta • Current < C/Fast Qmax Current Threshold |
0 | 100 | 92 | 92 | % | |||||
| Gas Gauging | IT Cfg | I2 | Fast Qmax Start Volt Delta | 80 | 35 | 0 | 4200 | 125 | 125 | mV | ||||||
| Gas Gauging | IT Cfg | U2 | Fast Qmax Current Threshold | 80 | 37 | 0 | 1000 | 4 | 4 | Hr rate | ||||||
| Gas Gauging | IT Cfg | U1 | Fast Qmax End DOS % | 80 | 34 | Fast Qmax measurement is calculated at the end of discharge when the following conditions are met: • Number of Fast Qmax measurements > Fast Qmax Min Points • DOD > Fast Qmax End DOD% |
0 | 100 | 96 | 96 | % | |||||
| Gas Gauging | IT Cfg | U1 | Fast Qmax Min Points | 80 | 39 | 0 | 255 | 3 | 3 | Num | ||||||
| Gas Gauging | IT Cfg | U1 | Max Qmax Change | 80 | 43 | - | 0 | 255 | 20 | 20 | % | |||||
| Gas Gauging | IT Cfg | U1 | Qmax Max Delta % | 80 | 44 | - | 0 | 255 | 10 | 10 | %DCap | |||||
| Gas Gauging | IT Cfg | U1 | Max % Default Qmax | 80 | 45 | Provides an upper limit to the value to which Qmax can be learned. The default value is sufficient for most applications. | 0 | 255 | 120 | 120 | %DCap | |||||
| Gas Gauging | IT Cfg | U1 | Qmax Filter | 80 | 46 | Qmax updates are filtered to prevent corrupt values. It is not recommended to change this value | 0 | 255 | 96 | 96 | Num | |||||
| Gas Gauging | IT Cfg | U1 | ResRelax Time | 80 | 48 | ResRelax Time, or resistance relaxation time, is used for transient modeling. It represents the time it takes for the internal resistance to be fully saturated. This way the gauge will not simulate immediate large IR drops when it calculates the instantaneous voltage from the battery under load. The default value is 500 seconds, which is sufficient for most applications. | 0 | 65535 | 500 | 500 | s | |||||
| Gas Gauging | IT Cfg | I2 | User Rate-mA | 80 | 50 | This is the discharge rate used for the Impedance Track simulation of a voltage profile to determine discharge capacity. It is only used when Load Mode = 0 (constant-current) and Load Select = 6 (userdefined rate). | -32768 | 0 | 0 | 0 | mA | |||||
| Gas Gauging | IT Cfg | I2 | User Rate-mW | 80 | 52 | This is the discharge rate used for the Impedance Track simulation of a voltage profile to determine discharge capacity. It is only used when Load Mode = 1 (constant-power) and Load Select = 6 (userdefined rate). | -32768 | 0 | 0 | 0 | mW | |||||
| Gas Gauging | IT Cfg | U1 | Max Sim Rate | 80 | 57 | Maximum IT simulation rate (inversed). 2 implies C/2. This is the maximum load used in IT simulations in terms of C-rate. This register defaults to 1. | 0 | 255 | 1 | 1 | Hr rate | |||||
| Gas Gauging | IT Cfg | U1 | Min Sim Rate | 80 | 58 | Minimum IT simulation rate (inversed). 20 implies C/20. This is the minimum load used in IT simulations in terms of C-rate. This register defaults to 20. | 0 | 255 | 20 | 20 | Hr rate | |||||
| Gas Gauging | IT Cfg | U2 | Ra Max Delta | 80 | 59 | During the update of Ra values, a filtering process is performed to eliminate unexpected fluctuations in the updated Ra values. Ra Max Delta limits the change in Ra values to an absolute magnitude per Ra update. | 0 | 32767 | 8 | 11 | 4 mΩ | |||||
| Gas Gauging | IT Cfg | I2 | Min Delta Voltage | 80 | 68 | These parameters are the lower and upper bounds on the value that Delta Voltage is allowed to learn, and are saved during discharge cycles. | 0 | 32767 | 0 | 0 | mV | |||||
| Gas Gauging | IT Cfg | I2 | Max Delta Voltage | 80 | 70 | These parameters are the lower and upper bounds on the value that Delta Voltage is allowed to learn, and are saved during discharge cycles. | 0 | 32767 | 200 | 200 | mV | |||||
| Gas Gauging | IT Cfg | I2 | DeltaV Max dV | 80 | 72 | This parameter limits the amount of change allowed for each update of Delta Voltage. Delta Voltage will only be updated in Data Memory after a discharge of at least 500 seconds has occurred and stopped | 0 | 32767 | 100 | 100 | mV | |||||
| Gas Gauging | IT Cfg | U1 | TermV Valid t | 80 | 74 | The voltage must dip below Terminate Voltage for at least this many seconds before RemainingCapacity() and StateOfCharge() will be forced to zero. | 0 | 255 | 2 | 2 | s | |||||
