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| 型号： | MC33262CDR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/19页 |
| 文件大小： | 394K |
| 描述： | IC PFC CONTROLLER CRM 8SOIC |
| 标准包装： | 2,500 |
| 模式： | 临界传导（CRM） |
| 电流 - 启动： | 250µA |
| 电源电压： | 12 V ~ 28 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
MC34262, MC33262
http://onsemi.com
14
Figure 23. Power Factor Corrected Input Waveforms
(Figure 21 Circuit)
Figure 24. Output Voltage Startup Overshoot
(Figure 21 Circuit)
Input = 115 VAC, Output = 175 W
Input = 230 VAC, Output = 175 W
2.0 ms/DIV
2.0 ms/DIV
Without Overvoltage Comparator
200 ms/DIV
200 ms/DIV
500 V
400 V
0 V
432 V
400 V
0 V
26%
8%
With Overvoltage Comparator
Figure 25. Power Factor Test SetUp
0.005
1.0
0.005
HARM
FREQ
11
LO
0.1
O
I
T
0 to 270 Vac
Output to Power
Factor
Controller Circuit
Earth
Line
Neutral
115 Vac
Input
RFI Test Filter
Autoformer
2X Step-Up
Isolation
Transformer
LO
HI
HI
V
A
Ainst
Acf
Vcf
Arms
Vrms
PF
VA
W
13
9
7
5
3
2
1
0
Voltech
AC POWER ANALYZER
PM 1000
An RFI filter is required for best performance when connecting the preconverter directly to the ac line. The filter attenuates
the level of high frequency switching that appears on the ac line current waveform. Figures 20 and 21 work well with
commercially available two stage filters such as the Delta Electronics 03DPCG5. Shown above is a single stage test filter
that can easily be constructed with four ac line rated capacitors and a commonmode transformer. Coilcraft CMT3282
was used to test Figures 20 and 21. It has a minimum inductance of 28 mH and a maximum current rating of 2.0 A. Coilcraft
CMT4179 was used to test Figure 22. It has a minimum inductance of 17 mH and a maximum current rating of 9.0 A. Circuit
conversion efficiency h (%) was calculated without the power loss of the RFI filter.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33262D | 功能描述:功率因数校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC33262DG | 功能描述:功率因数校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC33262DR2 | 功能描述:功率因数校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC33262DR2G | 功能描述:功率因数校正 IC Critical Mode PFC w/OVP RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| MC33262P | 功能描述:功率因数校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
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