NiCd/NiMH Battery
Fast-Charge Controllers
MAX712/MAX713
____________________________Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
MAX713
NiCd BATTERY-CHARGING
CHARACTERISTICS AT C RATE
MAX712/713
MAX713
NiMH BATTERY-CHARGING
CHARACTERISTICS AT C RATE
MAX712/713
CELL TEMPERATURE (°C)
1.50
V
∆V
CUTOFF
∆t
35
1.55
V
∆V
CUTOFF
∆t
35
1.45
T
1.40
30
1.50
T
1.45
30
25
25
0
30
60
90
0
30
60
90
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
MAX713
NiCd BATTERY-CHARGING
CHARACTERISTICS AT C/2 RATE
MAX712/713
MAX713
NiMH BATTERY-CHARGING
CHARACTERISTICS AT C/2 RATE
MAX712/713
1.50
CELL VOLTAGE (V)
35
CELL TEMPERATURE (°C)
1.50
V
1.45
T
1.40
35
1.45
V
30
30
T
1.40
25
25
0
50
100
150
0
50
100
150
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
MAX713
CHARGING CHARACTERISTICS OF A
FULLY CHARGED NiMH BATTERY
MAX712/713
MAX713
CHARGING CHARACTERISTICS OF A
FULLY CHARGED NiMH BATTERY
MAX712/713
1.65
V
1.60
CELL VOLTAGE (V)
5-MINUTE REST
BETWEEN CHARGES
∆V
CUTOFF
∆t
1.65
V
CELL TEMPERATURE (°C)
1.55
35
1.55
5-HOUR REST
BETWEEN CHARGES
1.50
T
1.45
35
1.50
T
30
30
1.45
25
25
0
5
10
15
20
0
5
10
15
20
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
4
_______________________________________________________________________________________
CELL TEMPERATURE (°C)
40
1.60
CELL VOLTAGE (V)
∆V
CUTOFF
∆t
40
CELL TEMPERATURE (°C)
CELL VOLTAGE (V)
∆V
CUTOFF
∆t
1.55
∆V
CUTOFF
∆t
40
CELL TEMPERATURE (°C)
1.55
CELL VOLTAGE (V)
40
1.60
CELL VOLTAGE (V)
40
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