| Gas Gauging | IT Cfg | I2 | Trace Resistance | 80 | 75 | Trace Resistance is the nominal resistance between the cell and the coulomb counter measurement point in a given application. Flex cabling and long copper traces on the PCB itself can contribute to this resistance and inject error into the SOC prediction. The fuel gauge offsets cell resistance with this value to improve RemainingCapacity() estimation. | 0 | 32767 | 0 | 0 | mΩ | |||||
| Gas Gauging | IT Cfg | I2 | Downstream Resistance | 80 | 77 | Downstream Resistance is the nominal resistance between the coulomb counter measurement point and the system voltage node in a given application. Long copper traces on the PCB itself can contribute to this resistance and inject error into the SOC prediction. The fuel gauge offsets cell resistance with this value to improve RemainingCapacity() estimation. | 0 | 32767 | 0 | 0 | mΩ | |||||
| Gas Gauging | IT Cfg | U2 | Predict Ambient Time | 80 | 79 | Predict Ambient Time determines the wait time before the algorithm starts to predict the ambient temperature during charge/discharge |
0 | 65535 | 2000 | 2000 | s | |||||
| Gas Gauging | IT Cfg | U1 | Design Energy Scale | 80 | 81 | Design Energy Scale selects the scale and units of a set of data flash parameters. The value of Design Energy Scale can be either 1 or 10. For battery capacities larger than 6 Ah, Design Energy Scale = 10 is recommended. |
1 | 10 | 1 | 1 | Num | |||||
| Gas Gauging | IT Cfg | U1 | Fast Scale Load Select | 80 | 82 | Fast Scale Load Select is used to configure an independent load profile for use with Fast Resistance Scaling Mode. It can be set to any value supported by the standard Load Select, and is useful for systems that exhibit significant load changes near the end of discharge, allowing the gauge to better predict remaining SOC in such cases. The default value for Fast Scale Load Select is set to 3 (14 s average of the current/power). This makes it more responsive to changes in load near empty and helps it converge better to 0%. This helps in cases where the discharge was at a relatively light load during most of the discharge, but the load increases dramatically near the end |
0 | 6 | 3 | 3 | Num | |||||
| Gas Gauging | IT Cfg | U1 | Chg DOD Correction Start SOC | 80 | 83 | DOD correction during charge will start when SOC is above Chg DOD Correction Start SOC | 0 | 101 | 90 | 90 | Num | |||||
| Gas Gauging | IT Cfg | U1 | Chg DOD Correction Taper Ratio | 80 | 84 | DOD correction during charge will be applied when current is below Chg DOD Correction Taper Ratio. | 0 | 5 | 2 | 2 | Num | |||||
| Gas Gauging | Current Thresholds | I2 | Dsg Current Threshold | 81 | 0 | The gauging algorithm transitions between three states: DISCHARGE, CHARGE, and RELAXATION modes of operation. During charge mode, the [DSG] bit of the Flags() register is cleared, and during discharge and RELAXATION mode it is set. Entry and exit for each mode is controlled by six parameters in the Current Thresholds Subclass. The discharge current threshold can be calculated as Design Capacity/(Dsg Current Threshold × 0.1). The default is effectively C/16.7. The charge current threshold can be calculated as Design Capacity/(Chg Current Threshold × 0.1). The default is effectively C/10. The quit current threshold can be calculated as Design Capacity/(Quit Current × 0.1). The default is effectively C/25. Charge mode is exited and RELAXATION mode is entered when EffectiveCurrent() goes below the quit current threshold for the number of seconds specified in Charge Relax Time (default 60 s). Discharge mode is entered when EffectiveCurrent() goes below the discharge current threshold for Quit Relax Time (default 1 s). Discharge mode is exited and RELAXATION mode is entered when EffectiveCurrent() goes above negative quit current threshold for Dsg Relax Time (default 60 s). Charge mode is entered when EffectiveCurrent() goes above the charge current threshold for Charge Relax Time (default 60 s). |
