bq2011K
Therefore:
3. Nominal Available Charge (NAC):
1800mAh 0.002Ω = 3.6mVh
NAC counts up during charge to a maximum value
of LMD and down during discharge and self dis-
charge to 0. NAC is reset to 0 on initialization and
on the first valid charge following discharge to EDV.
To prevent overstatement of charge during periods
of overcharge, NAC stops incrementing when NAC
= LMD.
*
Select:
PFC = 35840 counts or 3.39mVh
SPFC = Z (float)
PROG1, PROG2 = H or Z
PROG3 = L
PROG4 = H or Z
Note: NAC is set to the value in LMD when
PROG4 is pulled low during a reset.
The initial full battery capacity is 3.39mVh (1695mAh) un-
til the bq2011K “learns” a new capacity with a qualified
discharge from full to EDV.
Table 1. bq2011K Programmed Full Count mVh Selections
Programmed
Full Count (PFC)
Display
Mode
mVh
Scale
SPFC
PROG1
PROG2
PROG3
1
40192
32256
28928
25856
35840
23296
3.81
H
H or Z
H or Z
H or Z
10560
1
3.05
2.74
2.45
3.39
2.21
Z
L
H
Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
H or Z
10560
1
H or Z
10560
Absolute
1
L
L
L
10560
1
10560
1
L
10560
Table 2. Programmed Self-Discharge
PROG4
NAC Reset Value
NAC = 0
Self-Discharge
Enabled
H or Z
L
NAC = PFC
Disabled
6
TI [ TEXAS INSTRUMENTS ]
