Datasheet

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
I
FCH
vs Temperature and
Supply Voltage
I
FCL
vs Temperature and
Supply Voltage
I
BRD
vs Temperature and
Supply Voltage
V
MDV
vs Temperature and
Supply Voltage
t
ACC
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
T
A
= 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
T
A
= 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
V
CC
= 10V
V
CC
= 4.5V
TEMPERATURE (°C)
–50
398
I
FCL
(mA)
399
400
401
402
–25 0 25 50
4060 G06
75 100 125
V
CC
= 10V
V
CC
= 4.5V
TEMPERATURE (°C)
–50
–340
I
BRD
(µA)
–300
–260
–25 0 25 50
4060 G07
75 100 125
V
CC
= 10V
V
CC
= 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 ≤ V
CC
≤ 10V
NiMH
4.5V ≤ V
CC
≤ 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 (%)
V
CC
= 10V
V
CC
= 4.5V
R
PROG
= 3480Ω
C
TIMER
= 470pF
R
PROG
= 698Ω
C
TIMER
= 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
T
A
= 25°C