0 | 2000 | 813 | 167 | .1 Hr rate | Dsg Current=15mA，Design Cap=1220.Design/Current*10=813 | ||||
| Gas Gauging | Current Thresholds | I2 | Chg Surrent Threshold | 81 | 2 | 0 | 2000 | 135 | 100 | .1 Hr rate | Chg Current=90mA，Design Cap=1220.Design/Current*10=135 | |||||
| Gas Gauging | Current Thresholds | I2 | Quit Current | 81 | 4 | 0 | 2000 | 1220 | 250 | .1 Hr rate | quit Current=10mA,Design Cap=1220.Design/Current*10=1220 | |||||
| Gas Gauging | Current Thresholds | U2 | Dsg Relax Time | 81 | 6 | 0 | 65535 | 60 | 60 | s | ||||||
| Gas Gauging | Current Thresholds | U1 | Chg Relax Time | 81 | 8 | 0 | 255 | 60 | 60 | s | ||||||
| Gas Gauging | Current Thresholds | U1 | Quit Relax Time | 81 | 9 | 0 | 255 | 1 | 1 | s | ||||||
| Gas Gauging | Current Thresholds | U2 | Max IR Correct | 81 | 12 | Max IR Correct is a maximum IR correction applied to OCV lookup under load. It only applies to OCV lookup after a wakeup with a detected charge current when the gauge must establish a capacity baseline, but the current is already flowing. If current is flowing during a voltage measurement that is used for finding an initial DOD, IR correction eliminates the effects of the IR drop across the cell impedance and obtains true OCV. Max IR Correct is the maximum value of IR correction used. It helps to avoid artifacts due to very high resistance at low DOD values during charge. This is specific to handheld applications. The default is 400 mV. |
0 | 1000 | 400 | 400 | mV | |||||
| Gas Gauging | State | I2 | Qmax Cell 0 | 82 | 0 | Qmax contains the maximum chemical capacity of the cell, and is determined by comparing states of charge before and after applying the load with the amount of charge passed. It corresponds to capacity at low rate (~C/20) of discharge. For high accuracy, this value is periodically updated by the gauge during operation. The Impedance Track algorithm updates this value and maintains it. To translate the Qmax register to mAh, use this formula: Qmax (mAh) = Qmax Cell 0 × Design Capacity/2 14 |
0 | 32767 | 16384 | 16384 | Num | |||||
| Gas Gauging | State | H1 | Update Status | 82 | 2 | Bit 0 (0x01) and bit 1 (0x02) of the Update Status register indicate whether or not the fuel gauge will apply limits to changes in Qmax updates and Ra table updates. When bit 0 (0x01) and bit 1 (0x02) of the Update Status register are cleared, the gauge will apply limits to changes in Qmax and the Ra table. Bit 0 (0x01) and bit 1 (0x02) are cleared by default and should remain cleared during operation. Only if a learning cycle is to be completed during initial configuration of the gauge’s golden file should bit 0 (0x01) and bit 1 (0x02) be set. Bit 7 (0x80) of the Update Status register indicates the default SEALED state of the fuel gauge. This bit is checked after POR and after exit of CONFIG UPDATE mode to see if the gauge should be placed into the SEALED or UNSEALED state. If bit 7 (0x80) is set then the gauge will be placed into the SEALED state. |
0 | FF | 0 | 0 | Hex | |||||
| Gas Gauging | State | I2 | Reserve Cap-mAh | 82 | 3 | Reserve Cap-mAh determines how much actual remaining capacity exists after reaching zero RemainingCapacity() before Terminate Voltage is reached. This register is only used if Load Mode = 0 (constant-current). A no-load rate of compensation is applied to this reserve capacity. This is a specialized function to allow time for a controlled shutdown after zero RemainingCapacity() is reached. |
0 | 9000 | 0 | 0 | mAh | |||||
| Gas Gauging | State | H1 | Load Select/Mode | 82 | 5 | Load Mode configures the fuel gauge to use either a constant-current or constant-power model for the Impedance Track algorithm. When Load Mode is 0, the Constant Current Model is used. This provides a better estimation of remaining run time, especially close to the end of discharge where current increases to compensate for decreasing battery voltage. When Load Mode is 1 (default), the Constant Power Model is used. The CONTROL_STATUS [LDMD] bit reflects the status of Load Mode. For details,pls refer to table 6 Load Select/Mode Parameter encoding |
