Datasheet

FUNCTION_CONTROL: Function Control Register, [Cell (9, 10) Balance Register]
bq77PL900
SLUS844B – JUNE 2008 – REVISED JANUARY 2009 ...................................................................................................................................................... www.ti.com
FUNCTION CONTROL REGISTER (0x03)
7 6 5 4 3 2 1 0
CBAL10 CBAL9 TOUT BAT PACK IACAL IAEN VAEN
The FUNCTION_CONTROL register controls some features of the bq77PL900.
FUNCTION_ CONTROL b0 (VAEN): This bit controls the internal cell-voltage amplifier.
0 = Disable cell-voltage amplifier (default).
1 = Enable cell-voltage amplifier.
FUNCTION _CONTROL b1 (IAEN): This bit controls the internal current-monitor amplifier.
0 = Disable current-monitor amplifier (default).
1 = Enable current-monitor amplifier.
FUNCTION_CONTROL b2 (IACAL): This bit controls the internal current-monitor amplifier offset-voltage output.
0 = Disable offset voltage output (default).
1 = Enable offset voltage output.
FUNCTION_CONTROL b3 (PACK): When VAEN = 1, PACK input is divided by 50 and presented on VCELL
0 = Disable pack total voltage output (default).
1 = Enable pack total voltage output.
FUNCTION_ CONTROL b4 (BAT): When VAEN = 1, BAT input is divided by 50 and presented on VCELL.
0 = Disable pack total voltage output (default).
1 = Enable pack total voltage output.
This bit priority is higher than PACK(b3).
FUNCTION _CONTROL b5 (TOUT): This bit controls the power to the thermistor.
0 = Thermistor power is off in host-control mode (default).
1 = Thermistor power is on in host-control mode.
FUNCTION _CONTROL b7 – b6 (CELL10 – 9): This bit enables or disables the cell 9 and cell 10 balance charge
bypass path
0 = Disable bottom series cell 9 or cell 10 balance charge bypass path (default).
1 = Enable bottom series cell 9 or cell 10 balance charge bypass path.
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