BQ33100_15 Datasheet, PDF (38/67 Pages) Texas Instruments – Super Capacitor Manager

bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
SCD
1= AFE short circuit during discharge fault
8.5.2.2.12.4 OperationStatus (0x54)
This read-word function returns the current operation status.
SBS
CMD
0x54
MODE
R
NAME
OperationStatus
Table 58. OperationStatus
FORMAT
hex
SIZE IN
BYTES
2
MIN VALUE
0x0000
MAX VALUE
0xf7f7
Figure 9. OperationStatus Registers
15
14
13
12
11
10
RSVD
DSG
SS
FC
LTE
RSVD
7
6
5
4
3
2
LDTO
LCTO
LPASS
CL
RSVD
CFET
DEFAULT
VALUE
—
9
CHGOR
1
RSVD
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UNIT
8
CB
0
RSVD
DSG
SS
FC
LTE
CHGOR
CB
CL
LPASS
LCTO
LDTO
Discharging
0 = bq33100 is in charging mode
1 = bq33100 is in discharging mode, relaxation mode, or valid charge termination has
occurred
1 = Sealed security mode
1 = Fully Charged
1 = Lifetime data and CHG FET operation enabled
1 = Charge Override Enabled
1 = Capacitor voltage balancing in progress
1 = Capacitance learning in progress
1 = Learning complete and successful
1 = Learning charging phase time out
1 = Learning discharging phase time out
8.5.2.2.12.5 SystemVoltage (0x5a)
This read-word function returns an unsigned integer value of the voltage at VCC (pin 24) in mV with a range of 0
to 20000 mV.
SBS
CMD
0x5a
MODE
R
NAME
SystemVoltage
Table 59. SystemVoltage
FORMAT
Unsigned
Integer
SIZE IN
BYTES
2
MIN VALUE
0
MAX VALUE
20000
DEFAULT
VALUE
—
UNIT
mV
8.5.2.2.12.6 UnSealKey(0x60)
This read- or write-block command allows the user to change the Unseal key for the Sealed-to-Unsealed
security-state transition. This function is only available when the bq33100 is in the Unsealed mode, indicated by
a cleared [SS] flag.
The order of the bytes, when entered in ManufacturerAccess, is the reverse of what is written to or read from the
part. For example, if the 1st and 2nd word of the UnSealKey block read returns 0x1234 and 0x5678, then in
ManufacturerAccess, 0x3412 and 0x7856 must be entered to unseal the part.
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