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Battery Temperature AD Calibration
PC
With
"Dongle"
1. Connect the PS-2 so that 1.8 V is supplied to BATT-Temp.
2. Monitor the average value of the tbat ADC reading.
If this average value is outside the range of 3798 to 3986, then the unit has failed.
3. Enter the average tbat ADC value into the TBAT ADJ Excel sheet in the tbat = 1.8V field.
4. Change the power supply PS-2 voltage from 1.8 V to 0 V.
5. Monitor the average value of the tbat ADC reading.
If this average value is outside the range of 2028 to 2069, then the unit has failed.
6. Enter the average tbat ADC value into the TBAT ADJ Excel sheet in the tbat = 0 V field. The recorded VBAT/TBAT value
will be used to automatically calculate the VBAT_ GAIN /OFFSET and TBAT_GAIN/OFFSET. It will then be stored to the
eep file of the BATT format Excel sheet.
TBAT = 1.8
3951
OK
Current AD (LOAD) Calibration
PC
With
Jig Data Cable
"Dongle"
Note: For this testing PS-2 must be able to sink current. PS-1 also need to have an extremely accurate current sourcing
capability. Agilent HP66311B, HP66321A, Kikusui PLZ70UA and Bipolar power supplies or equivalent are recommended
for this calibration.
PCB Repair Jig
Jig Data Cable
for Calibration
TBAT = 0.0
Gain
2039
64
OK
OK
PCB Repair Jig
TP909 (VBA)
T
for Confirmation
Offset
adc value
-2039
OK
T
PS-2 (Bipolar)
PS-1 (DC Power supply)
800 mA/200 mA
– 9-7 –
PS-2 (DC Power supply)
1.8 V & 0
PS-1 (DC Power supply)
3.7 V
cal. value
(1920)
3.6 V
4.2V
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