Texas Instruments bq34210-Q1 Technical Reference Manual
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Texas Instruments bq34210-Q1 Technical Reference Manual

Texas Instruments bq34210-Q1 Technical Reference Manual

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bq34210-Q1
Technical Reference Manual
Literature Number: SLUUBE8
September 2018

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Summary of Contents for Texas Instruments bq34210-Q1

  • Page 1 Technical Reference Manual Literature Number: SLUUBE8 September 2018...

  • Page 2: Table Of Contents

    2.6.2 SLEEP Mode ....................2.6.3 SHUTDOWN Mode ....................CONFIG UPDATE Mode ..................Application-Specific Information ................2.8.1 Battery Profile Storage and Selection ..................2.8.2 First OCV Measurement Contents SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 3 2.9.48 Sleep Current ....................2.9.49 Bus Low Time ..............2.9.50 Offset Calibration Inhibit Temperature Low ..............2.9.51 Offset Calibration Inhibit Temperature High ....................2.9.52 Sleep Voltage Time SLUUBE8 – September 2018 Contents Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 4 ....................4.1.30 EXIT_ CAL: 0x0080 ................... 4.1.31 ENTER_CAL: 0x0081 ................4.1.32 ENTER_CFG_UPDATE: 0x0090 ............... 4.1.33 EXIT_CFG_UPDATE_REINIT: 0x0091 .................. 4.1.34 EXIT_CFG_UPDATE: 0x0092 ................... Temperature(): 0x06 and 0x07 Contents SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 5 Device Access Modes ................Sealing and Unsealing Data Memory Access ....................... Data Memory Summary ......................Application Example ................Data Memory Parameter Update Example ......................GAUGEPARCAL .......................... Revision History SLUUBE8 – September 2018 Contents Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 6: Preface

    This manual discusses the modules and peripherals of the automotive-qualified AEC-Q100, Grade 3 bq34210-Q1 fuel gauge, and how each is used to build a complete battery pack fuel gauge solution. For further information, refer to the bq34210-Q1 Automotive 1-Series Cell System-Side CEDV Fuel Gauge for Rarely Discharged Batteries Data Sheet (SLUSCG1).

  • Page 7: General Description

    SLUUBE8 – September 2018 General Description The bq34210-Q1 fuel gauge incorporates gas gauging and an End-of-Service (EOS) Determination function to use with a 1-series Li-Ion or Lithium Iron Phosphate (LiFePO4) rechargeable cell or a Nickel metal hydride (NiMH) based pack with a configuration of 3-series cells.

  • Page 8: Cedv Gas Gauging Operational Overview

    The main charge counter, RemainingCapacity() (RC) register, represents the available capacity or energy in the battery at any given time. The bq34210-Q1 device adjusts RC for charge, self-discharge, and other compensation factors. The information in the RC register is accessible through the I C interface.

  • Page 9: Capacity Learning (Fcc Update)

    FCC cannot be reduced by more than 256 mAh or increased by more than 512 mAh during any single update cycle. If [FCC_LIMIT] is set in CEDV Gauging Configuration, then FCC cannot learn above the Design Capacity mAh. The bq34210-Q1 device saves the new FCC value to the data memory within 4 s of being updated.

  • Page 10: Edv Discharge Rate And Temperature Compensation

    The bq34210-Q1 device performs EDV-based RC adjustments with current ≥ C/32. No EDVs are set if current < C/32. The bq34210-Q1 device adjusts RC as it detects each threshold. If the voltage threshold is reached before the corresponding capacity on discharge, the bq34210-Q1 device reduces RC to the...

  • Page 11: Edv Age Factor

    Self-Discharge Rate = %PERDAY/0.0025 1.1.8 Battery Electronic Load Compensation The bq34210-Q1 device can be configured to compensate for a constant load (as from battery electronics) present in the battery pack at all times. The bq34210-Q1 device applies the compensation continuously when the charge or discharge is below the digital filter.

  • Page 12: Initial Battery Capacity At Device Reset

    1.1.9 Initial Battery Capacity at Device Reset The bq34210-Q1 device estimates the initial capacity of a battery pack at device reset, which is the case when battery cells are first attached to the application circuit. The initial FullChargeCapacity() (FCC) is a direct copy of the ROM CEDV profile parameter Full Charge Capacity.

