LTC4060
U W
TYPICAL PERFOR A CE CHARACTERISTICS
NiMH Battery Charging
Characteristics at 1C Rate
NiCd Battery Charging
Characteristics at 1C Rate
NiMH Battery Charging
Characteristics at C/2 Rate
1.60
1.55
1.50
1.45
1.40
1.35
1.70
1.65
1.60
1.55
1.7
1.6
1.5
1.4
T
= 25°C
T
= 25°C
T
= 25°C
A
A
A
–∆V TERMINATION
–∆V TERMINATION
–∆V TERMINATION
0
20
40
60
80
100 120 140
0
10
20
30
40
50
0
10
20
30
40
50
60
60
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
CHARGE TIME (MINUTES)
4060 G03
4060 G01
4060 G02
NiCd Battery Charging
Characteristics at C/2 Rate
I
FCH vs Temperature and
IFCL vs Temperature and
Supply Voltage
Supply Voltage
1.65
1.60
1.55
1.50
1.45
1.40
402
401
400
399
2.010
2.005
2.000
1.995
–∆V TERMINATION
V
CC
= 10V
V
= 10V
CC
V
= 4.5V
CC
V
CC
= 4.5V
398
1.990
–50 –25
0
25
50
75 100 125
0
20
40
60
80
100 120 140
–50 –25
0
25
50
75 100 125
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE TIME (MINUTES)
4060 G06
4060 G04
4060 G05
IBRD vs Temperature and
Supply Voltage
VMDV vs Temperature and
Supply Voltage
tACC vs Temperature and
Supply Voltage
1.7
1.5
18
16
–260
V
= 10V
CC
NiCd
V
= 10V
CC
4.5V ≤ V ≤ 10V
CC
1.0
14
12
10
8
0.5
–300
V
= 4.5V
CC
V
= 4.5V
NiMH
0
CC
4.5V ≤ V ≤ 10V
CC
–0.5
–1.0
–1.5
R
TIMER
= 3480Ω
= 470pF
PROG
C
6
R
TIMER
= 698Ω
= 1.2nF
PROG
C
–340
4
–50 –25
0
25
50
75 100 125
–50 –25
0
25
50
75
100 125
50
100 125
–50 –25
0
25
75
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
4060 G07
4060 G08
4060 G09
4060f
5
Linear Systems [ Linear Systems ]
