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PS810 Scheda tecnica(PDF) 9 Page - Microchip Technology

Il numero della parte PS810
Spiegazioni elettronici  Li Ion Single Cell Fuel Gauge
PDF  46 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PS810 Scheda tecnica(HTML) 9 Page - Microchip Technology

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© 2006 Microchip Technology Inc.
DS21904C-page 9
PS810
TABLE 3-1:
A/D OPERATION PARAMETERS
Parameter
Name
# of
Bytes
Units
Typical
Value
Operational Description
NullCurr
1
mA
3
Zero zone control is built into the PS810 so that electrical noise
doesn’t actually drain the gas gauge, when in fact the current is
zero. For this reason, current less than NullCurr mA in either
direction will be measured as zero.
CFCurr
2
unsigned
word
4200
Correction Factor for Current. Adjusts the scaling of the sense
resistor current measurements.
COCurr
1
signed
byte
0
Correction Offset for Current. This is the value the A/D reads
when zero current is flowing through the sense resistor.
COD
1
signed
byte
0
Correction Offset Deviation. Offset value for the auto-zero
calibration of the current readings.
AOMInterval
1
op cycles
60
Interval of time between auto-offset calibrations.
AVGIScale
1
coded
b00100000 Time period over which current is averaged to calculate
average current: IAVG = IAVG + (I – IAVG)/(AVGIScale * 2).
Note: Only Most Significant set bit is used, others are ignored.
CFVoltage
2
integer
2250
Correction Factor for Pack Voltage. Adjusts the scaling of the
VC1 pin measurement.
CFCoin
2
integer
2250
Correction Factor for Coin Cell Measurement. Adjusts the
scaling of the VCOIN pin measurement.
CFTempE
2
integer
326
Correction Factor for Temperature. Adjusts the scaling of
temperature measured across an external thermistor at the NTC
input pin.
CFTempI
2
integer
2038
Correction Factor for Temperature. Adjusts the scaling of
temperature measured from the internal temperature sensor.
COTempI
2
signed
word
21298
Correction Offset for Temperature. Used for temperature
measurement using internal temperature sensor.



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