  • Page 13: Cedv Smoothing

    Smoothing to EDV0 if calculated EDV2/EDV1 is less than EDV0. The bq34210-Q1 device can also add smoothing during charging. In situations when the FCC is not updated during a discharge cycle or on a subsequent charge cycle, if the valid charge termination is reached, RSOC is synced to 100% regardless of the true RSOC.

  • Page 14: Accumulated Charge Measurement

    CC Deadband. In periods when the bq34210-Q1 device is in SLEEP mode, the Accumulated Charge integration includes an estimate of the charge integrated based on analysis of the periodic measured current.

  • Page 15: End-Of-Service Determination

    Learning cycles are coordinated by the bq34210-Q1 device with the host, which enables and disables the learning load. LEN or LLEN is used to denote the Learning Load Enable function. The EOS Determination function is enabled when [EOS_EN] in ManufacturingStatus() = 1.

  • Page 16: Alert Config Registers

    Table 1-4. Alert_0 Config Register Bit Definitions Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SLEEP CHGINH FCSETV Default 0x00 General Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 17 1 = Enabled OTC = Enables BatteryStatus()[OTC] 0 = Disabled (default) 1 = Enabled OTD = Enables BatteryStatus()[OTD] 0 = Disabled (default) 1 = Enabled SLUUBE8 – September 2018 General Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 18 1 = Enabled LDSG = Enables EOSLearnStatus()[LDSG] 0 = Disabled (default) 1 = Enabled 1.3.1.4 Alert_3 Config This register matches the EOS Learn Status register high byte. General Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 19 1 = Enabled SRCL = Enables EOSStatus()[SRCL] 0 = Disabled (default) 1 = Enabled RSVD = Reserved LTI = Enables EOSStatus()[LTI] 0 = Disabled (default) SLUUBE8 – September 2018 General Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 20 DRDALERT = Enables EOSLearnStatus()[DRDALERT] 0 = Disabled (default) 1 = Enabled 1.3.1.7 Alert_6 Config This register matches two bits from the Operation Status low byte. General Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 21: Smoothing Config Register

    This bit is used to put the device into a test mode for reduced timing testing of the EOS Determination function. When this bit is set = 1, the following values are set: SLUUBE8 – September 2018 General Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 22 Learn Charge Pre-Relax Discharge Post-Relax Phase Phase Phase Phase Learning Voltage Voltage Phase Restore Restore? Complete Phase Figure 1-4. State Diagram for LSM = 0 General Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 23 It should also be noted that if Alert-Warn Learn Time is set to be lower than Minimum Learn Time, then Minimum Learn Time will be used to determine the time to the next learning phase attempt. SLUUBE8 – September 2018 General Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 24 1.3.3.4 Learn Discharge Phase After achieving relaxation, the bq34210-Q1 device next enters the Learn Discharge Phase, whereby the device enables the Learn Discharge Current (depending on the [LENCTL] setting), sets the [LDSG] flag, and begins the timer.
  • Page 25 ALERT interrupt to see the [LCTLEDGE] signal and enable the Learn Discharge Current. If the bq34210-Q1 device does not detect a valid current within a time period of Learn Request Timeout after setting [LDSG], then the device will set [LFAULT], delay a time given by Auto Learn Retry Time, and then initiate a new learning phase.
  • Page 26 1.3.3.5 Learn Post-Relax Phase After the Learn Discharge Phase completes, the bq34210-Q1 device will disable the learning current and enter the Learn Post-Relax Phase, whereby the device again waits for relaxation of the cell, during which Voltage() is monitored for 100-s time windows. While in this phase, the device sets the [LRLX] flag. If the change in the consecutive 100-s averages of Voltage() is less than 4 µV, then relaxation is deemed...
  • Page 27 The bq34210-Q1 device will set the [RCELLR] flag if a reduction in the value of Rcell of more than 2% is detected.
  • Page 28 DRD Decisioning is used and RSD/RSDL Decisioning is not used. In the case where RSD/RSDL Decisioning is not being used, the user can set the Minimum Learn Time to 0 if frequent Rcell measurements are needed. General Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 29 If the system designer is concerned about the power drawn by the bq34210-Q1 timer, another option is for the system to power up the bq34210-Q1 device, maintain power long enough for the device to complete two learning phases and calculate a valid RRate value for evaluation.
  • Page 30 It then initiates the next learning cycle for the next initial learn pulse. However, if the Learn Voltage Restore is set = 0, then the bq34210-Q1 device will wait for the cell to be charged back after the Learn Post-Relax Phase is complete, but will immediately complete the learning cycle and initiate a new learning cycle for the next initial learn pulse.

