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參數資料
| 型號： | FA5331M |
| 廠商： | FUJI ELECTRIC CO LTD |
| 元件分類： | 穩壓器 |
| 英文描述： | Bipolar IC For Power Factor Correction |
| 中文描述： | 1.5 A POWER FACTOR CONTROLLER, 220 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, SOP-16 |
| 文件頁數： | 9/13頁 |
| 文件大小： | 151K |
| 代理商： | FA5331M |
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
a
≤
R
OFST
(k
)
≤
a
where,
a
=
and, R
n
≤
100
and, R
X
: don’t connect.
You must not connect R
X
which reduces DC gain of current
error amplifier.
You can connect R
5
which is series with capacitor C
3
.
For FA5332
(Fig.11)
R
n
≤
27
and, R
X
: don’t connect.
You must not connect R
X
which reduces DC gain of current
error amplifier.
You can connect R
5
which is series with capacitor C
3
.
If you connect R
OFST
, 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
(3.510
3
–0.26R
n
)12
42+0.26R
n
13 REF
IIN–
IFB
C2
C3
R5
Rn
Cn
Current
detection
Rx
IDET
R
OFST
FA5331
2
1
16
Current
detection
13 REF
IIN–
IFB
C2
C3
R5
Rn
Cn
Rx
IDET
R
OFST
FA5332
2
1
16
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| FA5530 | Quasi-Resonant IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FA5331P | 制造商:Panasonic Industrial Company 功能描述:IC |
| 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 |
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