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AP3720 Folha de dados(PDF) 7 Page - BCD Semiconductor Manufacturing Limited

Nome de Peças AP3720
Descrição Electrónicos  CURRENT MODE PWM CONTROLLER FOR BJT
PDF  13 Pages
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Fabricante Electrônico  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Página de início  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP3720 Folha de dados(HTML) 7 Page - BCD Semiconductor Manufacturing Limited

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



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