LTC4055 Linear Technology, LTC4055 Datasheet - Page 5

• Manufacturer Part Number: LTC4055
• Description: USB Power Controller and Li-Ion Linear Charger
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
1.015
1.010
1.000
0.995
0.990
0.980
1.020
1.005
0.985
515
505
495
485
475
465
100
120
115
110
105
95
90
80
85
–50 –25
–50
–50
PROG Pin Voltage vs Temperature
Input Current Limit vs
Temperature, HPWR = 5V
Regulated Output Voltage-
Recharge Threshold Voltage
vs Temperature
V
V
R
V
R
V
IN
BAT
PROG
IN
PROG
IN
= 5V
= 5V
= 5V
–25
–25
= 3.5V
= R
= 100k
CLPROG
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
25
= 100k
25
25
50
50
50
75
W
75
100
75
4055 G04
4055 G07
4055 G10
U
125
100
100
4.220
4.215
4.210
4.205
4.200
4.195
4.190
4.180
4.185
105.0
102.5
100.0
1.000
0.990
0.980
1.020
1.015
1.010
1.005
0.995
0.985
90.0
97.5
95.0
92.5
4.5
–50
Battery Regulated Output (Float)
Voltage vs Supply Voltage
–50
Input Current Limit vs
Temperature, HPWR = 0V
CLPROG Pin Voltage
vs Temperature
V
V
R
V
R
IN
BAT
PROG
IN
CLPROG
4.75
–25
= 5V
= 5V
–25
= 3.5V
= R
= 100k
CLPROG
0
5
TEMPERATURE ( C)
TEMPERATURE ( C)
0
V
25
5.25
IN
= 100k
(V)
25
50
5.5
50
75
5.75
100
75
4055 G11
4055 G05
4055 G08
6
125
100
600
500
400
300
200
100
0
0
4.215
4.210
4.200
4.195
4.190
4.180
Battery Current and Voltage
vs Time
4.220
4.205
4.185
0.8AHr CELL
V
T
R
250
225
150
100
200
175
125
IN
A
PROG
20
= 25 C
–50
–50
= 5V
R
Battery Regulated Output (Float)
Voltage vs Temperature
I
V
40
LOAD
ON
= 105k
IN
–25
= 5V
vs Temperature
60
–25
= 400mA
V
TIME (MINUTES)
IN
80
= 4.5V
0
TEMPERATURE ( C)
TEMPERATURE ( C)
100
0
V
V
IN
IN
25
V
120
= 5V
= 5.5V
BAT
I
BAT
25
140
LTC4055
50
160
50
75
CHRG
180
4055 G12
100
75
200
4055 G06
6
5
4
3
2
1
0
4055 G09
4055p
5
125
100