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bq78350-R1
Texas Instruments bq78350-R1 Technical Reference
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bq78350-R1
Technical
Reference
Literature
Number:
SLUUBD3D
September
2015
–
Revised
September
2018
2
Table of Contents
Default Chapter
2
Table of Contents
2
Preface
9
1 Introduction
10
2 Basic Measurement System
11
Introduction
11
Current and Coulomb Counting
11
Voltage
11
Temperature
12
FET Temperature Measurement
12
Temperature Enable
12
Temperature Mode Configuration
12
Temperature Ranges
13
Basic Configuration Options
13
DA Configuration
13
FET Options
14
AFE Cell Map
15
3 Protections
17
Introduction
17
General Protections Configuration
17
Enabled Protections
18
Enabled Removal Recovery
20
FET Action Options for Current Protections
21
Cell Undervoltage Protection
21
Cell Overvoltage Protection
22
Overcurrent in Charge Protection
22
Overcurrent in Discharge Protection
23
Hardware-Based Protection
24
Overload in Discharge Protection
24
Short Circuit in Discharge Protection
26
AFE ALERT OVRD Protection
27
Temperature Protections
28
Overtemperature in Charge Protection
28
Overtemperature in Discharge Protection
29
Undertemperature in Charge Protection
29
Undertemperature in Discharge Protection
29
Overtemperature FET Protection
30
Precharge Timeout Protection
30
Fast Charge Timeout Protection
31
Overcharge Protection
31
4 Permanent Fail
32
Introduction
32
Permanent Failure Configuration
32
Enabling Use of the SAFE Pin
34
Safety Cell Undervoltage Permanent Fail
36
Safety Cell Overvoltage Permanent Fail
37
Safety Overcurrent in Charge Permanent Fail
37
Safety Overcurrent in Discharge Permanent Fail
38
Safety Overtemperature Cell Permanent Fail
38
Safety Overtemperature FET (SOTF) Permanent Fail
38
Voltage Imbalance at Rest Permanent Fail
39
Charge FET Permanent Fail
39
Discharge FET Permanent Fail
39
External Override Permanent Fail
40
AFE Register Permanent Fail
40
AFE Communication Permanent Fail
41
AFE XREADY Permanent Fail
41
Instruction Flash (IF) Checksum Permanent Fail
41
Data Flash (DF) Permanent Fail
41
Open Thermistor Permanent Fail (TS1, TS2, TS3)
42
PF Status Snapshot Data Flash
42
Device Status Data
42
Device Voltage Data
43
Device Current Data
44
Device Temperature Data
44
AFE Regs
44
Black Box Recorder
44
Black Box Recorded Data
45
5 Charge Algorithm
47
Introduction
47
Fast and Pre-Charging
47
Valid Charge Termination
48
Charge and Discharge Alarms
48
Charge Disable
51
Charge Inhibit
51
Charge Suspend
52
6 System Present
53
Introduction
53
System Present Detection and Action
53
7 Cell Balancing
54
Introduction
54
Cell Balancing Configuration
55
8 Power Modes
56
Introduction
56
NORMAL Mode
56
SLEEP Mode
56
Device Sleep
56
Manufactureraccess() MAC Sleep
57
IN SYSTEM SLEEP Mode
57
SHUTDOWN Mode
57
Voltage Based Shutdown
57
Time Based Shutdown
58
Manufactureraccess() MAC Shutdown
58
Power Mode Indication (PWRM)
58
9 CEDV Gas Gauging
59
Introduction
59
Main Fuel Gauge Registers
59
Fuel Gauge Operating Modes
60
Full Charge Capacity
61
Initial Battery Capacity at Device Reset
62
Capacity Learning (FCC Update)
62
Qualified Discharge
63
End-Of-Discharge Thresholds and Capacity Correction
64
Reserve Capacity
65
EDV Discharge Rate and Temperature Compensation
65
EDV Age Factor
66
Self Discharge
67
Battery Electronic Load Compensation
67
Gauging Configuration Options
