米6体育平台手机版

SLUUCP8 June 2024 BQ41Z50

1
Read This First
1. About This Manual
2. Notational Conventions
3. Trademarks
1 Introduction
2 Protections
1. 2.1 Introduction
2. 2.2 Cell Undervoltage Protection
3. 2.3 Cell Undervoltage Compensated Protection
4. 2.4 Cell Overvoltage Protection
5. 2.5 Overcurrent in Charge Protection
6. 2.6 Overcurrent in Discharge Protection
7. 2.7 Hardware-Based Protection
  1. 2.7.1 Overload in Discharge Protection
  2. 2.7.2 Short Circuit in Charge Protection
  3. 2.7.3 Short Circuit in Discharge Protection
8. 2.8 Temperature Protections
9. 2.9 Overtemperature in Charge Protection
10. 2.10 Overtemperature in Discharge Protection
11. 2.11 Delta Cell Overtemperature Protection
12. 2.12 Overtemperature FET Protection
13. 2.13 Undertemperature in Charge Protection
14. 2.14 Undertemperature in Discharge Protection
15. 2.15 SBS Host Watchdog Protection
16. 2.16 Precharge Timeout Protection
17. 2.17 Fast Charge Timeout Protection
18. 2.18 Overcharge Protection
19. 2.19 OverCharging Voltage Protection
20. 2.20 OverCharging Current Protection
21. 2.21 OverPrecharging Current Protection
3 Permanent Fail
1. 3.1 Introduction
  1. 3.1.1 Black Box Recorder
  2. 3.1.2 GPIO Control During Permanent Failure
2. 3.2 Safety Cell Undervoltage Permanent Fail
  1. 3.2.1 SUV Check Option
3. 3.3 Safety Cell Overvoltage Permanent Fail
4. 3.4 Safety Overcurrent in Charge Permanent Fail
5. 3.5 Safety Overcurrent in Discharge Permanent Fail
6. 3.6 Safety Overtemperature Cell Permanent Fail
7. 3.7 Safety Overtemperature FET Permanent Fail
8. 3.8 QMax Imbalance Permanent Fail
9. 3.9 Cell Balancing Permanent Fail
10. 3.10 Impedance Permanent Fail
11. 3.11 Capacity Degradation Permanent Fail
12. 3.12 Voltage Imbalance At Rest Permanent Fail
13. 3.13 Voltage Imbalance Active Permanent Fail
14. 3.14 Charge FET Permanent Fail
15. 3.15 Discharge FET Permanent Fail
16. 3.16 Chemical Fuse Permanent Fail
17. 3.17 AFE Register Permanent Fail
18. 3.18 AFE Communication Permanent Fail
19. 3.19 NTC Permanent Fail
20. 3.20 Second Level Protection Permanent Fail
21. 3.21 Instruction Flash (IF) Checksum Permanent Fail
22. 3.22 Data Flash (DF) Permanent Fail
23. 3.23 Open Thermistor Permanent Fail (TS1, TS2, TS3, TS4)
24. 3.24 Cell Overvoltage Latch Permanent Failure
25. 3.25 Manual Permanent Failure
4 Advanced Charge Algorithm
1. 4.1 Introduction
2. 4.2 Charge Temperature Ranges
3. 4.3 Voltage Range
  1. 4.3.1 RelativeStateofCharge() Range
  2. 4.3.2 Voltage or RelativeStateofCharge() Range
4. 4.4 Charging Current
5. 4.5 Charging Voltage
6. 4.6 Valid Charge Termination
7. 4.7 Charge and Discharge Termination Flags
8. 4.8 Terminate Charge and Discharge Alarms
9. 4.9 Precharge
10. 4.10 Maintenance Charge
11. 4.11 Charge Control SMBus Broadcasts
12. 4.12 Charge Disabled
13. 4.13 Charge Inhibit
14. 4.14 Charge Suspend
15. 4.15 ChargingVoltage() Rate of Change
16. 4.16 ChargingCurrent() Rate of Change
17. 4.17 Charging Loss Compensation
