PS810 datasheet(34/46 Pages) MICROCHIP

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PS810

DS21904C-page 34

HighTempAl

coded byte

200

OVER_TEMP_ALARM bit threshold,

Coded Value = (°Celsius * 10 + 200)/4.

MFGDate

coded hex

word

0x3246

Battery data value for ManufactureDate. The date of

manufacture of the battery pack can be programmed

here and retrieved with the battery data

ManufactureDate command,

Coding: Date = (Year-1980) x 512 + Month x 32 + Day.

MFGID

hex word

–

Value for ManufacturerID (2-byte hex word).

NChangeState

op cycles

State change delay filter. Delays the change between

“charge increasing” state and “charge decreasing” state

based on current direction. To avoid problems with current

spikes in opposite directions, a delay filter is built in to

control when to change from charging status to discharging

status. The current must change directions and stay in the

new direction for NChangeState periods before the status is

changed and capacity is increased or decreased as a result

of the new current direction.

NullCurr

A zero zone control is built into the PS810 so that any

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.

OscCal

integer

206

RC oscillator trimming.

PowerModes

bitmap

b00000101

bit 4:

= Enable Bus Inactive Low-Power mode

= Disable Bus Inactive Low-Power mode

bit 3:

= Use Ultra Low-Power mode as Bus Inactive Low-Power

mode (no self-discharge calculations)

= Use Low-Power mode with self-discharge calculations

as Bus Inactive Low-Power mode

bit 2:

= Require NullCurr for Bus Inactive Low-Power mode

and Low-Voltage Sleep mode

=No NullCurr requirement for Sleep modes

bit 1:

= Use Ultra Low-Power mode as Low-Voltage Sleep

mode

= Use Low-Power mode as Low-Voltage Sleep mode

bit 0:

= Set remcap to zero when entering Low-Voltage Sleep

mode

= Do not change remcap when entering Low-Voltage

Sleep mode

PW1

integer

–

First password for the battery pack lock.

PW2

integer

–

Second password for the battery pack lock.

PwrConsumption

1/256 mA

Current consumption of the battery module. This is the

average current that the battery module typically draws from

the battery (255 = 1 mA).

PwrConsumSleep

1/256 mA

Current consumption of battery module when in Sleep

mode.

RefCal

integer

Reference voltage calibration factor.

TABLE 9-1:

ALPHABETICAL LISTING OF PARAMETERS (CONTINUED)

Parameter

Name

# Bytes

Units

Typical

Value

Operational Description

PS810 Datasheet(PDF) 34 Page - Microchip Technology

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