AP3720P-G1 查看數據表（PDF） - BCD Semiconductor
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AP3720P-G1 Datasheet PDF : 13 Pages
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Preliminary Datasheet
CURRENT MODE PWM CONTROLLER FOR BJT
AP3720
Typical Performance Characteristics
100
80
60
40
20
0
0
500
1000
1500
2000
2500
3000
3500
R (KΩ)
BIAS
Figure 4. Drive Current vs. RBIAS
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (oC)
Figure 5. Start-up Current vs. Temperature
65
64
63
62
61
60
59
58
57
56
The Highest f
55
SW
The Lowest f
54
SW
The Average f
53
SW
52
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (oC)
21.0
20.5
20.0
19.5
19.0
18.5
18.0
17.5
The Highest f
SW
17.0
The Lowest f
SW
16.5
The Average f
SW
16.0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Temperature (oC)
Figure 6. Switch Frequency (65k) vs. Temperature
Figure 7. Switch Frequency (20k) vs. Temperature
Jul. 2009 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
7
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