LTC4069-4.4 Linear Technology, LTC4069-4.4 Datasheet - Page 4

• Manufacturer Part Number: LTC4069-4.4
• Description: Standalone 750mA Li-Ion Battery Charger in 2 x 2 DFN
• Manufacturer: Linear Technology

LTC4069-4.4
TYPICAL PERFORMANCE CHARACTERISTICS
4
4.44
4.42
4.40
4.38
4.36
1.02
1.01
0.98
1.00
0.99
200
175
150
125
100
75
50
25
0
–50
0
4
Battery Regulation (Float) Voltage
vs Charge Current
Charge Current vs Supply Voltage
(Constant-Current Mode)
PROG Pin Voltage vs Temperature
(Constant-Current Mode)
R
V
T
V
T
R
V
V
R
BAT
A
CC
A
PROG
PROG
CC
BAT
PROG
= 25°C
= 25°C
= 5V
= 5V
–25
= 3.8V
= 3.8V
100
= 10k
= 2k
= 10k
4.5
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
0
200
I
BAT
25
5
(mA)
300
50
5.5
400
75
4069 G04
4069 G01
4069 G07
500
100
6
4.44
4.42
4.40
4.38
4.36
600
500
400
300
200
100
1.2
1.0
0.8
0.6
0.4
0.2
0
0
–50
0
Battery Regulation (Float) Voltage
vs Temperature
Charge Current vs Battery Voltage
PROG Pin Voltage
vs Charge Current
0
V
T
R
V
T
R
CC
A
PROG
CC
A
PROG
= 25°C
= 25°C
= 5V
= 5V
–25
100
1
= 2k
= 2k
TEMPERATURE (°C)
0
200
2
I
V
BAT
BAT
25
(mA)
(V)
300
3
50
400
4
75
4069 G05
4069 G02
4069 G08
100
500
5
4.44
4.42
4.40
4.38
4.36
600
400
300
100
550
350
300
500
200
500
450
400
0
–50
–50
4
Charge Current vs Ambient
Temperature with Thermal
Regulation (Constant-Current Mode)
Battery Regulation (Float) Voltage
vs Supply Voltage
Power FET On-Resistance
vs Temperature
V
I
V
I
R
V
V
R
BAT
BAT
CC
CC
CC
BAT
PROG
PROG
= 4V
= 400mA
= 5V
= 5V
–25
= 2mA
= 3.8V
LOOP IN OPERATION
THERMAL CONTROL
= 2k
= 2k
4.5
0
www.DataSheet4U.com
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
0
50
25
5
50
100
5.5
75
406944fa
4069 G09
4069 G03
4069 G06
150
100
6