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參數(shù)資料
| 型號： | FA5331P |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A POWER FACTOR CONTROLLER, 220 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 13/13頁 |
| 文件大?。?/td> | 151K |
| 代理商： | FA5331P |
FA5331P(M)/FA5332P(M)
9
4. No-load operation
The following condition should be meet to prevent from
overvoltage and audible noise during no-load or light-load
operation.
For FA5331 (Fig.10)
0.85
≤ ROFST(k)≤
where,
=
and, Rn
≤ 100
and, RX: don’t connect.
You must not connect RX which reduces DC gain of current
error amplifier.
You can connect R5 which is series with capacitor C3.
For FA5332 (Fig.11)
Rn
≤ 27
and, RX: don’t connect.
You must not connect RX which reduces DC gain of current
error amplifier.
You can connect R5 which is series with capacitor C3.
If you connect ROFST, dead time of AC input current will
extend.
5. How to prevent from intermittent switching of low
frequency
An intermittent switching, which frequency is lower than 10Hz,
occurs in some applications.
In this case, it is possible to prevent from this intermittent
switching to reduce feedback gain by decreasing the
resistance of R4. (See Fig. 2)
You must check the effect thoroughly because this intermittent
switching depends on load, temperature and input condition.
Fig.10
Fig.11
(3.5103–0.26Rn)12
42+0.26Rn
13 REF
IIN–
IFB
C2
C3
R5
Rn
Cn
Current
detection
Rx
IDET
ROFST
FA5331
2
1
16
Current
detection
13 REF
IIN–
IFB
C2
C3
R5
Rn
Cn
Rx
IDET
ROFST
FA5332
2
1
16
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FA5331P(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. |
| FA5331PM | 制造商:FUJI 制造商全稱:Fuji Electric 功能描述:Bipolar IC For Power Factor Correction |
| 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. |
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