Datasheet

LTC4053-4.2
5
4053fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
PROG Pin Voltage
vs Charge Current
PROG Pin Voltage vs V
CC
Constant Current Mode
PROG Pin Voltage vs Temperature
Constant Current Mode
CHARGE CURRENT (mA)
0
V
PROG
(V)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
400
4052 G10
100 200 300 50035050 150 250 450
V
CC
= 5V
T
A
= 25°C
R
PROG
= 3k
V
CC
(V)
4
1.485
V
PROG
(V)
1.490
1.495
1.500
1.505
1.515
4.5
5 5.5 6
4053 G11
6.5 7
1.510
V
BAT
= 3.5V
T
A
= 25°C
R
PROG
= 3k
TEMPERATURE (°C)
–50
1.485
V
PROG
(V)
1.490
1.495
1.500
1.505
1.515
–25
02550
4053 G12
75 100
1.510
V
CC
= 5V
V
BAT
= 4V
R
PROG
= 3k
Trickle Charge Current
vs Temperature
CHRG Pin Weak Pull-Down
Current vs Temperature
CHRG Pin Output Low Voltage
vs Temperature
TEMPERATURE (°C)
–50 –25
7
I
BAT
(% OF PROGRAMMED CURRENT)
9
12
0
50
75
4053 G13
8
11
10
25
100
125
V
BAT
= 2V
T
A
= 25°C
R
PROG
= 3k
TEMPERATURE (°C)
–50
25
I
CHRG
(µA)
26
28
29
30
35
32
0
50
75
LTC1323 • TPC05
27
33
34
31
–25
25
100
125
V
CC
= 5V
I
BAT
< C/10
TEMPERATURE (°C)
–50
V
CHRG
(V)
0.4
0.5
0.6
25 75
4053 G15
0.3
0.2
–25 0
50 100 125
0.1
0
V
CC
= 5V
I
CHRG
= 5mA
Timer Error vs Temperature
TEMPERATURE (°C)
–50
–5
t
TIMER
(%)
–4
–2
–1
0
5
2
0
50
75
LTC1323 • TPC05
–3
3
4
1
–25
25
100
125
V
CC
= 5V
C
TIMER
= 0.1µF
Timer Error vs V
CC
V
CC
(V)
4
–5
t
TIMER
(%)
–3
–1
1
4.5
5
5.5 6
4056 G17
6.5
3
5
–4
–2
0
2
4
7
T
A
= 25°C
C
TIMER
= 0.1µF