0 | FF | 81 | 81 | Hex | |||||
| Gas Gauging | State | I2 | Design Capacity | 82 | 6 | Design Capacity is used for compensated battery capacity remaining and capacity when fully charged calculations are done by the gauge. It is also used for constant-current model for Impedance Track algorithm when Load Mode is 0 (constant-current) and Load Select is 4 (Design Capacity/5 for constant discharge). The CONTROL_STATUS [LDMD] bit indicates the Impedance Track algorithm is assuming constant-current model when cleared. Design Energy is used for compensated battery capacity remaining and capacity when fully charged calculations are done by the gauge. It is also used for constant-power model for Impedance Track algorithm when Load Mode is 1 (constant-power) and Load Select is 4 (Design Energy/5 for constant discharge). The CONTROL_STATUS [LDMD] bit indicates the Impedance Track algorithm is using constant-power model when set. These values should be set based on the battery specification. See the data sheet from the battery manufacturer. |
0 | 8000 | 1220 | 1340 | mAh | Nominal battery capacity | ||||
| Gas Gauging | State | I2 | Design Energy | 82 | 8 | 0 | 32767 | 4697 | 4960 | mWh | Nominal battery capacity*Nominal battery volt | |||||
| Gas Gauging | State | I2 | Terminate Voltage | 82 | 10 | Terminate Voltage is used in the Impedance Track algorithm to compute RemainingCapacity(). This is the absolute minimum voltage for end of discharge, where the remaining chemical capacity is assumed to be zero |
2500 | 3700 | 3400 | 3200 | mV | 3.4 V corresponds to SOC 0% | ||||
| Gas Gauging | State | I2 | T Rise | 82 | 16 | The T Rise Factor reflects the level of system heating due to self-heating of the cell during discharge. This number can be measured empirically. |
0 | 32767 | 20 | 20 | Num | |||||
| Gas Gauging | State | I2 | T Time Constant | 82 | 18 | T Time Constant reflects the time constant of system heating due to self-heating of the cell during discharge. This number can be measured empirically. |
0 | 32767 | 1000 | 1000 | s | |||||
| Gas Gauging | State | U1 | SOCI Delta | 82 | 20 | The SOCI Delta parameter is active when the SOC_INT function is activated when OpConfig [BATLOWEN] is cleared. |
0 | 100 | 1 | 1 | % | |||||
| Gas Gauging | State | I2 | Taper Rate | 82 | 21 | Taper Rate is used in the Primary Charge Termination Algorithm. AverageCurrent() is integrated over each of the two 40-second periods separately and averaged separately to determine two averages (IRateAvg1, IRateAvg2). |
0 | 2000 | 203 | 100 | .1 Hr rate | Taper Current=60mA，Design Cap=1220.Design/Current*10=203 | ||||
| Gas Gauging | State | I2 | Sleep Current | 82 | 23 | When AverageCurrent() is less than Sleep Current or greater than (–)Sleep Current, the gauge enters SLEEP mode if the feature is enabled by setting the OpConfig [SLEEP] bit. |
0 | 1000 | 10 | 10 | mA | |||||
| Gas Gauging | State | I2 | Avg I Last Run | 82 | 25 | The gauge logs the current averaged from the beginning to the end of each discharge period. It stores this average current from the previous discharge in this register. This register can be initialized to a typical system current load. It is updated by the gauge after a discharge lasts for at least 500 seconds and stops. The default represents a C/5 load. It should always be a negative value. This register should never be modified; it is only updated by the fuel gauge when the gauge exits DISCHARGE mode. |
-32768 | -1 | -50 | -50 | .1 Hr rate | |||||
| Gas Gauging | State | I2 | Avg P Last Run | 82 | 27 | The gauge logs the power averaged from the beginning to the end of each discharge period. It stores this average power from the previous discharge in this register. To get a correct average power reading the gauge continuously multiplies current times voltage to get power. It then logs this data to derive the average power. This register can be initialized to a typical system power load. It is updated by the gauge after a discharge lasts for at least 500 seconds and stops. The default represents a C/5 load. It should always be a negative value. This register should never be modified; it is only updated by the fuel gauge when the gauge exits DISCHARGE mode. |
