PS810 datasheet(33/46 Pages) MICROCHIP

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DS21904C-page 33

PS810

ConfigEOCD

bitmap

10011111

Bit coded as follows:

Bit

Function

Limit remaining capacity to FCC

6Unused

Trigger EOC on average current

Trigger EOC on taper current

Disallow multiple EODs

Limit capacity to EODCap until EOD

Set capacity to residual capacity at VEOD

Learn FCC at VEOD

COTempE

signed word

21198

Correction offset for external temperature.

COTempI

signed word

21198

Correction offset for internal temperature.

Cycles

integer

Battery data register for CycleCount. Cycles is updated to

keep track of the total usage of the battery. Cycles is

increased whenever an amount of charge has been

removed from the battery, equivalent to the full capacity.

DesignCapacity

mAh

2200

Battery data value for DesignCapacity. This is the first capacity

loaded into the FullChargeCapacity upon initial power-up.

DevID

hex word

AAAA

Battery data value for DeviceID (2-byte hex word).

EOCCurAvg

200

EOC trigger for pulse charging. If the average current during

charging has dropped below the threshold for a pass count

equal to EOCRecheck, the End-Of-Charge state will be

reached.

EOCRecheck

op cycles

Number of checks before EOC trigger. The End-Of-Charge

conditions must remain for at least this number of periods

before being considered true.

EOCVolt

4150

EOC trigger cell voltage. When the cell reaches this voltage,

the PS810 will start monitoring the current to determine

when the battery is full. When the current is in the proper

range and the cell voltage is greater than EOCVolt, then the

FULLY_CHARGED bit in BatteryStatus will be set.

EODCap

mAh

100

Reserve remaining capacity at EOD.

EODRecheck

op cycles

Recheck period for EOD. Voltage must be below VEOD for

this many measurement periods.

FDBVersion

integer

—

Flash data block version.

FLAGS1

bitmap

00100000

Bit coded as follows:

Bit

Function

Unused

Int/Ext temperature

Disable Sleep in main Idle mode

Unused

Disable safety GPIO

Unused

FullCapacity

mAh

2200

Learned value of battery capacity. Used for battery data value

of FullChargeCapacity. This is a learned parameter which is

the equivalent of all charge counted from fully charged to fully

discharged, including self-discharge and error terms. This is

reset after a learning cycle and used for remaining capacity

and relative State-Of-Charge calculations.

TABLE 9-1:

ALPHABETICAL LISTING OF PARAMETERS (CONTINUED)

Parameter

Name

# Bytes

Units

Typical

Value

Operational Description

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