Data Sheet

MAX17043/MAX17044
Compact, Low-Cost 1S/2S Fuel Gauges
with Low-Battery Alert
4 _______________________________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
QUIESCENT CURRENT vs. SUPPLY VOLTAGE
MAX17043/4 toc01
V
DD
(V)
QUIESCENT CURRENT (µA)
32451
20
40
60
80
100
0
0
T
A
= +70
°
C
T
A
= +25
°
C
T
A
= -20
°
C
SIMPLE C/2 RATE CYCLES
SOC ACCURACY
MAX17043/4 toc02
TIME (h)
STATE OF CHARGE (%)
SOC ERROR (%)
12106842
10
20
30
40
50
60
70
80
90
100
0
-8
-6
-4
-2
0
2
4
6
8
10
-10
0
ERROR (%)
MAX17043/
MAX17044 SOC:
DASHED LINE
REFERENCE SOC:
SOLID LINE
C/2 RATE ZIGZAG PATTERN
SOC ACCURACY
MAX17043/4 toc05
TIME (hr)
STATE OF CHARGE (%)
SOC ERROR (%)
1281622204
10
20
30
40
50
60
70
80
90
100
0
-8
-6
-4
-2
0
2
4
6
8
10
-10
0
ERROR (%)
MAX17043/MAX17044 SOC:
DASHED LINE
REFERENCE SOC:
SOLID LINE
SIMPLE C/4 RATE CYCLES
SOC ACCURACY
MAX17043/4 toc03
TIME (hr)
STATE OF CHARGE (%)
SOC ERROR (%)
121068 1816 22201442
10
20
30
40
50
60
70
80
90
100
0
-8
-6
-4
-2
0
2
4
6
8
10
-10
0
ERROR (%)
MAX17043/
MAX17044 SOC:
DASHED LINE
REFERENCE SOC:
SOLID LINE
MAX17043 VOLTAGE ADC ERROR
vs. TEMPERATURE
MAX17043/4 toc04
TEMPERATURE (°C)
VOLTAGE ADC ERROR (mV)
3510 60 85-15
-15
-10
-5
0
5
10
15
20
-20
-40
V
CELL
= 3.0V
V
CELL
= 4.2V
V
CELL
= 3.6V