67
10 Lifetime Data Collection
70
Description
70
Lifetimes
71
Lifetimedatablock1() 0X0060
71
Lifetimedatablock2() 0X0061
71
Lifetimedatablock3() 0X0062
71
Lifetimedatablock4() 0X0063
72
Lifetimedatablock5() 0X0064
73
Lifetimedatablock6() 0X0065
73
Lifetimedatablock7() 0X0066
73
11 Device Security
75
Description
75
HMAC Description
75
Authentication
75
Security Modes
76
FULL ACCESS or UNSEALED to SEALED
76
SEALED to UNSEALED
76
UNSEALED to FULL ACCESS
76
12 Manufacture Production
77
Manufacture Testing
77
Manufacturing Status Configuration
77
Calibration
78
Cell Voltage Calibration
79
External Average Voltage Calibration
79
VAUX Voltage Calibration
80
Voltage Calibration Data Flash
80
Current Calibration
80
Deadbands
81
Current Calibration Data Flash
82
Temperature Calibration
82
Temperature Calibration Data Flash
82
External Temp Model
83
13 Display Port
84
Introduction
84
Light Emitting Diode (LED) Display Operation
84
Liquid Crystal Display (LCD) Operation
84
Display Activation
84
LED Display Activation
84
LCD Display Activation
85
State-Of-Charge Display
85
LED and LCD Display Configuration
85
LCD Specific Display Configuration
86
LED Configuration Register
86
14 Host Controlled GPIO
88
Introduction
88
Configuring the GPIO
88
Using the GPIO
91
15 Key Input
92
Introduction
92
Input Configuration
92
Operation
92
16 Communications
93
Introduction
93
Smbus on and off State
93
Packet Error Checking
93
Slave Address
93
Broadcasts to Smart Charger and Smart Battery Host
94
SMB Configuration Options
95
17 SBS Commands
96
Summary
96
0X00 Manufactureraccess() and 0X44 Manufacturerblockaccess()
98
Manufactureraccess() 0X0000 Manufacturerblockaccess() or Manufacturerdata()
100
Manufactureraccess() 0X0001 Device Type
100
Manufactureraccess() 0X0002 Firmware Version
100
Manufactureraccess() 0X0003 Hardware Version
100
Manufactureraccess() 0X0004 Instruction Flash Signature
100
Manufactureraccess() 0X0005 Static DF Signature
100
Manufactureraccess() 0X0006 Chemical ID
100
Manufactureraccess() 0X0008 Static Chem DF Signature
101
Manufactureraccess() 0X0009 All DF Signature
101
Manufactureraccess() 0X0010 SHUTDOWN Mode
101
Manufactureraccess() 0X0011 SLEEP Mode
101
Manufactureraccess() 0X001B Cell Balance Toggle
102
Manufactureraccess() 0X001C AFE Delay Disable
102
Manufactureraccess() 0X001D SAFE Toggle
102
Manufactureraccess() 0X001E PRE-CHG FET
102
Manufactureraccess() 0X001F CHG FET
102
Manufactureraccess() 0X0020 DSG FET
102
Manufactureraccess() 0X0022 FET Control
102
Manufactureraccess() 0X0023 Lifetime Data Collection
103
Manufactureraccess() 0X0024 Permanent Failure
103
Manufactureraccess() 0X0025 Black Box Recorder
103
Manufactureraccess() 0X0026 SAFE
103
Manufactureraccess() 0X0027 LED Display Enable
103
Manufactureraccess() 0X0028 Lifetime Data Reset
103
Manufactureraccess() 0X0029 Permanent Fail Data Reset
103
Manufactureraccess() 0X002A Black Box Recorder Reset
104
Manufactureraccess() 0X002B LED TOGGLE
104
Manufactureraccess() 0X002C LED Display Press
104
Manufactureraccess() 0X002D CALIBRATION Mode
104
Manufactureraccess() 0X0030 Seal Device
104
Manufactureraccess() 0X0035 Security Keys
104
Manufactureraccess() 0X0037 Authentication Key
104
Manufactureraccess() 0X0041 Device Reset
105
Manufactureraccess() 0X0050 Safetyalert
105
Manufactureraccess() 0X0051 Safetystatus
106
Manufactureraccess() 0X0052 Pfalert
