SLUUC54C February 2020 – March 2024 BQ27Z558 , BQ27Z561 , BQ27Z561-R2
- 1
- 1 Preface
- Introduction
- 2 Basic Measurement System
- 3 Power Modes
-
4 Gauging
- 4.1 Impedance Track (IT) Model
- 4.2 Thermal Model
- 4.3 Gauging Capacities
- 4.4 Learning Cycles
- 4.5 Impedance Track Configuration
- 4.6 Gas Gauge Modes
- 4.7 QMax and Ra
- 4.8 FullChargeCapacity (FCC), RemainingCapacity (RemCap), and RelativeStateOfCharge (RSOC)
- 4.9 Impedance Track (IT) Configuration Options
- 4.10 State-Of-Health (SOH)
- 4.11 TURBO Mode 3.0
- 4.12 Battery Trip Point (BTP)
- 5 Lifetime Data Collection
- 6 Host Interrupts
- 7 Programmable Pulse Width
- 8 Device Security
-
9 Advanced Charge Algorithm
- 9.1 Introduction
- 9.2 Charge Temperature Ranges
- 9.3 Voltage Range
- 9.4 Charging Current
- 9.5 Charging Voltage
- 9.6 Charging Degradation Modes
- 9.7 Cell Swelling Control (via Charging Voltage Degradation)
- 9.8 Valid Charge Termination
- 9.9 Charge and Discharge Alarms
- 9.10 Terminate Charge and Discharge Alarms
- 9.11 Precharge
- 9.12 Maintenance Charge
- 9.13 Charge Inhibit
- 10Communications
- 11Manufacture Production
- Calibration
-
12Data Commands
- 12.1
Standard Data Commands
- 12.1.1 0x00/01 ManufacturerAccess()/ControlStatus()
- 12.1.2 0x02/03 AtRate()
- 12.1.3 0x04/05 AtRateTimeToEmpty()
- 12.1.4 0x06/07 Temperature()
- 12.1.5 0x08/09 Voltage()
- 12.1.6 0x0A/0B BatteryStatus()
- 12.1.7 0x0C/0D Current()
- 12.1.8 0x10/11 RemainingCapacity()
- 12.1.9 0x12/13 FullChargeCapacity()
- 12.1.10 0x14/15 AverageCurrent()
- 12.1.11 0x16/17 AverageTimeToEmpty()
- 12.1.12 0x18/19 AverageTimeToFull()
- 12.1.13 0x1E/1F MaxLoadCurrent()
- 12.1.14 0x20/21 MaxLoadTimeToEmpty()
- 12.1.15 0x22/23 AveragePower()
- 12.1.16 0x28/29 InternalTemperature()
- 12.1.17 0x2A/2B CycleCount()
- 12.1.18 0x2C/2D RelativeStateOfCharge()—RSOC
- 12.1.19 0x2E/2F StateOfHealth()
- 12.1.20 0x30/31 ChargingVoltage()
- 12.1.21 0x32/33 ChargingCurrent()
- 12.1.22 0x34/35 TerminateVoltage()
- 12.1.23 0x36/0x37/0x38/0x39 Timestamp()
- 12.1.24 QMax Cycles() 0x3A/3B
- 12.1.25 0x3C/3D DesignCapacity()
- 12.1.26 0x3E/3F AltManufacturerAccess()
- 12.1.27 0x40/0x5F MACData()
- 12.1.28 0x60 MACDataChecksum()
- 12.1.29 0x61 MACDataLength()
- 12.1.30 0x62/63 VoltHiSetThreshold
- 12.1.31 0x64/65 VoltHiClearThreshold
- 12.1.32 0x66/67 VoltLoSetThreshold
- 12.1.33 0x68/69 VoltLoClearThreshold
- 12.1.34 0x6A TempHiSetThreshold
- 12.1.35 0x6B TempHiClearThreshold
- 12.1.36 0X6C TempLoSetThreshold
- 12.1.37 0x6D TempLoClearThreshold
- 12.1.38 0x6E InterruptStatus()
- 12.1.39 0x6F SOCSetDeltaThreshold
- 12.2 0x70, 0x71 SusTurboPwr()
- 12.3 0x72, 0x73 MaxTurboPwr()
- 12.4 0x74, 0x75 SusTurboCurr()
- 12.5 0x76, 0x77 MaxTurboCurr()
- 12.6 0x78, 0x79 TurboSysR()
- 12.7 0x7A, 0x7B TurboEdv()
- 12.8
0x00, 0x01 ManufacturerAccess() and 0x3E, 0x3F AltManufacturerAccess()
- 12.8.1 AltManufacturerAccess() 0x0001 Device Type
- 12.8.2 AltManufacturerAccess() 0x0002 Firmware Version
- 12.8.3 AltManufacturerAccess() 0x0003 Hardware Version
- 12.8.4 AltManufacturerAccess() 0x0004 Instruction Flash Signature
- 12.8.5 AltManufacturerAccess() 0x0005 Static DF Signature
- 12.8.6 AltManufacturerAccess() 0x0006 Chemical ID
- 12.8.7 AltManufacturerAccess() 0x0007 Pre_MACWrite
- 12.8.8 AltManufacturerAccess() 0x0008 Static Chem DF Signature
- 12.8.9 AltManufacturerAccess() 0x0009 All DF Signature
- 12.8.10 AltManufacturerAccess() 0x0012 Device Reset
- 12.8.11 AltManufacturerAccess() 0x0017 QMax Day
- 12.8.12 AltManufacturerAccess() 0x0021 Gauging
- 12.8.13 AltManufacturerAccess() 0x0023 Lifetime Data Collection
