5
LTC4060
4060f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
NiMH Battery Charging
Characteristics at 1C Rate
NiCd Battery Charging
Characteristics at 1C Rate
NiMH Battery Charging
Characteristics at C/2 Rate
NiCd Battery Charging
Characteristics at C/2 Rate
IFCH vs Temperature and
Supply Voltage
IFCL vs Temperature and
Supply Voltage
IBRD vs Temperature and
Supply Voltage
VMDV vs Temperature and
Supply Voltage
tACC vs Temperature and
Supply Voltage
CHARGE TIME (MINUTES)
0
1.4
CELL
VOLTAGE
(V)
1.5
1.6
1.7
10
20
30
40
4060 G02
50
60
–V TERMINATION
TA = 25°C
CHARGE TIME (MINUTES)
020
1.35
CELL
VOTLAGE
(V)
1.45
1.60
40
80
100
4060 G03
1.40
1.55
1.50
60
120
140
–V TERMINATION
TA = 25°C
CHARGE TIME (MINUTES)
020
1.40
CELL
VOTLAGE
(V)
1.50
1.65
40
80
100
4060 G04
1.45
1.60
1.55
60
120
140
–V TERMINATION
TEMPERATURE (°C)
–50
1.990
I FCH
(A)
1.995
2.000
2.005
2.010
–25
0
25
50
4060 G05
75
100
125
VCC = 10V
VCC = 4.5V
TEMPERATURE (°C)
–50
398
I FCL
(mA)
399
400
401
402
–25
0
25
50
4060 G06
75
100
125
VCC = 10V
VCC = 4.5V
TEMPERATURE (°C)
–50
–340
I BRD
(
A)
–300
–260
–25
0
25
50
4060 G07
75
100
125
VCC = 10V
VCC = 4.5V
TEMPERATURE (°C)
–50
12
14
18
25
75
4060 G08
10
8
–25
0
50
100
125
6
4
16
V
MDV
(mV)
NiCd
4.5V ≤ VCC ≤ 10V
NiMH
4.5V ≤ VCC ≤ 10V
TEMPERATURE (°C)
–50
0.5
1.0
1.7
25
75
4060 G09
0
–0.5
–25
0
50
100
125
–1.0
–1.5
1.5
ERROR
(%)
VCC = 10V
VCC = 4.5V
RPROG = 3480
CTIMER = 470pF
RPROG = 698
CTIMER = 1.2nF
CHARGE TIME (MINUTES)
0
1.55
CELL
VOLTAGE
(V)
1.60
1.65
1.70
10
20
30
40
4060 G01
50
60
–V TERMINATION
TA = 25°C