-32768 | -1 | -50 | -50 | .1 Hr rate | |||||
| Gas Gauging | State | I2 | Delta Voltage | 82 | 29 | The gauge stores the maximum difference of Voltage during short load spikes and normal load, so the Impedance Track algorithm can calculate RemainingCapacity() for pulsed loads. It is added to Terminate Voltage for Impedance Track simulations. This value will never update to a value less than Min Delta Voltage or greater than Max Delta Voltage. If Min Delta Voltage is set to a value above zero, then Delta Voltage should also be initialized to at least the same value as Min Delta Voltage. |
0 | 1000 | 1 | 1 | mV | |||||
| Ra Tables | Ra0 RAM | I2 | Ra 0 | 89 | 0 | The Ra Table class has 15 values. The R_a RAM is initialized from ROM upon gauge reset. Each of these values represents a resistance value normalized at 25°C for the associated Qmax Cell 0-based SOC grid point as found by the following rules: For Cell0 Ra M where: • If 0 ≤ M ≤ 7: The data is the resistance normalized at 25° and scaled by Design Capacity for: SOC = 100% – (M × 11.1%) • If 8 ≤ M ≤ 14: The data is the resistance normalized at 25° and scaled by Design Capacity for: SOC = 100% – [77.7% + (M – 7) × 3.3%] This gives a profile of resistance throughout the entire SOC profile of the battery cells concentrating more on the values closer to 0%. |
0 | 32767 | 53 | 102 | Num | |||||
| Ra Tables | Ra0 RAM | I2 | Ra 1 | 89 | 2 | 0 | 32767 | 53 | 102 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 2 | 89 | 4 | 0 | 32767 | 58 | 99 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 3 | 89 | 6 | 0 | 32767 | 70 | 107 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 4 | 89 | 8 | 0 | 32767 | 57 | 72 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 5 | 89 | 10 | 0 | 32767 | 52 | 59 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 6 | 89 | 12 | 0 | 32767 | 62 | 62 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 7 | 89 | 14 | 0 | 32767 | 53 | 63 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 8 | 89 | 16 | 0 | 32767 | 54 | 53 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 9 | 89 | 18 | 0 | 32767 | 55 | 47 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 10 | 89 | 20 | 0 | 32767 | 57 | 60 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 11 | 89 | 22 | 0 | 32767 | 59 | 70 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 12 | 89 | 24 | 0 | 32767 | 93 | 140 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 13 | 89 | 26 | 0 | 32767 | 144 | 369 | Num | ||||||
| Ra Tables | Ra0 RAM | I2 | Ra 14 | 89 | 28 | 0 | 32767 | 159 | 588 | Num | ||||||
| Chemistry Info | Chem Data | I2 | Q Invalid MaxV | 109 | 2 | Q Invalid Max V and Q Invalid Min V specify the Qmax disqualification voltage region generally known as the flat region of the OCV versus DOD curve. OCV measurement for Qmax calculation is disallowed in this region. |
0 | 32767 | 3811 | 3803 | mV | |||||
| Chemistry Info | Chem Data | I2 | Q Invalid MinV | 109 | 4 | 0 | 32767 | 3750 | 3752 | mV | ||||||
| Chemistry Info | Chem Data | I2 | V at Chg Term | 109 | 6 | V at Chg Term should be initialized to the typical charging voltage of the system. Typically, if using the default battery profile (CHEM_ID = 0x1202), the charging voltage will be 4200 mV and the default value of V at Chg Term can be used. If using ALT_CHEM1 (CHEM_ID = 0x1210) then V at Chg Term could be initialized to 4300 mV. If using ALT_CHEM2 (CHEM_ID = 0x354), V at Chg Term could be initialized to 4350 mV. |
0 | 5000 | 4340 | 4190 | mV | |||||
| Chemistry Info | Chem Data | I2 | Taper Voltage | 109 | 8 | The Taper Voltage threshold defines the minimum voltage necessary as a qualifier for detection of charge termination. |
