BQ28550-R1 Datasheet, PDF (28/42 Pages) Texas Instruments – Single Cell Li-Ion Battery Gas Gauge

Not Recommended for New Designs
bq28550-R1
SLUSAS4A – OCTOBER 2012 – REVISED SEPTEMBER 2014
CNTL Function
SET_FULLSLEEP
Table 9. Control() Subcommands
CNTL Data
Sealed Access
0x0010
Yes
SET_HIBERNATE
0x0011
Yes
CLEAR_HIBERNATE
0x0012
Yes
SET_SHUTDOWN
0x0013
Yes
CLEAR_SHUTDOWN
0x0014
Yes
HOST_DISCONNECT
0x0017
Yes
HOST_Enable
0x0018
Yes
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Description
Set the [FullSleep] bit in Control
Status register to 1
Forces CONTROL_STATUS
[HIBERNATE] to 1
Forces CONTROL_STATUS
[HIBERNATE] to 0
Forces CONTROL_STATUS
[SHUTDOWN] to 1
Forces CONTROL_STATUS
[SHUTDOWN] to 0
Forces the DOUT pin low to
disable discharge.
Forces the DOUT pin high to
enable discharge.
7.6.6.4 CONTROL STATUS: 0x0000
Instructs the gas gauge to return status information to Control Status 0x00/0x01. The status word should include
the following information.
High Byte
Low Byte
Bit 7
RSVD
SHUTRQ
Table 10. CONTROL STATUS Flags
Bit 6
RSVD
HIBERNATE
Bit 5
RSVD
FULLSLEEP
Bit 4
RSVD
SLEEP
Bit 3
CCA
DSGOFFREQ
Bit 2
BCA
RSVD
Bit 1
RSVD
CHG
Bit 0
RSVD
DSG
Low Byte
Bit 0 = DSG FET Status, 1 = Discharging allowed (DSG FET ON), 0 = Discharging NOT allowed ( DSG FET
Turned OFF).
Bit 1 = CHG FET Status, 1 = Charging allowed (CHG FET ON), 0 = Charging NOT allowed action to be taken by
Host MCU.
Bit 2 = RSVD (Reserved)
Bit 3 = DSGOFFREQ, DSG FET OFF requested
Bit 4 = SLEEP, Status bit indicating the device is in SLEEP mode. True when set.
Bit 5 = FULLSLEEP, Status bit indicating the device is in FULLSLEEP mode. True when set. The state can be
detected by monitoring the power used by the device because any communication will automatically clear it.
Bit 6 = HIBERNATE, Status bit indicating a request for entry into HIBERNATE from SLEEP mode has been
issued. True when set. Default is 0. Control bit when set will put the device into the lower power state of SLEEP
mode. It is not possible to monitor this bit. Bit 7 = SHUTRQ. Status bit indicating the gas gauge is enabled to
enter SHUTDOWN mode. True when set. Default is 0.
Bit 7 = SHUTRQ, 1 = SHUTDOWN requested
High Byte
Bit 0, 1 = RSVD (Reserved)
Bit 2 = BCA = Status bit indicating the device Board Calibration routine is active. Active when set.
Bit 3 = CCA = Status bit indicating the device Coulomb Counter Calibration routine is active. Active when set.
Bit 4, 5, 6, 7 = RSVD (Reserved)
The following MAC commands are also available.
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