- 12.8.14 AltManufacturerAccess() 0x0028 Lifetime Data Reset
- 12.8.15 AltManufacturerAccess() 0x002D CALIBRATION Mode
- 12.8.16 ManufacturerAccess() 0x002E Lifetime Data Flush
- 12.8.17 ManufacturerAccess() 0x002F Lifetime Data SPEED UP Mode
- 12.8.18 AltManufacturerAccess() 0x0030 Seal Device
- 12.8.19 AltManufacturerAccess() 0x0035 Security Keys
- 12.8.20 AltManufacturerAccess() 0x0037 Authentication Key
- 12.8.21 AltManufacturerAccess() 0x0041 Device Reset
- 12.8.22 AltManufacturerAccess() 0x0044 Set Deep Sleep
- 12.8.23 AltManufacturerAccess() 0x0045 Clear Deep Sleep
- 12.8.24 AltManufacturerAccess() 0x0046 Pulse GPIO
- 12.8.25 AltManufacturerAccess() 0x0047 Tambient Sync
- 12.8.26 AltManufacturerAccess() 0x0047 Clear GPIO
- 12.8.27 AltManufacturerAccess() 0x0047 Set GPIO
- 12.8.28 AltManufacturerAccess() 0x004A Device Name
- 12.8.29 AltManufacturerAccess() 0x004B Device Chem
- 12.8.30 AltManufacturerAccess() 0x004C Manufacturer Name
- 12.8.31 AltManufacturerAccess() 0x004D Manufacture Date
- 12.8.32 AltManufacturerAccess() 0x004E Serial Number
- 12.8.33 AltManufacturerAccess() 0x0054 OperationStatus
- 12.8.34 AltManufacturerAccess() 0x0055 ChargingStatus
- 12.8.35 AltManufacturerAccess() 0x0056 GaugingStatus
- 12.8.36 AltManufacturerAccess() 0x0057 ManufacturingStatus
- 12.8.37 AltManufacturerAccess() 0x0060 Lifetime Data Block 1
- 12.8.38 AltManufacturerAccess() 0x0062 Lifetime Data Block 3
- 12.8.39 ManufacturerAccess() 0x0063 Lifetime Data Block 4
- 12.8.40 ManufacturerAccess() 0x0065-0x006B Lifetime SOC Range Table Data Blocks
- 12.8.41 AltManufacturerAccess() 0x0070 ManufacturerInfo
- 12.8.42 AltManufacturerAccess() 0x0071 DAStatus1
- 12.8.43 AltManufacturerAccess() 0x0072 DAStatus2
- 12.8.44 AltManufacturerAccess() 0x0073 ITStatus1
- 12.8.45 AltManufacturerAccess() 0x0074 ITStatus2
- 12.8.46 AltManufacturerAccess() 0x0075 ITStatus3
- 12.8.47 AltManufacturerAccess() 0x0077 FCC_SOH
- 12.8.48 AltManufacturerAccess() 0x0078 Filtered Capacity
- 12.8.49 AltManufacturerAccess() 0x007A ManufacturerInfoB
- 12.8.50 AltManufacturerAccess() 0x007B ManufacturerInfoC
- 12.8.51 ManufacturerAccess() 0x00B0 ChargingVoltageOverride
- 12.8.52 AltManufacturerAccess() 0x0F00 ROM Mode
- 12.8.53 Data Flash Access() 0x4000–0x5FFF
- 12.8.54 AltManufacturerAccess() 0x7C40 Switch to HDQ
- 12.8.55 AltManufacturerAccess() 0xF080 Exit Calibration Output Mode
- 12.8.56 AltManufacturerAccess() 0xF081 Output CC and ADC for Calibration
- 12.1
Standard Data Commands
- 13Data Flash Access and Format
- 14Data Flash Summary
- 15Revision History
9.7 Cell Swelling Control (via Charging Voltage Degradation)
Cell swelling can occur when the cell temperature and cell voltage are above certain thresholds. In these situations, the charging voltage can be stepped down gradually until the cell temperature moves back down.
This scheme works (as shown in Figure 9-4) when enabled by setting [CS_CV] (default is cleared) in the Charging Configuration register. When the max cell voltage1..4 and cell temperature are above the Voltage Threshold and Temperature Threshold, respectively, for the period defined by Time Interval, then the charging voltage is stepped down by Delta Voltage. This step down continues until either the max cell voltage1..4 and cell temperature conditions go away (that is, cell swelling reduces) or the step down reaches Min CV.
The charging voltage reduction/degradation resulting from this feature is reset when exiting CHARGE mode.
Note:
This degradation works in conjunction with other degradation features; therefore, use with care.
Figure 9-4 Cell Swelling Control