18. 4.18 Cycle Count/SOH Based Degradation of Charging Voltage and Current
  1. 4.18.1 Degradation Modes
  2. 4.18.2 Degradation Process
    1. 4.18.2.1 Charging Voltage Degradation Process
    2. 4.18.2.2 Charging Current Degradation Process
19. 4.19 Elevated Charge Degradation
20. 4.20 Elevated Voltage Extended Charge Degradation
21. 4.21 Charge Voltage Compensation for System Impedance
22. 4.22 Cell Swelling Control (via Charging Voltage Degradation)
5 Power Modes
1. 5.1 Introduction
2. 5.2 NORMAL Mode
  1. 5.2.1 BATTERY PACK REMOVED Mode/System Present Detection
    1. 5.2.1.1 System Present
    2. 5.2.1.2 Battery Pack Removed
3. 5.3 SLEEP Mode
4. 5.4 SHUTDOWN Mode
5. 5.5 Option to Manage Unintended Wakeup from Shutdown
6. 5.6 Emergency FET Shutdown (EMSHUT)
7. 5.7 STORAGE Mode
8. 5.8 System Disconnect
6 Gauging
1. 6.1 Introduction
2. 6.2 Dynamic Z Track Configuration
3. 6.3 Gas Gauge Modes
4. 6.4 QMax and Ra
5. 6.5 FullChargeCapacity(FCC), RemainingCapacity(RemCap), and RelativeStateOfCharge(RSOC)
6. 6.6 Dynamic Z Track Configuration Options
7. 6.7 State of Health (SOH)
8. 6.8 TURBO Mode 3.0
9. 6.9 Battery Trip Point (BTP)
10. 6.10 Cell Interconnect IR Compensation
11. 6.11 RSOC Rounding Option
12. 6.12 RSOC 1% Hold
13. 6.13 Accumulated Charge Measurement
7 Cell Balancing
1. 7.1 Introduction
2. 7.2 Cell Balancing Setup
3. 7.3 Balancing Multiple Cells
4. 7.4 Cell Balancing Operation
5. 7.5 Voltage based Cell Balancing
8 LED Display
1. 8.1 Introduction
2. 8.2 LED Display of State-of-Charge / PERMANENT FAILURE / State-of-Health
3. 8.3 LED Display on Exit of a Reset
4. 8.4 LED Display Control Through AlternateManufacturerAccess()
9 IATA Support
1. 9.1 Initiating IATA Shutdown (Before Shipping)
2. 9.2 After Wakeup (Charging Is Connected for a Short Period to Wake)
10 TMP468 Temperature Sensor Support
1. 10.1 Description
2. 10.2 Physical Interface
3. 10.3 Configuration of TMP468
4. 10.4 TMP468 Communication Validation
5. 10.5 TMP468 Temperature Data Access
6. 10.6 TMP468 Temperature Data Use by the Device
7. 10.7 TMP468 Pass Through Access Commands
8. 10.8 TMP468 Power Management in BQ41Z50 Power Modes
11General Purpose Input Output (GPIO) Capability
1. 11.1 Description
12Lifetime Data Collection
1. 12.1 Description
2. 12.2 Reset
13Device Security
1. 13.1 Introduction
2. 13.2 SHA-1 and SHA-2 Description
3. 13.3 HMAC Description
4. 13.4 SHA-1 Authentication
5. 13.5 SHA-2 Authentication
6. 13.6 ECC Description
7. 13.7 Security Modes
14Manufacture Production
1. 14.1 Manufacture Testing
2. 14.2 Calibration
  1. 14.2.1 Calibration Data Flash
15Device SMBus Address
16SBS Commands
1. 16.1 0x00 ManufacturerAccess() and 0x44 ManufacturerBlockAccess()
  1. 16.1.1 ManufacturerAccess() 0x0000
  2. 16.1.2 ManufacturerAccess() 0x0001 Device Type
  3. 16.1.3 ManufacturerAccess() 0x0002 Firmware Version
  4. 16.1.4 ManufacturerAccess() 0x0003 Hardware Version
  5. 16.1.5 ManufacturerAccess() 0x0004 Instruction Flash Signature
  6. 16.1.6 ManufacturerAccess() 0x0005 Static DF Signature
