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| 型号： | FL7930BM |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 19/23页 |
| 文件大小： | 0K |
| 描述： | IC PFC CTLR FLYBACK/BOUND 8SOICN |
| 标准包装： | 95 |
| 类型： | 镇流器控制器 |
| 频率： | 250kHz ~ 350kHz |
| 电流 - 电源： | 2.5mA |
| 电源电压： | 13 V ~ 20 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOP |
| 包装： | 管件 |
Typical Application Circuit
Application
LED Lighting
Device
FL7930B
Input Voltage
Range
90-265 V AC
Rated Output
Power
195 W
Output Voltage
(Maximum Current)
390 V (0.5 A)
Features
?
?
?
Average efficiency of 25%, 50%, 75%, and 100% load conditions is higher than 95% at universal input.
Power factor at rated load is higher than 0.98 at universal input.
Total Harmonic Distortion (THD) at rated load is lower than 15% at universal input.
Key Design Notes
?
?
?
When auxiliary V CC supply is not available, V CC power can be supplied through Zero Current Detect (ZCD)
winding. The power consumption of R103 is quite high, so its power rating needs checking.
Because the input bias current of INV pin is almost zero, output voltage sensing resistors (R112~R115) should
be as high as possible. However, too-high resistance makes the node susceptible to noise. Resistor values need
to strike a balance between power consumption and noise immunity.
Quick charge diode (D106) can be eliminated if output diode inrush current capability is sufficient. Through D106,
system operation is normal due to the controller’s highly reliable protection features.
Schematic
Optional
D106
600V 3A
D105
BD101,
194 ? H, 39:5
LP101,EER3124N
600V 8A
DC OUTPUT
600V,15A
R103,
10k,1W
C104,
12nF
D102,
UF4004
V AUX
R109
47
Q101
FCPF
20N60
C102,
680nF
8
5
3
2
V CC
ZCD
Comp
Out
CS
INV
7
4
1
R108 D103,1N4148
4.7
OVP
GND
6
C114,
2.2nF
C115,
2.2nF
C101,
220nF
R101,1M-J
ZNR101,
10D471
Circuit for V CC . If external V CC is used, this circuit is not needed.
? 2010 Fairchild Semiconductor Corporation
FL7930B ? Rev. 1.0.4
Figure 45.
Demonstration Circuit
19
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FL7930BMX | 功能描述:功率因数校正 IC PFC Controller for Lighting; 2nd 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 |
| FL7930BMX_G | 制造商:Fairchild Semiconductor Corporation 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述:IC PFC CTLR FLYBACK/BOUND 8SOIC |
| FL7930CM | 功能描述:功率因数校正 IC PFC Controller for Lighting; PFC Ready 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 |
| FL7930CMX | 功能描述:功率因数校正 IC Single Stage Flyback PFC Controller 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 |
| FL7930CMX_G | 制造商:Fairchild Semiconductor Corporation 功能描述:IC PFC CTLR FLYBACK/BOUND 8SOIC |
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