LTC4059A Linear Technology, LTC4059A Datasheet - Page 3

• Manufacturer Part Number: LTC4059A
• Description: 900mA Linear Li-Ion Battery Chargers
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
4.18
4.14
4.10
4.26
4.24
4.22
4.20
4.16
4.12
600
500
400
300
200
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0
4
0
Battery Regulation (Float) Voltage
vs Battery Charge Current
Charge Current vs Input Voltage
PROG Pin Voltage
vs Charge Current
V
T
V
T
R
V
T
R
BAT
A
A
CC
A
PROG
CC
PROG
= 25 C
= 25 C
= 25 C
= 5V
= 5V
= 3.85V
R
R
100
100
PROG
PROG
= 2.43k
= 2.43k
5
= 2.43k
= 12.1k
200
200
I
I
BAT
V
BAT
CC
6
(mA)
(mA)
(V)
300
300
THERMAL
LIMITING
7
W
400
400
4059 G04
4059 F07
4059 G01
U
500
500
8
1.24
1.23
1.18
1.22
1.21
1.20
1.19
4.20
4.18
4.16
4.24
4.23
4.22
4.21
4.19
4.17
600
500
400
300
200
100
0
–50
–50
2.5
Battery Regulation (Float) Voltage
vs Temperature
PROG Pin Voltage vs Temperature
(Constant Current Mode)
Charge Current vs Battery Voltage
V
T
R
V
V
V
I
R
BAT
A
CC
BAT
CC
PROG
CC
PROG
–25
= 25 C
= 5V
= 5V
= 5V
= 2mA
–25
= 3.85V
= 2.43k
= 2.43k
R
3
PROG
0
TEMPERATURE ( C)
TEMPERATURE ( C)
0
R
PROG
= 2.43k
25
V
BAT
3.5
25
= 12.1k
(V)
50
Li CC = 0V
LTC4059A
50
LTC4059 ONLY
75
Li CC = 5V
4
100
75
4059 G08
4059 G05
4059 G02
125
4.5
100
LTC4059/LTC4059A
1200
1000
4.20
4.18
4.16
4.24
4.23
4.22
4.21
4.19
4.17
600
500
300
200
100
900
800
700
600
500
400
400
0
–50
–50
4
Power FET “ON” Resistance
vs Temperature
Regulated Output (Float) Voltage
vs Supply Voltage
Charge Current vs Ambient
Temperature with Thermal
Regulation
V
I
V
V
T
I
R
BAT
BAT
CC
A
CC
BAT
PROG
–25
= 25 C
= 5V
R
= 5V
= 100mA
–25
= 10mA
= 3.85V
PROG
AMBIENT TEMPERATURE ( C)
= 2.43k
LOOP IN OPERATION
THERMAL CONTROL
www.DataSheet4U.com
5
0
= 2.43k
TEMPERATURE ( C)
0
R
PROG
25
V
CC
25
= 12.1k
6
(V)
50
50
75
7
100
75
4059 G06
4059 G09
4059 G03
4059fa
3
125
100
8