  7. 16.1.7 ManufacturerAccess() 0x0006 Chemical ID
  8. 16.1.8 ManufacturerAccess() 0x0008 Static Chem DF Signature
  9. 16.1.9 ManufacturerAccess() 0x0009 All DF Signature
  10. 16.1.10 ManufacturerAccess() 0x000A STORAGE Mode
  11. 16.1.11 ManufacturerAccess() 0x0010 SHUTDOWN Mode
  12. 16.1.12 ManufacturerAccess() 0x0011 SLEEP Mode
  13. 16.1.13 ManufacturerAccess() 0x0013 AutoCCOffset
  14. 16.1.14 ManufacturerAccess() 0x001D Fuse Toggle
  15. 16.1.15 ManufacturerAccess() 0x001E PCHG FET Toggle
  16. 16.1.16 ManufacturerAccess() 0x001F CHG FET Toggle
  17. 16.1.17 ManufacturerAccess() 0x0020 DSG FET Toggle
  18. 16.1.18 ManufacturerAccess() 0x0021 Gauging
  19. 16.1.19 ManufacturerAccess() 0x0022 FET Control
  20. 16.1.20 ManufacturerAccess() 0x0023 Lifetime Data Collection
  21. 16.1.21 ManufacturerAccess() 0x0024 Permanent Failure
  22. 16.1.22 ManufacturerAccess() 0x0025 Black Box Recorder
  23. 16.1.23 ManufacturerAccess() 0x0026 Fuse
  24. 16.1.24 ManufacturerAccess() 0x0027 LED DISPLAY Enable
  25. 16.1.25 ManufacturerAccess() 0x0028 Lifetime Data Reset
  26. 16.1.26 ManufacturerAccess() 0x0029 Permanent Fail Data Reset
  27. 16.1.27 ManufacturerAccess() 0x002A Black Box Recorder Reset
  28. 16.1.28 ManufacturerAccess() 0x002B LED Toggle
  29. 16.1.29 ManufacturerAccess() 0x002C LED Display Press
  30. 16.1.30 ManufacturerAccess() 0x002D CALIBRATION Mode
  31. 16.1.31 ManufacturerAccess() 0x002E Lifetime Data Flush
  32. 16.1.32 ManufacturerAccess() 0x002F Lifetime Data SPEED UP Mode
  33. 16.1.33 ManufacturerAccess() 0x0030 Seal Device
  34. 16.1.34 ManufacturerAccess() 0x0035 Security Keys
  35. 16.1.35 ManufacturerAccess() 0x0037 Authentication Key
  36. 16.1.36 ManufacturerAccess() 0x0041 Device Reset
  37. 16.1.37 ManufacturerAccess() 0x0050 SafetyAlert
  38. 16.1.38 ManufacturerAccess() 0x0051 SafetyStatus
  39. 16.1.39 ManufacturerAccess() 0x0052 PFAlert
  40. 16.1.40 ManufacturerAccess() 0x0053 PFStatus
  41. 16.1.41 ManufacturerAccess() 0x0054 OperationStatus
  42. 16.1.42 ManufacturerAccess() 0x0055 ChargingStatus
  43. 16.1.43 ManufacturerAccess() 0x0056 GaugingStatus
  44. 16.1.44 ManufacturerAccess() 0x0057 ManufacturingStatus
  45. 16.1.45 ManufacturerAccess() 0x0058 AFE Register
  46. 16.1.46 ManufacturerAccess() 0x005A No Load Rem Cap
  47. 16.1.47 ManufacturerAccess() 0x005E ChargingStatusExt
  48. 16.1.48 ManufacturerAccess() 0x0060 Lifetime Data Block 1
  49. 16.1.49 ManufacturerAccess() 0x0061 Lifetime Data Block 2
  50. 16.1.50 ManufacturerAccess() 0x0062 Lifetime Data Block 3
  51. 16.1.51 ManufacturerAccess() 0x0063 Lifetime Data Block 4
  52. 16.1.52 ManufacturerAccess() 0x0064 Lifetime Data Block 5
  53. 16.1.53 ManufacturerAccess() 0x0065 Lifetime Data Block 6
  54. 16.1.54 ManufacturerAccess() 0x0066 Lifetime Data Block 7
  55. 16.1.55 ManufacturerAccess() 0x0067 Lifetime Data Block 8
  56. 16.1.56 ManufacturerAccess() 0x0068 Lifetime Data Block 9
  57. 16.1.57 ManufacturerAccess() 0x0069 Lifetime Data Block 10