  • Page 31: Functional Description

    0 = No Seal after POR (default) 1 = Seal after POR ALERT_POL = Sets the polarity of the ALERT pin 0 = ALERT is active low. SLUUBE8 – September 2018 Functional Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 32: External Pin Functions

    NI_DV = When set, the device performs primary charge termination using the –ΔVt algorithm. See Charging and Charge Termination. WAKE_EN, WK_TH1, These bits configure the current wake function. See the bq34210-Q1 Automotive 1-Series Cell WK_TH0 = System-Side CEDV Fuel Gauge for Rarely Discharged Batteries Data Sheet (SLUSCG1) for threshold values. External Pin Functions 2.2.1 Wake-Up Comparator...

  • Page 33: Temperature Measurement

    Battery Condition Warnings 2.4.1 Battery Low Warning The bq34210-Q1 device can indicate, and optionally trigger an alert signal, when the battery voltage falls below a programmable threshold. This feature is disabled if Battery Low Time is set to 0. NOTE: If Battery Low Time is set to 30 seconds or higher, the device may initiate an automatic offset calibration during the time window, resulting in the BATLOW signal being delayed approximately an additional 15–20 seconds beyond the Battery Low Time setting.

  • Page 34: Battery High Warning

    BatteryStatus()[BATLOW] = 0 2.4.2 Battery High Warning The bq34210-Q1 device can indicate, and optionally trigger an alert signal, when the battery voltage falls below a programmable threshold. This feature is disabled if Battery High Time is set to 0. Status...

  • Page 35: Charging And Charge Termination Indication

    This is when the ROM parameters are moved to volatile memory. • In NORMAL mode, the fuel gauge is fully powered and can run any allowable task. SLUUBE8 – September 2018 Functional Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 36 SLEEP | AverageCurrent() | < Sleep Current Fuel gauging and data update every 20 seconds = Sleep Figure 2-1. Power Mode Diagram for System Shutdown Functional Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 37: Normal Mode

    Once in SHUTDOWN mode, there are two methods to exit. A power cycle (battery removal and insertion) is one method. The second method uses the ALERT pin alternative function. Pulling the ALERT pin high (the time is specified in the data sheet) enables the bq34210-Q1 to exit SHUTDOWN mode and reenter NORMAL mode.

  • Page 38: First Ocv Measurement

    2.9.7 Internal Temp Model Internal Model Coefficient 1 through 4 characterize the internal thermistor of the device. Do not modify these values without consulting TI. Functional Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 39: Ext A Coef And Ext B Coef

    TCCLEARRSOC = Enables BatteryStatus()[TCA] flag clear when RelativeStateOfCharge() ≤ TC:Clear % RSOC Threshold 0 = Disabled 1 = Enabled (default) TCSETRSOC = Enables BatteryStatus()[TCA] flag set when RelativeStateOfCharge() ≥ TC:Set % RSOC Threshold 0 = Disabled (default) SLUUBE8 – September 2018 Functional Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 40: Soc Flag Configuration B (Soc Flag Config B) Register

    0 = Disabled 1 = Enabled (default) FDCLEARV = Enables BatteryStatus()[FD] flag clear when Voltage() ≥ FD:Clear Voltage Threshold 0 = Disabled (default) 1 = Enabled Functional Description SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 41: Cedv Gauging Configuration (Cedv Config) Register

    This value is the no-load cell voltage higher than the highest cell EDV threshold computed. 2.9.17 C0 This value is the no-load, capacity-related EDV adjustment factor. SLUUBE8 – September 2018 Functional Description Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 42: Age Factor

    2.9.22 C1 This value is the desired reserved battery capacity remaining at EDV0. 2.9.23 Age Factor This value enables the bq34210-Q1 device to correct the EDV detection algorithm to compensate for cell aging. 2.9.24 Fixed EDV0 This value is the EDV0 threshold if [CEDV] is clear in CEDV Config.