108
Manufactureraccess() 0X0053 Pfstatus
109
Manufactureraccess() 0X0054 Operationstatus
111
Manufactureraccess() 0X0055 Chargingstatus
113
Manufactureraccess() 0X0056 Gaugingstatus
114
Manufactureraccess() 0X0057 Manufacturingstatus
115
Manufactureraccess() 0X0058 Afestatus
117
Manufactureraccess() 0X0059 Afeconfig
117
Manufactureraccess() 0X005A Afevcx
117
Manufactureraccess() 0X005B Afedata
117
Manufactureraccess() 0X0060 Lifetime Data Block 1
117
Manufactureraccess() 0X0061 Lifetime Data Block 2
118
Manufactureraccess() 0X0062 Lifetime Data Block 3
118
Manufactureraccess() 0X0063 Lifetime Data Block 4
118
Manufactureraccess() 0X0064 Lifetime Data Block 5
118
Manufactureraccess() 0X0065 Lifetime Data Block 6
118
Manufactureraccess() 0X0066 Lifetime Data Block 7
118
Manufactureraccess() 0X0070 Manufacturerinfo
119
Manufactureraccess() 0X0071 Dastatus1
119
Manufactureraccess() 0X0072 Dastatus2
119
Manufactureraccess() 0X0080 CUV Snapshot
119
Manufactureraccess() 0X0081 COV Snapshot
120
Manufactureraccess() 0X0F00 ROM Mode
120
Data Flash Access() 0X4000-0X5Fff
120
Manufactureraccess() 0Xf080 Exit Calibration Output Mode
121
Manufactureraccess() 0Xf081 Outputcellvoltageforcalibration
121
Manufactureraccess() 0Xf082 Outputcellvoltageccandtempforcalibration
122
0X01 Remainingcapacityalarm()
123
0X02 Remainingtimealarm()
123
0X03 Batterymode()
123
0X04 Atrate()
124
0X05 Atratetimetofull()
125
0X06 Atratetimetoempty()
125
0X07 Atrateok()
125
0X08 Temperature()
125
0X09 Voltage()
126
0X0A Current()
126
0X0B Averagecurrent()
126
0X0C Maxerror()
126
0X0D Relativestateofcharge()
127
0X0E Absolutestateofcharge()
127
0X0F Remainingcapacity()
127
0X10 Fullchargecapacity()
127
0X11 Runtimetoempty()
128
0X12 Averagetimetoempty()
128
0X13 Averagetimetofull()
128
0X14 Chargingcurrent()
128
0X15 Chargingvoltage()
128
0X16 Batterystatus()
129
0X17 Cyclecount()
130
0X18 Designcapacity()
130
0X19 Designvoltage()
131
0X1A Specificationinfo()
131
0X1B Manufacturerdate()
132
0X1C Serialnumber()
132
0X20 Manufacturername()
132
0X21 Devicename()
133
0X22 Devicechemistry()
133
0X23 Manufacturerdata()/Calibrationdata()
133
0X2B Hostfetcontrol
134
0X2C Gpiostatus
134
0X2D Gpiocontrol
135
0X2E Vauxvoltage()
136
0X2F Authenticate()/Manufacturerinput()
136
0X30
136
0X4C Dynamicpower()
137
0X4D Extavecellvoltage()
137
0X4E Pendingedv()
137
0X4F Stateofhealth (SOH)
138
0X50 Safetyalert
138
0X51 Safetystatus
138
0X52 Pfalert
138
0X53 Pfstatus
138
0X54 Operationstatus
138
0X55 Chargingstatus
139
0X56 Gaugingstatus
139
0X57 Manufacturingstatus
139
0X58 Afestatus
139
0X59 Afeconfig
139
0X5A Afevcx
139
0X5B Afedata
140
0X60 Lifetime Data Block 1
140
0X61 Lifetime Data Block 2
140
0X62 Lifetime Data Block 3
140
0X63 Lifetime Data Block 4
140
0X64 Lifetime Data Block 5
140
0X65 Lifetime Data Block 6
141
0X66 Lifetime Data Block 7
141
0X70 Manufacturerinfo
141
0X71 Dastatus1
141
0X72 Dastatus2
141
0X80 CUV Snapshot
141
0X81 COV Snapshot
142
18 Data Flash Access and Format
143
Data Flash Access
143
Minimum Voltage
143
Data Formats
143
Unsigned Integer (U)
143
Integer (I)
143
Floating Point (F)
144
Hex (H)
144
String (S)
144
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Texas Instruments bq78350-R1 Specifications
General
Brand
Texas Instruments
Model
bq78350-R1
Category
Controller
Language
English
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