Datasheet

Example: Selecting a PFC Value
Given:
Sense resistor = 0.0075Ω
Number of cells = 14
Capacity = 5000mAh, NiCd cells
Current range = 1A to 30A
Relative display mode with 4 second timer
Self-discharge = 1% per day
Trickle charge compensation = 0.85
Typical offset = -75µV
Voltage drop across sense resistor = 5mV to 225 mV
Therefore:
5000mAh
*
0.0075Ω = 37.5mVh
Select:
PFC = 44,800 counts or 35mVh
PROG
1
, PROG
2
=Z,L
PROG
3
=Z
PROG
4
=H
PROG
5
=L
PROG
6
=Z
6
bq2013H
Programmed
Full Count (PFC) mVh Scale PROG
1
PROG
2
27136 84.8
1
320
HH
24064 75.2
1
320
HZ
41472 64.8
1
640
HL
35072 54.8
1
640
ZH
28672 44.8
1
640
ZZ
44800 35
1
1280
ZL
30720 24
1
1280
LH
38400 15
1
2560
LZ
12800 5
1
2560
LL
Table 2. bq2013H Programmed Full Count mVh Selections
PROG
3
Self-Discharge
H 1.6% per day
Z 0.8% per day
L 0.2% per day
Table 3. Programmed Self-Discharge