  58. 16.1.58 ManufacturerAccess() 0x006A Lifetime Data Block 11
  59. 16.1.59 ManufacturerAccess() 0x006B Lifetime Data Block 12
  60. 16.1.60 ManufacturerAccess() 0x006C Lifetime Data Block 13
  61. 16.1.61 ManufacturerAccess() 0x006D Lifetime Data Block 14
  62. 16.1.62 ManufacturerAccess() 0x006E Lifetime Data Block 15
  63. 16.1.63 ManufacturerAccess() 0x006F Power Events
  64. 16.1.64 ManufacturerAccess() 0x0070 ManufacturerInfo
  65. 16.1.65 ManufacturerAccess() 0x0071 DAStatus1
  66. 16.1.66 ManufacturerAccess() 0x0072 DAStatus2
  67. 16.1.67 ManufacturerAccess() 0x0073 GaugeStatus1
  68. 16.1.68 ManufacturerAccess() 0x0074 GaugeStatus2
  69. 16.1.69 ManufacturerAccess() 0x0075 GaugeStatus3
  70. 16.1.70 ManufacturerAccess() 0x0076 CBStatus
  71. 16.1.71 ManufacturerAccess() 0x0077 StateofHealth
  72. 16.1.72 ManufacturerAccess() 0x0078 FilterCapacity
  73. 16.1.73 ManufacturerAccess() 0x0079 RSOCWrite
  74. 16.1.74 ManufacturerAccess() 0x007A ManufacturerInfoB
  75. 16.1.75 ManufacturerAccess() 0x007B ManufacturerInfoC
  76. 16.1.76 ManufacturerAccess() 0x007E Lifetime Data Block 16
  77. 16.1.77 ManufacturerAccess() 0x0081 TMPRead1
  78. 16.1.78 ManufacturerAccess() 0x0082 TMPRead2
  79. 16.1.79 ManufacturerAccess() 0x0083 TMPRead3
  80. 16.1.80 ManufacturerAccess() 0x0084 TMPRead4
  81. 16.1.81 ManufacturerAccess() 0x0085 TMPRead5
  82. 16.1.82 ManufacturerAccess() 0x0086 TMPRead6
  83. 16.1.83 ManufacturerAccess() 0x0087 TMPRead7
  84. 16.1.84 ManufacturerAccess() 0x008A TMP Load Config
  85. 16.1.85 ManufacturerAccess() 0x008B TMP Write Register
  86. 16.1.86 ManufacturerAccess() 0x0098 AccumulationChargeEnable
  87. 16.1.87 ManufacturerAccess() 0x0099 AccumulationDischargeEnable
  88. 16.1.88 ManufacturerAccess() 0x009A AccumulationReset
  89. 16.1.89 ManufacturerAccess() 0x009B AccumulationStop
  90. 16.1.90 ManufacturerAccess() 0x009C AccumulationStart
  91. 16.1.91 ManufacturerAccess() 0x009D AccumulationChargeThreshold
  92. 16.1.92 ManufacturerAccess() 0x009E AccumulationDischargeThreshold
  93. 16.1.93 ManufacturerAccess() 0x009F AccumulatedChargeTime
  94. 16.1.94 ManufacturerAccess() 0x00B0 ChargingVoltageOverride
  95. 16.1.95 ManufacturerAccess() 0x00B2 ChargingCurrentOverride
  96. 16.1.96 ManufacturerAccess() 0x00F0 IATAShutdown
  97. 16.1.97 ManufacturerAccess() 0x00F1 IATARm
  98. 16.1.98 ManufacturerAccess() 0x00F2 IATAFcc
  99. 16.1.99 ManufacturerAccess() 0x0F00 ROM Mode
  100. 16.1.100 ManufacturerAccess() 0x3008 WriteTemp
  101. 16.1.101 ManufacturerAccess() 0x4000–0x5FFF DataFlashAccess
  102. 16.1.102 ManufacturerAccess() 0xF080 and 0xF081 Output CCADCCal Control
  103. 16.1.103 ManufacturerAccess() 0xF082 OutputShortedCCADCCal
2. 16.2 0x01 RemainingCapacityAlarm()
3. 16.3 0x02 RemainingTimeAlarm()
4. 16.4 0x03 BatteryMode()
5. 16.5 0x04 AtRate()
6. 16.6 0x05 AtRateTimeToFull()
7. 16.7 0x06 AtRateTimeToEmpty()
8. 16.8 0x07 AtRateOK()
9. 16.9 0x08 Temperature()
10. 16.10 0x09 Voltage()
11. 16.11 0x0A Current()
