BQ34Z100 Datasheet, PDF (37/50 Pages) Texas Instruments – Wide Range Fuel Gauge with Impedance Track™ Technology

bq34z100
www.ti.com
SLUSAU1 – MAY 2012
AveragePower(): 0x26/0x27
This read-word function returns an unsigned integer value of the average power of the current discharge. A value
of 0 indicates that the battery is not being discharged. The value is reported in units of mW.
TimeToEmptyAtConstantPower(): 0x28/0x29
This read-only function returns an unsigned integer value of the predicted remaining operating time if the battery
is discharged at the AveragePower() value in minutes. A value of 65535 indicates AveragePower() = 0. The gas
gauge automatically updates TimeToEmptyatContantPower() based on the AveragePower() value every 1s.
InternalTemp(): 0x2a/0x2b
This read-only function returns an unsigned integer value of the measured internal temperature of the device in
units of 0.1K measured by the fuel gauge.
CycleCount(): 0x2c/0x2d
This read-only function returns an unsigned integer value of the number of cycles the battery has experienced
with a range of 0 to 65535. One cycle occurs when accumulated discharge ≥ CC Threshold.
StateOfHealth(): 0x2e/0x2f
This read-only function returns an unsigned integer value, expressed as a percentage of the ratio of predicted
FCC(25°C, SOH current rate) over the DesignCapacity(). The FCC(25°C, SOH current rate) is the calculated full
charge capacity at 25°C and the SOH current rate which is specified in the data flash (State of Health Load). The
range of the returned SOH percentage is 0x00 to 0x64, indicating 0% to 100% correspondingly.
ChargeVoltage(): 0x30/0x31
This unsigned integer indicates the recommended charging voltage.
ChargeCurrent(): 0x32/0x33
This signed integer indicates the recommended charging current.
PassedCharge(): 0x34/0x35
This signed integer indicates the amount of charge passed through the sense resistor since the last IT simulation
in mAh.
DOD0(): 0x36/0x37
This unsigned integer indicates the depth of discharge during the most recent OCV reading.
SelfDischargeCurrent(): 0x38/0x39
This read-only command pair returns a signed integer value that estimates the battery self discharge current.
PackConfiguration(): 0x3a/0x3b
This Read-Word function allows the host to read the configuration of selected features of the bq34z100
pertaining to various features. Refer to PACK CONFIGURATION REGISTER.
DesignCapacity(): 0x3c/0x3d
SEALED and UNSEALED Access: This command returns theoretical or nominal capacity of a new pack. The
value is stored in Design Capacity and is expressed in mAh.
DataFlashClass(): 0x3e
UNSEALED Access: This command sets the data flash class to be accessed. The class to be accessed should
be entered in hexadecimal.
SEALED Access: This command is not available in SEALED mode.
Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): bq34z100
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