LTC4085 查看數據表（PDF） - Linear Technology
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LTC4085 Datasheet PDF : 24 Pages
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LTC4085
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.
Input Supply Current
vs Temperature
900
VIN = 5V
800 VBAT = 4.2V
RPROG = 100k
700 RCLPROG = 2k
600
500
400
300
200
100
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4085 G01
Input Current Limit
vs Temperature, HPWR = 5V
525
VIN = 5V
VBAT = 3.7V
515
RPROG = 100k
RCLPROG = 2k
505
495
485
475
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4085 G04
PROG Pin Voltage
vs Temperature
1.020
1.015
1.010
VIN = 5V
VBAT = 4.2V
RPROG = 100k
RCLPROG = 2k
1.005
1.000
0.995
0.990
0.985
0.980
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4085 G07
Input Supply Current vs
Temperature (Suspend Mode)
70
VIN = 5V
60
VBAT = 4.2V
RPROG = 100k
RCLPROG = 2k
50 SUSP = 5V
40
30
20
10
0
–50 25
0 25 50
TEMPERATURE (°C)
75 100
4085 G02
Input Current Limit
vs Temperature, HPWR = 0V
110 VIN = 5V
108 VBAT = 3.7V
106
RPROG = 100k
RCLPROG = 2k
104
102
100
98
96
94
92
90
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4085 G05
VFLOAT Load Regulation
4.30
RPROG = 34k
4.25
4.20
4.15
4.10
4.05
4.00
0 200 400 600 800 1000
IBAT (mA)
4085 G08
Battery Drain Current vs Temperature
(BAT Powers OUT, No Load)
100 VIN = 0V
90 VBAT = 4.2V
80
70
60
50
40
30
20
10
0
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4085 G03
CLPROG Pin Voltage
vs Temperature
1.2
VIN = 5V
RCLPROG = 2k
1.0
HPWR = 5V
0.8
0.6
0.4
HPWR = 0V
0.2
0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4085 G06
Battery Regulation (Float)
Voltage vs Temperature
4.220 VIN = 5V
4.215 IBAT = 2mA
4.210
4.205
4.200
4.195
4.190
4.185
4.180
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4085 G09
4085fd
5
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