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參數(shù)資料
| 型號： | FA5331PM |
| 廠商： | FUJI ELECTRIC HOLDINGS CO., LTD. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Bipolar IC For Power Factor Correction |
| 中文描述： | 雙極型IC功率因數(shù)校正 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 151K |
| 代理商： | FA5331PM |
7
FA5331P(M)/FA5332P(M)
6. ON/OFF control input circuit
Figure 7 shows the ON/OFF control input circuit. If pin 12 is set
to the high level (enable), this IC outputs pulses from the OUT
pin. If pin 12 is set to the low level (disable), the internal bias
power (reference voltage) goes off and the IC current
consumption becomes about 1/10 that of its ON state. The
output level of pin 11 (CS for soft start) also goes low.
7. Output circuit
As Fig. 8 shows, pin 9 is configured as the high power terminal
(VC), independent of the IC power terminal (VCC). This pin
allows an independent drive resistance when the power
MOSFET is ON and OFF. If the drive resistances in the ON and
OFF states are Rg (on) and Rg (off), the following formulas can
be used to determine the total gate resistance
Rg:
Rg (on) = Rg1 + Rg2 .............................................(9)
Rg (off) = Rg2 ..................................................... (10)
In the standby state, the output level of pin 8 is held low.
If the potential at the drain terminal of the power MOSFET
fluctuates, the gate-drain capacitance may drive the IC output
voltage at pin 8 to below 0. Once the voltage at pin 8 reaches
–0.6V, an unwanted current flows in the IC and a large abnormal
current flows in the output circuit when the output transistor is
turned on. To prevent this, connect a Schottky diode across the
gate and source of the power MOSFET.
Fig. 7 ON/OFF control input circuit
Fig. 8 Output circuit
1k
100k
Vcc
12
ON/OFF
10
μ
A
Rg2
Rg1
GND
VCC
Cv
+
10
9
8
7
Pin7
Schottky
diode
相關PDF資料 |
PDF描述 |
|---|---|
| FA5331M | Bipolar IC For Power Factor Correction |
| FA5332M | Bipolar IC For Power Factor Correction |
| FA5332P | Bipolar IC For Power Factor Correction |
| FA5332PM | Bipolar IC For Power Factor Correction |
| FA5502 | POWER SUPPLY CONTROL IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FA5332M | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:Bipolar IC For Power Factor Correction |
| FA5332P | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:Bipolar IC For Power Factor Correction |
| FA5332P(M) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FA5331P(M) and FA5332P(M) are control ICs for a power factor correction system. |
| FA5332PM | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:Bipolar IC For Power Factor Correction |
| FA5364X | 功能描述:LED ORANGE CLEAR 5MM HI BRIGHT RoHS:是 類別:光電元件 >> LED - Millicandela 等級:2260mcd 正向電壓:2.1V 電流 - 測試:20mA 波長 - 主:590nm 波長 - 峰值:- 視角:- 透鏡類型:散射，有色 透鏡樣式/尺寸:圓頂橢圓，5.1mm x 3.7mm 封裝/外殼:徑向 尺寸/尺寸:- 高度:7.00mm 安裝類型:通孔 包裝:散裝 在特定電流下的光通量 - 測試:- |
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