0 | 5000 | 4250 | 4100 | mV | |||||
| Calibration | Data | I1 | Board offset | 104 | 0 | Board Offset is the second offset register. It calibrates all that the CC Offset does not calibrate out. This includes board layout, sense resistor, and copper trace, and other potential offsets that are external to the fuel gauge. The simplified ground circuit design in the fuel gauge requires a separate board offset for each tested device. |
-128 | 127 | 0 | 0 | Counts | |||||
| Calibration | Data | I1 | Int Temp Offset | 104 | 1 | The gauge has a temperature sensor built into the fuel gauge. The Int Temp Offset are used for calibrating offset errors in the measurement of the reported Temperature() if a known temperature offset exists between the fuel gauge and the battery cell. The gain of the internal temperature sensor is accurate enough that a calibration for gain is not required. |
-128 | 127 | 0 | 0 | 0.1° | |||||
| Calibration | Data | I1 | Ext Temp Offset | 104 | 2 | -128 | 127 | 0 | 0 | 0.1° | ||||||
| Calibration | Data | I1 | Pack V Offset | 104 | 3 | This is the offset to calibrate the gauge analog-to-digital converter for cell voltage measurement. Pack V Offset should not require modification by the user. It is modified by the Voltage Calibration function from CALIBRATION mode. |
-128 | 127 | 0 | 0 | mV | |||||
| Calibration | Data | I2 | Ext a Coef 1 | 104 | 4 | Ext a Coef and Ext b Coef are the thermistor temperature linearization polynomial coefficients. The default values have been computed with a Semitec 103AT thermistor. If a different type of thermistor is used, then the coefficients will need to be changed. Contact TI to generate coefficients for a different thermistor. |
-32768 | 32767 | -11130 | -11130 | Num | |||||
| Calibration | Data | I2 | Ext a Coef 2 | 104 | 6 | -32768 | 32767 | 19142 | 19142 | Num | ||||||
| Calibration | Data | I2 | Ext a Coef 3 | 104 | 8 | -32768 | 32767 | -19262 | -19262 | Num | ||||||
| Calibration | Data | I2 | Ext a Coef 4 | 104 | 10 | -32768 | 32767 | 28203 | 28203 | Num | ||||||
| Calibration | Data | I2 | Ext a Coef 5 | 104 | 12 | -32768 | 32767 | 892 | 892 | Num | ||||||
| Calibration | Data | I2 | Ext b Coef 1 | 104 | 14 | -32768 | 32767 | 328 | 328 | Num | ||||||
| Calibration | Data | I2 | Ext b Coef 2 | 104 | 16 | -32768 | 32767 | -605 | -605 | Num | ||||||
| Calibration | Data | I2 | Ext b Coef 3 | 104 | 18 | -32768 | 32767 | -2443 | -2443 | Num | ||||||
| Calibration | Data | I2 | Ext b Coef 4 | 104 | 20 | -32768 | 32767 | 4696 | 4696 | Num | ||||||
| Calibration | CC Cal | I2 | CC Cal Temp | 105 | 2 | CC Cal Temp is the temperature at the time of current calibration. It is also used for RDL temperature compensation. |
0 | 32767 | 303 | 2982 | °K | |||||
| Calibration | CC Cal | I2 | CC Offset | 105 | 0 | CC Offset, CC Gain, and CC Delta are internal calibration parameters that require no customer changes and are provided for debug purposes only. Two offsets are used for calibrating the offset of the internal coulomb counter, board layout, sense resistor, copper traces, and other offsets from the coulomb counter readings. CC Offset is the calibration value that primarily corrects for the offset error of the fuel gauge coulomb counter circuitry. The other offset calibration is Board Offset and is described separately. CC Offset is a correction for small noise or errors; therefore, to maximize accuracy, it takes about 16 seconds to calibrate the offset. Because it is impractical to do 16-second offset during IC production, the fuel gauge will periodically perform a CC Offset automatic calibration in SLEEP mode. During the automatic calibration, the fuel gauge will set the CONTROL_STATUS [CCA] bit. CC Gain is the gain factor for calibrating sense resistor, trace, and internal coulomb counter errors. It is used in the algorithm that reports AverageCurrent(). CC Delta is a fixed constant based on CC Gain used to cancel out the time base error. |
-32768 | 32767 | -16 | 0 | Counts | |||||
