LTC4055-1_15 Datasheet, PDF (5/24 Pages) Linear Technology – USB Power Controller and Li-Ion Charger

LTC4055/LTC4055-1
TYPICAL PERFORMANCE CHARACTERISTICS
Input Supply Current
vs Temperature
900
V_IN = 5V
800 ^VBAT ^{= 4.2V}
R_PROG = R_CLPROG = 100k
700
600
500
400
300
200
100
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4055 G01
Input Current Limit
vs Temperature, HPWR = 5V
515
V_IN = 5V
V_BAT = 3.5V
505 ^{RPROG = RCLPROG = 100k}
495
485
475
465
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
4055 G04
PROG Pin Voltage vs Temperature
1.020
V_IN = 5V
1.015 ^{RPROG = 100k}
1.010
1.005
1.000
0.995
0.990
0.985
0.980
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4055 G07
Input Supply Current
vs Temperature (Suspend Mode)
60
V_IN = 5V
V_BAT = 4.2V
50 R_PROG = R_CLPROG = 100k
SUSP = 5V
40
30
20
10
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4055 G02
Input Current Limit
vs Temperature, HPWR = 0V
105.0
102.5
V_IN = 5V
V_BAT = 3.5V
R_PROG = R_CLPROG = 100k
100.0
97.5
95.0
92.5
90.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
4055 G05
CLPROG Pin Voltage
vs Temperature
1.020
V_IN = 5V
1.015 ^{RCLPROG = 100k}
1.010
1.005
1.000
0.995
0.990
0.985
0.980
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4055 G08
Battery Drain Current
vs Temperature
(BAT Powers OUT, No Load)
70
V_IN = 0V
60 ^{VBAT = 4.2V}
50
40
30
20
10
0
–50 –25
0 25 50
TEMPERATURE (°C)
75 100
4055 G03
R_ON vs Temperature
250
I_LOAD = 400mA
225
V_IN = 5V
200
V_IN = 4.5V
175
V_IN = 5.5V
150
125
100
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
4055 G06
Battery Regulated Output (Float)
Voltage vs Temperature
4.3
V_IN = 5V
LTC4055
4.2
LTC4055-1
4.1
4.0
–50 –25 0
25 50 75 100
TEMPERATURE (oC)
4055 G09
4055fb
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