BQ2060SS Datasheet, PDF (31/59 Pages) Texas Instruments – SBS V1.1-COMPLIANT GAS GAUGE IC

bq2060
www.ti.com
SLUS035E – JANUARY 2000 – REVISED OCTOBER 2005
Unsigned integer—maximum charger output current in mA.
Units: mA
Range: 0 to 65,535 mA
Granularity: 1 mA
Accuracy: not applicable
Invalid Data Indication: 65,535 indicates that a charger should operate as a voltage source outside
its maximum regulated current range.
ChargingVoltage() (0x15); [0x15]
DESCRIPTION
Returns the desired charging voltage in mV.
PURPOSE
The ChargingVoltage() function sets the maximum charge voltage of the battery. The
ChargingVoltage() value should be used in combination with the ChargingCurrent() value to set the
charger’s operating point. Together, these functions permit the bq2060 to dynamically control the
charging profile (current/ voltage) of the battery. The charger may be operated as a
constant-current source above its maximum regulated voltage range by returning a
ChargingVoltage() value of 65,535.
SMBus PROTOCOL WriteWord
OUTPUT
Unsigned integer—charger output voltage in mV.
Units: mA
Range: 0 to 65,535 mA
Granularity: 1 mA
Accuracy: not applicable
Invalid Data Indication: 65,535 indicates that a charger should operate as a current source outside
its maximum regulated current range.
BatteryStatus()(0x16); [0x16]
DESCRIPTION
Returns the bq2060’s status word (flags). Some of the BatteryStatus() flags
(REMAINING_CAPACITY_ ALARM and REMAINING_TIME_ALARM) are calculated based on
either current or power depending on the setting of the BatteryMode()’s CAPACITY_ MODE bit.
This is important because use of the wrong calculation mode may result in an inaccurate alarm.
PURPOSE
The BatteryStatus() function is used by the power management system to get alarm and status bits,
as well as error codes from the bq2060. This is basically the same information broadcast to both
the SMBus Host and the Smart Battery Charger by the AlarmWarning() function except that the
AlarmWarning() function sets the Error Code bits all high before sending the data.
SMBus PROTOCOL ReadWord
OUTPUT:
Unsigned integer—Status Register with alarm conditions bit mapped as follows:
31