12. 16.12 0x0B AverageCurrent()
13. 16.13 0x0C MaxError()
14. 16.14 0x0D RelativeStateOfCharge()
15. 16.15 0x0E AbsoluteStateOfCharge()
16. 16.16 0x0F RemainingCapacity()
17. 16.17 0x10 FullChargeCapacity()
18. 16.18 0x11 RunTimeToEmpty()
19. 16.19 0x12 AverageTimeToEmpty()
20. 16.20 0x13 AverageTimeToFull()
21. 16.21 0x14 ChargingCurrent()
22. 16.22 0x15 ChargingVoltage()
23. 16.23 0x16 BatteryStatus()
24. 16.24 0x17 CycleCount()
25. 16.25 0x18 DesignCapacity()
26. 16.26 0x19 DesignVoltage()
27. 16.27 0x1A SpecificationInfo()
28. 16.28 0x1B ManufacturerDate()
29. 16.29 0x1C SerialNumber()
30. 16.30 0x20 ManufacturerName()
31. 16.31 0x21 DeviceName()
32. 16.32 0x22 DeviceChemistry()
33. 16.33 0x23 ManufacturerData()
34. 16.34 0x2F Authenticate()
35. 16.35 0x3C CellVoltage4()
36. 16.36 0x3D CellVoltage3()
37. 16.37 0x3E CellVoltage2()
38. 16.38 0x3F CellVoltage1()
39. 16.39 0x48 GPIORead()
40. 16.40 0x49 GPIOWrite()
41. 16.41 0x4A BTPDischargeSet()
42. 16.42 0x4B BTPChargeSet()
43. 16.43 0x4F StateofHealth()
44. 16.44 0x50 SafetyAlert()
45. 16.45 0x51 SafetyStatus()
46. 16.46 0x52 PFAlert()
47. 16.47 0x53 PFStatus()
48. 16.48 0x54 OperationStatus()
49. 16.49 0x55 ChargingStatus()
50. 16.50 0x56 GaugingStatus()
51. 16.51 0x57 ManufacturingStatus()
52. 16.52 0x58 AFERegister()
53. 16.53 0x59 MaxTurboPwr()
54. 16.54 0x5A SusTurboPwr()
55. 16.55 0x5B TurboPackR()
56. 16.56 0x5C TurboSysR()
57. 16.57 0x5D TurboEdv()
58. 16.58 0x5E MaxTurboCurr()
59. 16.59 0x5F SusTurboCurr()
60. 16.60 0x60 LifetimeDataBlock1()
61. 16.61 0x61 LifetimeDataBlock2()
62. 16.62 0x62 LifetimeDataBlock3()
63. 16.63 0x63 LifetimeDataBlock4()
64. 16.64 0x64 LifetimeDataBlock5()
65. 16.65 0x65 LifetimeDataBlock6()
66. 16.66 0x66 LifetimeDataBlock7()
67. 16.67 0x67 LifetimeDataBlock8()
68. 16.68 0x68 TurboRhfEffective()
69. 16.69 0x69 TurboVload()
70. 16.70 0x6A LifetimeDataBlock 11()
71. 16.71 0x6B LifetimeDataBlock12()
72. 16.72 0x70 ManufacturerInfo()
73. 16.73 0x71 DAStatus1()
74. 16.74 0x72 DAStatus2()
75. 16.75 0x73 GaugeStatus1()
76. 16.76 0x74 GaugeStatus2()
77. 16.77 0x75 GaugeStatus3()
78. 16.78 0x76 CBStatus()
79. 16.79 0x77 StateofHealth()
80. 16.80 0x78 FilteredCapacity()
81. 16.81 0xXX RTC_Access()
17Data Flash Values
1. 17.1 Data Formats
2. 17.2 Calibration
  1. 17.2.1 Cell 1..4 Interconnect Resistance
3. 17.3 Settings
4. 17.4 Advanced Charging Algorithm
5. 17.5 Power
6. 17.6 LED Support
  1. 17.6.1 LED Config
7. 17.7 System Data
8. 17.8 SBS Configuration
  1. 17.8.1 Data
9. 17.9 Lifetimes
10. 17.10 Protections
11. 17.11 Permanent Fail
12. 17.12 PF Status
13. 17.13 Black Box
  1. 17.13.1 Safety Status
  2. 17.13.2 PF Status
14. 17.14 Gas Gauging
15. 17.15 RA Table
16. 17.16 TMP468
17. 17.17 Data Flash Summary
A AFE Threshold and Delay Settings
1. A.1 Overload in Discharge Protection (AOLD)
2. A.2 Short Circuit in Charge (ASCC)
3. A.3 Short Circuit in Discharge (ASCD1 and ASCD2)
4. A.4 Over Temperature Protection
B Sample Filter Settings
C Revision History

