NiCd /NiMH Ba t t e ry
Fa s t -Ch a rg e Co n t ro lle rs
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(T = +25°C, unless otherwise noted.)
A
MAX713
MAX713
NiMH BATTERY-CHARGING
CHARACTERISTICS AT C RATE
NiCd BATTERY-CHARGING
CHARACTERISTICS AT C RATE
1.60
1.55
40
35
1.55
1.50
40
35
∆V
∆t
∆V
∆t
V
V
CUTOFF
CUTOFF
1.50
1.45
1.45
1.40
30
25
30
25
T
T
2/MAX713
0
30
60
90
0
30
60
90
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
MAX713
MAX713
NiMH BATTERY-CHARGING
NiCd BATTERY-CHARGING
CHARACTERISTICS AT C/2 RATE
CHARACTERISTICS AT C/2 RATE
∆V
1.55
1.50
40
35
∆V
CUTOFF
∆t
1.50
1.45
1.40
35
30
25
CUTOFF
∆t
V
V
1.45
1.40
30
25
T
T
0
50
100
150
0
50
100
150
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
MAX713
MAX713
CHARGING CHARACTERISTICS OF A
FULLY CHARGED NiMH BATTERY
CHARGING CHARACTERISTICS OF A
FULLY CHARGED NiMH BATTERY
1.65
1.60
1.55
1.65
1.60
1.55
5-MINUTE REST
BETWEEN CHARGES
V
V
40
35
40
35
∆V
∆V
CUTOFF
∆t
CUTOFF
∆t
5-HOUR REST
BETWEEN CHARGES
1.50
1.45
1.50
1.45
30
25
30
25
T
T
0
5
10
15
20
0
5
10
15
20
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
