LTC1731-4.1 データシートの表示（PDF） - Linear Technology
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LTC1731-4.1 Datasheet PDF : 12 Pages
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LTC1731-4.1/LTC1731-4.2
TYPICAL PERFOR A CE CHARACTERISTICS
Trickle Charge Threshold Voltage
vs Temperature
2.470
VCC = 6V
2.465
Timer Accuracy vs Input Supply
110
VBAT = 3V
CTIMER = 0.1µF
TA = 25°C
105
Trickle Charge Current
vs Temperature
60
RPROG = 19.6k
RSENSE = 0.2Ω
VBAT = 2V
55 VCC = 6V
2.460
100
50
2.455
95
45
2.450
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1731 G04
90
4
6
Battery Charge Current
vs Temperature
540
RPROG = 19.6k
530 RSENSE = 0.2Ω
VBAT = 3V
520 VCC = 6V
510
500
490
480
470
460
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1731 G07
Program Pin Voltage
vs Input Supply
2.480
RPROG = 19.6k
2.475 VBAT = 3V
TA = 25°C
2.470
2.465
2.460
2.455
2.450
2.445
2.440
4
6
8
VCC (V)
10
12
1731 G09
8
VCC (V)
10
12
1731 G05
40
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1731 G06
Trickle Charge Threshold Voltage
vs Input Supply
2.480
RPROG = 19.6k
2.475 TA = 25°C
2.470
2.465
2.460
2.455
2.450
2.445
2.440
4
6
8
10
12
VCC (V)
1731 G08
Battery Charge Current
vs Input Supply
520
RPROG = 19.6k
515 RSENSE = 0.2Ω
VBAT = 3V
510 TA = 25°C
505
500
495
490
485
480
4
6
8
10
12
VCC (V)
1731 G10
4
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