BQ2060A_15 Datasheet, PDF (33/61 Pages) Texas Instruments – SBS v1.1-Compliant Gas Gauge IC

bq2060A
www.ti.com
SLUS500D – OCTOBER 2001 – REVISED OCTOBER 2011
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
operating point. Together, these functions permit the bq2060A 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: Write Word
Output:
Unsigned integer—charger output voltage in mV.
• Units: mV
• Range: 0 mV to 65,535 mV
• Granularity: 1 mV
• Accuracy: not applicable
• Invalid Data Indication: 65,535 indicates that the charger should operate as a current source outside its
maximum regulated voltage range.
BatteryStatus()(0x16); [0x16]
Description: Returns the bq2060 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() 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 bq2060A. 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: Read Word
Input/Output:
Unsigned integer—Status Register with alarm conditions bit-mapped as follows:
0x8000
0x4000
0x2000
0x1000
0x0800
0x0400
0x0200
0x0100
0x0080
0x0040
0x0020
0x0010
ALARM BITS
OVER_CHARGED_ALARM
TERMINATE_CHARGE_ALARM
Reserved
OVER_TEMP_ALARM
TERMINATE_DISCHARGE_ALARM
Reserved
REMAINING_CAPACITY_ALARM
REMAINING_TIME_ALARM
STATUS BITS
INITIALIZED
DISCHARGING
FULLY_CHARGED
FULLY_DISCHARGED
0x0007
0x0006
0x0005
Copyright © 2001–2011, Texas Instruments Incorporated
ERROR CODES
Unknown Error
BadSize
Overflow/Underflow
Product Folder Link(s): bq2060A
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