| Calibration | CC Cal | F4 | CC Gain | 105 | 4 | 1.00E-01 | 4.00E+01 | 0.238 | 0.238 | Num | ||||||
| Calibration | CC Cal | F4 | CC Delta | 105 | 8 | 3.00E+04 | 3.00E+06 | 283945.0625 | 799341.14 | Num | ||||||
| Calibration | Current | U1 | Deadband | 107 | 1 | The Deadband creates a filter window to the reported AverageCurrent() register where the current is reported as 0. Any negative current above this value or any positive current below this value is displayed as 0. |
0 | 255 | 5 | 5 | mA | |||||
| Security | Codes | H4 | Sealed to Unsealed | 112 | 0 | The fuel gauge implements a key-access scheme to transition from SEALED to UNSEALED mode. Once SEALED via the associated subcommand, a unique set of two keys must be sent to the fuel gauge via the Control() command to return to UNSEALED mode. The keys must be sent consecutively, with no other data being written to the Control() register in between. When in the SEALED mode, the CONTROL_STATUS [SS] bit is set; but after the Sealed to Unsealed keys are correctly received by the fuel gauge, the [SS] bit is cleared. The Sealed to Unsealed key has two identical words stored in ROM with a value of 0x8000 8000. Then, Control() should supply 0x8000 and 0x8000 (again) to unseal the part. After the fuel gauge exits CONFIG UPDATE mode, the fuel gauge will check bit 7 (0x80) in the Update Status register. If bit 7 (0x80) is set, the fuel gauge will be placed into the SEALED state. If the fuel gauge is placed into SEALED mode on the exit of CONFIG UPDATE mode, the fuel gauge will not be allowed to go to the UNSEALED state for 4 seconds upon exiting CONFIG UPDATE mode. Any subcommand greater than 0x001A will restart the 4-second timer. |
10001 | FFFFFFFF | 80008000 | 80008000 | Hex | |||||
| Bit Number | Bit Name | Description | Defaule | Setting | Reason | |||||
| High Byte | Bit 7 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | |||||
| Bit 6 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | ||||||
| Bit 5 | BIE | Battery Insertion Enable. If set, the battery insertion is detected via the BIN pin input. If cleared, the detection relies on the host to issue the BAT_INSERT subcommand to indicate battery presence in the system. | 1 | 1 | ||||||
| Bit 4 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Bit 3 | GPIOPOL | GPOUT pin is active-high if set or active-low if cleared. | 0 | 0 | ||||||
| Bit 2 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | ||||||
| Bit 1 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Bit 0 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Low Byte | Bit 7 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | |||||
| Bit 6 | ResFactStep | Enables Ra step up/down to Max/Min Res factor before disabling Ra updates | 1 | 1 | ||||||
| Bit 5 | SLEEP | The fuel gauge can enter sleep, if operating conditions allow. True when set. | 1 | 1 | 当电流＜10mA时，会进入sleep模式，节省功耗 When the current is less than 10mA, it will enter the sleep mode to save power consumption |
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| Bit 4 | RMFCC | RM is updated with the value from FCC on valid charge termination. True when set. | 1 | 1 | ||||||
| Bit 3 | FastConv En | Enables Fast SOC Convergence. True when set. | 1 | 1 | ||||||
| Bit 2 | BATLOWEN | If set, the BAT_LOW function for GPOUT pin is selected. If cleared, the SOC_INT function is selected for GPOUT. | 0 | 0 | GPOUT pin for SOC_ INT function, so it is set to 0 | |||||
| Bit 1 | Temp source[1] | Selects the temperature source. Enables the host to write Temperature() if set. If cleared, the internal temperature sensor is used for Temperature(). 00 = Internal Temperature Sensor is used as Temperature Source. 01 = External Thermistor is used as Temperature Source. 10 = Host written Temperature is used as Temperature Source. |
0 | 1 | 通过外部输入电池温度到Gauge Input battery temperature to Gauge through external |
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| Bit 0 | Temp source[0] | 0 | 0 | |||||||
| Bit Number | Bit Name | Description | Defaule | Setting | Reason | |||||
