=
-
+
TS x
old
TSx offset
TEMP
TSx TSx offset
Calibration
82
SLUUBD3D – September 2015 – Revised September 2018
Copyright © 2015–2018, Texas Instruments Incorporated
Manufacture Production
12.2.7 Current Calibration Data Flash
Class
Subclass
Name
Format
Length in
Bytes
Min
Max
Default
Unit
Calibration
Current
CC Gain
Float
4
1.00E–001
9.00E+000
8.4381
m
Ω
Calibration
Current
Capacity Gain
Float
4
2.98E+004
2.69E+07
2516761.36
—
Calibration
Current Offset
CC Offset
Integer
2
–32768
32767
0
—
Calibration
Current Offset
Coulomb Counter
Offset Samples
Unsigned
Integer
2
0
65535
64
—
Calibration
Current
Deadband
Deadband
Unsigned
Integer
1
0
255
3
mA
Calibration
Current
Deadband
Coulomb Counter
Deadband
Unsigned
Integer
1
0
255
38
264 nV
12.2.8 Temperature Calibration
12.2.8.1 TS1–TS2–TS3 Calibration
1. Apply a known temperature in 0.1°C, and ensure that temperature TEMP
TSx
is applied to the thermistor
connected to the TSx pin. "TSx" refers to TS1, TS2, or TS3, whichever is applicable.
2. Send 0xF082 to
ManufacturerAccess()
to enable factory calibrated Temperature output on
ManufacturerData()
.
3. Poll
ManufacturerData()
until ZZ increments by 2 before reading data.
4. Read the factory calibrated conversion readings of Temperature from
ManufacturerData()
:
•
FCAL
TS1
= HHhh of
ManufacturerData()
•
FCAL
TS2
= IIii of
ManufacturerData()
•
FCAL
TS3
= JJjj of
ManufacturerData()
5. Read the TSx offset
old
from
External × Temp Offset
, where × is 1, 2 , or 3.
6. Re-check the temperature reading. If the reading is not accurate, repeat the steps.
7. Calculate the temperature offset:
where × is 1, 2, or 3.
8. Write the new
External × Temp Offset
(where × is 1, 2, or 3) value to data flash.
9. Re-check the temperature reading. If the reading is not accurate, repeat the steps.
12.2.9 Temperature Calibration Data Flash
Class
Subclass
Name
Type
Length in
Bytes
Min
Max
Default
Unit
Calibration
Temperature
External 1 Temp
Offset
Integer
1
–128
127
0
0.1 °C
Calibration
Temperature
External 2 Temp
Offset
Integer
1
–128
127
0
0.1 °C
Calibration
Temperature
External 3 Temp
Offset
Integer
1
–128
127
0
0.1 °C
Calibration
Temperature
Gauge Internal
Temp Offset
Integer
1
–128
127
0
0.1 °C