SC908 データシートの表示（PDF） - Semtech Corporation
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SC908 Datasheet PDF : 30 Pages
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Typical Characteristics (continued)
Charger IPreQ Line Regulation
VBAT = 2.6V, RITERM = 4.99kΩ
41.5
-40οC
41
40.5
0οC
40
39.5
TA = 25οC
39
85οC
38.5
38
4.5 4.75 5 5.25 5.5 5.75 6 6.25 6.5 6.75 7
VVAD (V)
Charging Cycle Battery Voltage and Current
700mAhr battery, RIPRGM = 2.15kΩ, RITERM = 3.48kΩ, VVAD = 5.0V, TA = 25οC
5.5
550
5
500
4.5
450
4
400
3.5
VBAT
350
3
300
2.5
250
2
IBAT
200
1.5
150
1
100
PWR
0.5
50
0
0
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5
Time (hrs)
CC-to-CV Battery Voltage and Current
700mAhr battery, RIPRGM = 2.15kΩ, RITERM = 3.48kΩ, VVAD = 5.0V, TA = 25οC
5.1
510
5
500
4.9
490
4.8
480
IBAT
4.7
470
4.6
460
4.5
450
4.4
440
4.3
430
VBAT
4.2
420
4.1
410
56
56.5
57
57.5
58
58.5
59
59.5
60
Time (min)
SC908
Charger I Programming
PreQ
VVAD = 5V, VBAT = 2.6V
70
60
50
40
30
-40οC
20
10
TA = 85οC
25οC
0
2
4
6
8
10
12
14
16
18
20
RITERM (kΩ)
Pre-Charging Battery Voltage and Current
700mAhr battery, RIPRGM = 2.15kΩ, RITERM = 3.48kΩ, VVAD = 5.0V, TA = 25οC
5.5
550
5
500
4.5
IBAT
450
4
400
3.5
350
3
300
2.5
250
2
VBAT
200
1.5
150
PWR
1
100
0.5
50
0
0
0
2
4
6
8 10 12 14 16 18 20
Time (s)
Re-Charge Cycle Battery Voltage and Current
700mAhr battery, RITERM = 3.48kΩ, VVAD = 5.0V, TA = 25οC, Load = 10mA
4.5
450
4
400
VBAT
3.5
350
3
300
2.5
250
2
200
1.5
150
IBAT
1
100
0.5
50
PWR
0
0
0.0 0.5
1.0 1.5
2.0 2.5
3.0 3.5
4.0
Time (hrs)
10
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