  • Page 43: Reserve Capacity

    2.9.40 Charge Inhibit Temp Low The bq34210-Q1 device does not allow the battery pack to charge if Temperature() is below Charge Inhibit Temp Low. The [CHGINH] bit is set in BatteryStatus(). The default value is 0°C. Charging is allowed once the temperature is above Charge Inhibit Temp Low plus Temp Hys value.

  • Page 44: Charge Inhibit Temp High

    2.9.41 Charge Inhibit Temp High The bq34210-Q1 device does not allow the battery pack to charge if Temperature() is above Charge Inhibit Temp High. The [CHGINH] bit is set in the BatteryStatus(). The default value is 45°C. Charging is allowed once the temperature is below Charge Inhibit Temp High plus Temp Hys value. The [CHGINH] bit is reset in the BatteryStatus() register.

  • Page 45: Fast Charge Current

    RemainingCapacity() is set equal to FullChargeCapacity(). 2. Delta Temperature (ΔT/Δt) method: For ΔT/Δt, the bq34210-Q1 device detects an increase in temperature over many seconds. The ΔT/Δt setting is programmable in the temperature step, Delta Temperature (0°C – 25.5°C), and the time step, Delta Temperature Time (0 s–1000 s).

  • Page 46: Charging Voltage

    During primary charge termination detection, one of the three requirements is that the accumulated change in capacity > 0.25 mAh per Current Taper Window for the bq34210-Q1 device to start trying to qualify a termination. It must be above this Minimum Taper Capacity before bq34210-Q1 starts trying to detect a primary charge termination.

  • Page 47: Sleep Voltage Time

    2.9.60.1 OT Charge Time If the [OTC] condition exists for a time that exceeds the OT Chg Time period, the bq34210-Q1 device goes into an overtemperature charge condition. This function is disabled if OT Chg Time is set to 0.

  • Page 48: Ot Chg Recovery

    2.9.62.1 OT Discharge Time If the [OTD] condition exists for a time period that exceeds the OT Dsg Time, the bq34210-Q1 device goes into an overtemperature discharge condition. This function is disabled if OT Dsg Time is set to 0.

  • Page 49: Communications

    SLUUBE8 – September 2018 Communications C Interface The slave-only bq34210-Q1 fuel gauge supports the standard I C read, incremental read, quick read, one byte write, and incremental write functions. The 7-bit device address (ADDR) is the most significant 7 bits of the hex address and is fixed as 1010101.

  • Page 50: C Command Waiting Time

    (INITIALIZATION, NORMAL), a ≤ 4-ms clock stretching period may occur within packets addressed for the fuel gauge as the I C interface performs normal data flow control. Communications SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 51: Data Commands

    Chapter 4 SLUUBE8 – September 2018 Data Commands The bq34210-Q1 fuel gauge uses a series of data commands to enable system reading and writing of battery information. Each data command has an associated command-code pair, as shown in Table 4-1.

  • Page 52: Control()/Control_Status(): 0X00 And 0X01

    EOS_EN 0x0021 ManufacturingStatus()[EOS_EN]. PIN_CONTROL_EN 0x0022 Toggles control of the ALERT pin. CAL_TOGGLE 0x002D Toggles OperationStatus()[CALMD] SEAL 0x0030 Places the fuel gauge in SEALED access mode Data Commands SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 53: Control_Status: 0X0000

    Active when set. (See Autocalibration.) BCA = Status bit indicating the fuel gauge board calibration routine is active. Active when set. RSVD = Reserved RSVD = Reserved SLUUBE8 – September 2018 Data Commands Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 54: Device_Number: 0X0001