| Byte | Bit 7 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | |||||
| Bit 6 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Bit 5 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Bit 4 | RSVD0 | Reserved. Default is 0. (Set to 0 for proper operation.) | 0 | 0 | ||||||
| Bit 3 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | ||||||
| Bit 2 | SMOOTHEN | Enables the SOC smoothing feature. True when set. | 1 | 1 | ||||||
| Bit 1 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | ||||||
| Bit 0 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | ||||||
| Bit Number | Bit Name | Description | Defaule | Setting | Reason | |||||
| Byte | Bit 7 | RSVD1 | Reserved. Default is 1. (Set to 1 for proper operation.) | 1 | 1 | |||||
| Bit 6 | Non Removable | If Set, Fuel gauge assumes battery is present and ignores BIE functionality or the Battery insert commands. If cleared, fuel gauge relies on BIE functionality or battery insertion commands to indicate battery presence | 0 | 0 | ||||||
| Bit 5 | RSVD0 | Reserved. Default is 0. | 0 | 0 | ||||||
| Bit 4 | SOCHold99 | The fuel gauge will prevent StateofCharge() from reporting 100% until Flags()[FC] is set. Set to 1 to enable. | 1 | 1 | ||||||
| Bit 3 | SOCHold1 | The fuel gauge will prevent StateofCharge() from reporting 0% until Voltage() is less than or equal to Terminate Voltage. Set to 1 to enable. |
1 | 1 | ||||||
| Bit 2 | SOCHoldOvrChg | The fuel gauge will hold StateofCharge() at 100% while in an overcharge condition and not decrement until the charge surplus is equalized. Set to 1 to enable. |
1 | 1 | ||||||
| Bit 1 | SOCHoldOvrDsg | The fuel gauge will hold StateofCharge() at 0% while in an overdischarge condition and not decrement until the charge deficit is equalized. Set to 1 to enable. |
1 | 1 | ||||||
| Bit 0 | PredictAmbient | 0 = Disables ambient temperature adaptability for gauging 1 = Enables ambient temperature adaptability for gauging |
1 | 1 | ||||||
| Bit Number | Bit Name | Description | Defaule | Setting | Reason | |||||
| Byte | Bit 7 | Filter Always | If set, Qmax/Ra filters always applied. If cleared, the first simulation will be unfiltered. | 0 | 0 | |||||
| Bit 6 | NoDeltaVAvg | If set, the last instantaneous change in Voltage() from steady state determines end of discharge voltage. If cleared, average variance from steady state voltage used to determine end of discharge voltage. |
0 | 0 | ||||||
| Bit 5 | PostponeLgDrops0 | If set, when a simulation results in RemCap = 0 before Ra scaling begins, then the reporting of RemCap = 0 is delayed till fast scaling starts. If cleared, if simulation results in RemCap = 0, then RemCap is reported as 0 instantly. | 1 | 1 | ||||||
| Bit 4 | ChemID[1] | 00 = Chem ID 3230 is used. 01 = Chem ID 1202 is used. 10 = Chem ID 3142 is used. 11 = RSVD |
0 | 0 | ||||||
| Bit 3 | ChemID[0] | 0 | 0 | |||||||
| Bit 2 | DODCorChgAlways | If set, enable present DoD recalculation during every charge cycle. | 0 | 0 | ||||||
| Bit 1 | DODCorChg | Enable present DoD recalculation during charging only. True when set. Default setting is recommended. | 1 | 1 | ||||||
| Bit 0 | DODCorDSG | Enable present DoD recalculation during discharging only. True when set. Default setting is recommended. |
1 | 1 | ||||||
| Bit Number | Bit Name | Description | Defaule | Setting | Reason | |||||
| Byte | Bit 7 | Load Mode | Bit 7 contains the value for Load Mode.Refer to Table 6.1 and Table 6.2 for operational details. | 1 | 1 | |||||
| Bit 6 | RSVD | Reserved. Set to 0 for proper operation. | 0 | 0 | ||||||
| Bit 5 | RSVD | Reserved. Set to 0 for proper operation. | 0 | 0 | ||||||
| Bit 4 | RSVD | Reserved. Set to 0 for proper operation. | 0 | 0 | ||||||
| Bit 3 | RSVD | Reserved. Set to 0 for proper operation. | 0 | 0 | ||||||
| Bit 2 | Load Select[2:0] | Bits 2:0 contain the value for Load Select.Refer to Table 6.1 and Table 6.2 for operational details. | 0 | 0 | ||||||
| Bit 1 | 0 | 0 | ||||||||
| Bit 0 | 1 | 1 | ||||||||
