BQ29311_15 Datasheet, PDF (14/24 Pages) Texas Instruments – FOUR-CELL LITHIUM-ION

Not Recommended for New Designs
bq29311
SLUS487D − DECEMBER 2001 − REVISED NOVEMBER 2003
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CONTROL REGISTER
7
SVDOFF
6
TOUT
5
LEDEN
CONTROL REGISTER (0X01)
4
3
VMOFF
PCHG
2
CHG
1
DSG
0
OCL
The CONTROL register controls the outputs of the bq29311 and can be used to clear certain states set by any OC, SC
or brownout condition. The OCL latch must be cleared before the STATUS register is read to clear the register.
CONTROL b0 (OCL): This bit releases the overcurrent latch when toggled from 0 to 1 back to 0 (default = 0) after the latch
has been set by any OC or SC condition.
CONTROL b1 (DSG): This bit controls the external discharge FET.
0 = discharge FET is off and is controlled by the system host (default)
1 = discharge FET is on and the bq29311 is in normal operating mode
CONTROL b2 (CHG): This bit controls the external charge FET.
0 = charge FET is off and is controlled by the system host (default)
1 = charge FET is on and the bq29311 is in normal operating mode.
CONTROL b3 (PCHG): This bit controls the external precharge FET.
0 = precharge FET is on and controlled by the system host for enabling a charge path prior to turning on the
charge FET (default)
1 = precharge FET is off.
CONTROL b4 (VMOFF): This bit enables or disables the voltage monitoring translation function and cell balance
discharge.
0 = enables voltage monitoring (default)
1 = disables voltage monitoring
CONTROL b5 (LEDEN): This bit enables or disables the LED driver function
0 = disables LED drive function (default)
1 = enables LED drive function
CONTROL b6 (TOUT): This bit controls the V_CC power to the thermistor.
0 = thermistor power is off (default)
1 = thermistor power is on
CONTROL b7 (SDVOFF): This bit enables or disables the shutdown monitor function.
0 = shutdown monitor enabled (default)
1 = shutdown monitor disabled
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