    ALERT pin. 4.1.11 ACCUM_DSG_EN: 0x001E This MAC subcommand toggles the value of ManufacturingStatus()[ACDSG_EN]. 4.1.12 ACCUM_CHG_EN: 0x001F This MAC subcommand toggles the value of ManufacturingStatus()[ACCHG_EN]. Data Commands SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 55: Ignore_Selfdsg_En: 0X0020

    4.1.18 EOS_ABORT_LEARN: 0x003A This MAC subcommand instructs the bq34210-Q1 device to stop a learning phase. 4.1.19 EOS_RCELL_RRATE_LEARN: 0x003B This MAC subcommand instructs the bq34210-Q1 device to initiate an Initial Rcell and an Initial RRate measurement. 4.1.20 EOS_WARN_CLEAR: 0x003C This MAC subcommand instructs the bq34210-Q1 device to clear the EOS warning bits (this includes [DRDWARN], [RSDWARN], and [RSDLWARN]).

  • Page 56: Gauging_Status: 0X0056

    IGNORE_SD_EN = Enables user to ignore cell self-discharge ACCHG_EN = Enables accumulated charge integration in charge direction ACSDG_EN = Enables accumulated charge integration in discharge direction Data Commands SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 57: Alert_Set: 0X0068

    The data is ignored. Returns external temperature read from an external thermistor. Sets the Temperature() to be used for gauging Returns the Temperature() value previously written. calculations. SLUUBE8 – September 2018 Data Commands Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 58: Voltage(): 0X08 And 0X09

    This read-only command pair returns the compensated capacity of a fully charged battery. Units are mAh. FullChargeCapacity() is updated at regular intervals, as specified by the CEDV algorithm. Data Commands SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 59: Averagecurrent(): 0X14 And 0X15

    4.12 AccumulatedChargeTime(): 0x1C and 0x1D AccumulatedChargeTime() is covered in detail in Accumulated Charge Measurement. 4.13 LastAccumulatedCharge(): 0x1E and 0x1F LastAccumulatedCharge() is covered in detail in Accumulated Charge Measurement. SLUUBE8 – September 2018 Data Commands Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 60: Lastaccumulatedchargetime(): 0X20 And 0X21

    4.23 BLTChargeSet(): 0x36 and 0x37 The read/write word command updates the BLT set threshold that triggers the BLT interrupt in charge direction, and sets the OperationStatus()[BLTINT] bit. Data Commands SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 61: Operationstatus(): 0X3A And 0X3B

    The checksum is calculated as the complement of the sum of the ManufacturerAccessControl() and the MACData() bytes. MACDataLen() determines the number of bytes of MACData() that are included in the checksum. SLUUBE8 – September 2018 Data Commands Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 62: Macdatalen(): 0X61

    LCTO = Learn Charge Time Out This bit is set = 1 if the bq34210-Q1 device is in LEARN CHARGE mode and detects the charging time has exceeded Learn Charge Time Limit. This bit is reset to 0 when a new learning phase begins.
  • Page 63 LCHG = Learn CHARGE mode This bit is set = 1 if the bq34210-Q1 device is in learn CHARGE mode. If the device is controlling a charger directly through a device pin, then the value of this signal will be reflected on the selected pin.

  • Page 64: Eossafetysatus(): 0X66 And 0X67

    RSDLALERT = Resistance Slope Decisioning Long-Term Alert This bit is set = 1 if the bq34210-Q1 EOS Determination function detects the condition described above to trigger the [RSDLALERT] signal. This signal is cleared when the register is read or if a new learning phase begins.

  • Page 65: Eosstatus(): 0X68

    The bit will clear when the Initial Rcell learning and computation is complete. LTI = Learn Timer Invalid This bit is set = 1 if the bq34210-Q1 EOS Determination function detects that the timer was interrupted since the most recent Rcell was calculated. In this case, the RSD algorithm must capture two new Rcell values separated in time to calculate a new value of RRate and evaluate this for corresponding alerts and warnings.

  • Page 66: Analogcount(): 0X79

    RCELLR = Rcell Reduction Alert This bit is set = 1 if the bq34210-Q1 EOS Determination function detects a value of Rcell that is more than 2% below the previous value of Rcell. This signal is cleared when the register is read or if a new learning phase begins.

