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| BQ2084-V140_14 Datasheet, PDF (23/64 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312 | |||
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bq2084-V140
www.ti.com
SLUS664B â JULY 2005 â REVISED AUGUST 2006
CIM
The CIM bit indicates that a severe cell imbalance occurred during charging, which if enabled by PF Config,
would cause the SAFE output to activate.
0 All cells are within the Cell Imbalance Threshold (default)
1 There is a severe cell imbalance
FETF
The FETF bit indicates a FET or FET driver failure occurred, which if enabled by PF Config would cause the
SAFE output to activate.
0 The FETs are operating normally (default)
1 The FETs or FET drivers have a fault
PFIN
The PFIN bit is used to indicate that the output of the 2nd level protector has activated.
0 The PFIN input is high (default)
1 The PFIN input drive and held low by 2nd level protector output
FPP
The FPP bit is used to indicate that current has been detected when the fuse has been set to be blown.
0 Current not detected with fuse blown
1 Current detected with fuse blown
Permanent Failure Configuration (PF Config)
PF Config DF 0x11f contains the enable/disable configuration that determines if the SAFE output is activated
and the PF Flag set for each possible failure mode.
b7
b6
b5
b4
b3
b2
b1
b0
-
XPFIN
XFETF
XCIM
XAFE
XSOTD
XSOTC
XSOV
XSOV
The XSOV bit enables or disables the activation of SAFE and the setting of the PF Flag when PF Status SOV
is set.
0 Activation disabled (default)
1 Activation enabled
XSOTC
The XSOTC bit enables or disables the activation of SAFE and the setting of the PF Flag when PF Status
SOTC is set.
0 Activation disabled (default)
1 Activation enabled
XSOTD
The XSOTD bit enables or disables the activation of SAFE and the setting of the PF Flag when PF Status
SOTD is set.
0 Activation disabled (default)
1 Activation enabled
XAFE
The XAFE bit enables or disables the activation of SAFE and the setting of the PF Flag when PF Status AFE is
set. Bit 13 of Miscellaneous Config DF 0x2a also needs to be set for activation.
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