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| BQ27546-G1 Datasheet, PDF (23/38 Pages) Texas Instruments – nullSingle-Cell Li-Ion Battery Fuel Gauge | |||
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bq27546-G1
SLUSC53A â MAY 2015 â REVISED DECEMBER 2015
9.6.2 Pack Configuration B Register
Some bq27546-G1 pins are configured via the Pack Configuration B data flash register, as indicated in
Table 10. This register is programmed/read via the methods described in the bq27546-G1 Technical Reference
Manual (SLUUB74). The register is located at Subclass = 64, offset = 2.
Default =
Bit 7
ChgDoD
EoC
1
Table 10. Pack Configuration B Bit Definition
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
SE_TDD
VconsEN SE_ISD
RSVD
LFPRelax
0
1
0
0
1
0x67
Bit 1
DoDWT
1
Bit 0
FConvEn
1
ChgDoDEoC = Enable DoD at EoC recalculation during charging only. True when set. The default setting is recommended.
SE_TDD = Enable Tab Disconnection Detection. True when set.
VconsEN = Enable voltage consistency check. True when set. The default setting is recommended.
SE_ISD = Enable Internal Short Detection. True when set.
RSVD = Reserved. Must be 0.
LFPRelax = Enable LiFePO4 long relaxation mode. True when set.
DoDWT =
Enable DoD weighting feature of gauging algorithm. This feature can improve accuracy during relaxation in a
flat portion of the voltage profile, especially when using LiFePO4 chemistry. True when set.
FConvEn = Enable fast convergence algorithm. The default setting is recommended.
9.6.3 Pack Configuration C Register
Some bq27546-G1 algorithm settings are configured via the Pack Configuration C data flash register, as
indicated in Table 11. This register is programmed/read via the methods described in the bq27546-G1 Technical
Reference Manual (SLUUB74). The register is located at Subclass = 64, offset = 3.
Default =
Bit 7
RSVD
0
Table 11. Pack Configuration C Bit Definition
Bit 6
RSVD
0
Bit 5
RelaxRCJumpOK
0
Bit 4
Bit 3
SmoothEn
SleepWk
Chg
1
1
0x18
Bit 2
RSVD
0
Bit 1
RSVD
0
Bit 0
RSVD
0
RSVD = Reserved. Must be 0.
RelaxRCJumpOK =
Allow SOC to change due to temperature change during relaxation when SOC smoothing algorithm is enabled.
True when set.
SmoothEn = Enable SOC smoothing algorithm. True when set.
SleepWkChg = Enables compensation for the passed charge missed when waking from SLEEP mode.
Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: bq27546-G1
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