  • Page 67: Data Memory Interface

    Write 0xAA 0x00 0x36 0x72 The two commands must be run within 4 seconds and with no other commands in between them or the device will remain sealed. SLUUBE8 – September 2018 Data Memory Interface Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 68: Data Memory Summary

    Voltage Comp Coefficient 1 –32768 32767 7320 Calibration Temperature 0x9214 Voltage Comp Coefficient 2 –32768 32767 Calibration Temperature 0x9216 Voltage Comp Coefficient 3 –32768 32767 –71 Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 69 1200 0.1°C Safety 0x92A3 UT Dsg Time Safety 0x92A4 UT Dsg Recovery –400 1200 0.1°C Safety BATLOW 0x92A6 Battery Low Set Threshold 5000 3150 SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 70 Clear % RSOC Threshold Gas Gauging 0x92FC Set Voltage Threshold 5000 3200 Gas Gauging 0x92FE Clear Voltage Threshold 5000 3300 Gas Gauging 0x9300 Set % RSOC Threshold Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 71 Gas Gauging CEDV Profile 1 0x9379 Voltage 90% DOD –32768 32767 3439 Gas Gauging CEDV Profile 1 0x937B Voltage 100% DOD –32768 32767 2713 SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 72 65535 Decision Direct Resistance End Of Service 0x9330 DRD Warning Counts Counts Decision Direct Resistance End Of Service 0x933D Initial Rcell 32767 mΩ Decision Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 73 –32768 32767 Default) Calibration (ROM Temperature 0x4824 Voltage Comp Coefficient 3 –32768 32767 –71 Default) Calibration (ROM Temperature 0x4826 Voltage Comp Input Multiplier Default) SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 74 Safety (ROM 0x489C OT Dsg Recovery 1200 0.1°C Default) Safety (ROM 0x489E UT Chg –400 1200 0.1°C Default) Safety (ROM 0x48A0 UT Chg Time Default) Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 75 Flag Config A 0x0FFF 0x0C8C (ROM Default) Configuration 0x48F1 Flag Config B 0xFF 0x8C (ROM Default) Settings (ROM Configuration 0x4868 Alert_0 Config 0x00 0xFF 0x00 Default) SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 76 (ROM Default) Configuration Gas Gauging CEDV 0x48D3 OverLoad Current 32767 3400 (ROM Default) Configuration Gas Gauging CEDV 0.01%/da 0x48D7 Self Discharge Rate (ROM Default) Configuration Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 77 CEDV Profile 1 0x4971 Voltage 40% DOD –32768 32767 3725 (ROM Default) Gas Gauging CEDV Profile 1 0x4973 Voltage 50% DOD –32768 32767 3656 (ROM Default) SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 78 CEDV Profile 2 0x49AC EDV 2 Hold Time (ROM Default) Gas Gauging CEDV Profile 2 0x49AD Voltage 0% DOD –32768 32767 3355 (ROM Default) Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 79 End Of Service Resistance 0x4919 Learn Discharge Current 32767 (ROM Default) Learning End Of Service Resistance Learn Discharge Current 0x491B (ROM Default) Learning Boundary SLUUBE8 – September 2018 Data Memory Summary Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 80 End Of Service Resistance Slope 0x4939 RSDL Alert Level 65535 (ROM Default) Decision End Of Service Resistance Slope 0x493B RSDL Warning Level 65535 (ROM Default) Decision Data Memory Summary SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 81: Application Example

    2 is clear. May take up to 1 second. If the device was previously SEALED, return to SEALED mode by wr 0x00 0x30 0x00; sending the Control (0x0030) subcommand. SLUUBE8 – September 2018 Application Example Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 82: Gaugeparcal

    The GPC tool enables a user to increase the accuracy of the fuel gauge IC over temperature. For more information and detailed documents, go to the GAUGEPARCAL product page. Application Example SLUUBE8 – September 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 83: Revision History

    Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Date Revision Notes September 2018 Initial Release SLUUBE8 – September 2018 Revision History Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 84 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2018, Texas Instruments Incorporated...

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