LTC4054-4.2/LTC4054X-4.2
U W
TYPICAL PERFOR A CE CHARACTERISTICS
PROG Pin Current vs PROG Pin
Voltage (Clamp Current)
PROG Pin Pull-Up Current vs
Temperature and Supply Voltage
PROG Pin Current vs PROG Pin
Voltage (Pull-Up Current)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3.7
3.5
3.3
3.1
2.9
2.7
2.5
0
–50
V
V
= 4.3V
PROG
BAT
= 0V
V
= 4.2V
CC
–100
–150
–200
–250
–300
–350
–400
V
= 6.5V
CC
V
V
A
= 5V
BAT
= 25°C
V
V
= 5V
BAT
T = 25°C
A
CC
CC
= 4.3V
= 4.3V
T
50
100 125
2.5
3.0 3.5 4.0 4.5
(V)
5.5
–50 –25
0
25
75
2.0
5.0
2.0
2.2
2.3
2.4
2.5
2.6
2.1
V
(V)
TEMPERATURE (°C)
V
PROG
PROG
4054 G05
4054 G04
4054 G06
Regulated Output (Float) Voltage
vs Supply Voltage
Regulated Output (Float) Voltage
vs Charge Current
Regulated Output (Float) Voltage
vs Temperature
4.26
4.24
4.22
4.20
4.18
4.16
4.14
4.12
4.10
4.215
4.210
4.205
4.200
4.195
4.190
4.185
4.215
4.210
4.205
4.200
4.195
4.190
4.185
V
A
R
= 5V
V
= 5V
PROG
T = 25°C
A
CC
= 25°C
CC
T
R
= 10k
R
= 10k
PROG
= 1.25k
PROG
–25
0
25
50
75
100
–50
0
200 300 400 500 600 700
(mA)
4.0
5.0
5.5
(V)
6.0
6.5
7.0
100
4.5
I
V
TEMPERATURE (°C)
BAT
CC
4054 G07
4054 G08
4054 G09
CHRG Pin I-V Curve
(Weak Pull-Down State)
CHRG Pin I-V Curve
(Strong Pull-Down State)
CHRG Pin Current vs Temperature
(Strong Pull-Down State)
25
20
15
10
5
20
18
16
14
12
10
8
22
20
18
16
14
12
10
8
V
V
V
= 5V
= 4V
CHRG
CC
BAT
= 1V
V
V
T
= 5V
= 4V
V
V
T
= 5V
BAT
= 25°C
CC
BAT
CC
6
= 4.3V
= 25°C
A
A
0
4
–50
0
2
3
4
5
6
7
–25
0
25
50
75
100
125
1
4
6
7
0
1
2
3
5
V
(V)
V
(V)
TEMPERATURE (°C)
CHRG
CHRG
4054 G10
4054 G11
4054 G12
405442xf
4
Linear [ Linear ]
