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CS52843 데이터시트(PDF) 5 Page - ON Semiconductor

부품명 CS52843
상세설명  Current Mode PWM Control Circuit
PDF  9 Pages
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제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
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CS52843 데이터시트(HTML) 5 Page - ON Semiconductor

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CS52843
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5
TYPICAL PERFORMANCE CHARACTERISTICS
900
800
700
600
500
400
300
200
100
.0005
.001
.002
.003
.005
.01
.02 .03 .04 .05
CT (μF)
100
90
80
70
60
50
40
30
20
10
RT (Ω)
Figure 2. Oscillator Frequency vs CT
Figure 3. Oscillator Duty Cycle vs RT
RT = 680 Ω
RT = 1.5 kΩ
RT = 10 kΩ
VREF
COMP
VCC
VOUT
GND
VFB
Sense
OSC
CT
VREF
VCC
VOUT
GND
A
0.1 μF
0.1 μF
1.0 kΩ
2N2222
RT
100 kΩ
5.0 kΩ
Sense
Adjust
4.7 kΩ
1.0 kΩ
Error Amp
Adjust
4.7 kΩ
Figure 4. Test Circuit Open Loop Laboratory Test Fixture
1.0 W
CIRCUIT DESCRIPTION



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