12.1 Description

Useful for analysis, the device has extensive capabilities for logging events over the life of the battery. The Lifetime Data Collection is enabled by setting ManufacturingStatus()LF_EN]. The data is collected in RAM and only written to DF under the following conditions to avoid wear out of the data flash:

Every 10 hours if RAM content is different from flash
In permanent fail, before data flash updates are disabled
Before scheduled shutdown
Before low voltage shutdown and the voltage is above the Valid Update Voltage

The Lifetime Data stops collecting under following conditions:

After permanent fail.
Lifetime Data Collection is disabled by setting ManufacturingStatus()[LF_EN] = 0.

When the gauge is unsealed, the following ManufacturingStatus() can be used for testing Lifetime Data.

LifetimeDataReset() can be used to reset the Lifetime Data.
LifetimeDataFlush() can be used to flush out RAM Lifetime Data to data flash.
LifetimeDataSpeedupMode() can be used to increase the rate the Lifetime Data is incremented.

The collection of the following data starts when [LF_EN] is set.

Total firmware runtime
Voltage
- Maximum/minimum cell voltage for each cell
- Maximum Delta Cell Voltage at any given time (that is, the max cell imbalance voltage)
Current
- Maximum charge/discharge current
- Maximum average discharge current
- Maximum average discharge power
For safety events that trigger the SafetyStatus()
- Number of safety events
- Cycle count at last safety event(s)
Charging Events
- Number of valid charge terminations (That is, the number of times [VCT] is set.)
- Cycle Count at Last Charge Termination
Gauging Events
- Number of QMax updates
- Cycle Count at Last QMax update
- Number of RA updates and disable
- Cycle Count at Last RA update and disable
Power Events
- Number of resets, partial resets, and watchdog resets
- Number of shutdowns
Cell balancing (This data is stored with a resolution of 1 second up to over 100 years.)
- Cell balancing time for each cell
Temperature in CHARGE, DISCHARGE and RELAX modes
- Max/Min Cell Temp
- Delta Cell Temp (max delta cell temperature across the thermistors that are used to report cell temperature)
- Max/Min Int Temp Sensor
- Max FET Temp
- Max/Min Temp for all thermistors (TS1–TS4)
- Max/Min Temp for all TMP468 thermistors (TMP468_1–TMP468_8)
State of Health
- Minimum SOH FCC

Time (This data is stored with a resolution of 1 second up to over 100 years.)

Total runtime
Time spent in different RelativeStateOfCharge() – Temperature() ranges
- Eight programmableRelativeStateOfCharge() ranges for each of the eight programmable temperature ranges
- 64RelativeStateOfCharge() – Temperature() runtime values

Table 12-1 Time Spent in RelativeStateOfCharge() – Temperature() Ranges

	RSOC A	RSOC B	RSOC C	RSOC D	RSOC E	RSOC F	RSOC G	RSOC H
LFT_UUT
LFT_UT
LFT_LT
LFT_STL
LFT_RT
LFT_STH
LFT_HT
LFT_OT