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參數(shù)資料
| 型號： | L6563 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.003 A POWER FACTOR CONTROLLER WITH POST REGULATOR, PDSO14 |
| 封裝： | LEAD FREE, SOP-14 |
| 文件頁數(shù)： | 13/39頁 |
| 文件大?。?/td> | 745K |
| 代理商： | L6563 |
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Application information
L6563 - L6563A
20/39
The twice-mains-frequency (2fL) ripple appearing across CFF is triangular with a peak-to-
peak amplitude that, with good approximation, is given by:
Equation 4
where fL is the line frequency. The amount of 3
rd harmonic distortion introduced by this
ripple, related to the amplitude of its 2fL component, will be:
Equation 5
amount of maximum desired 3rd harmonic distortion. Always connect RFF and CFF to the
pin, the IC will not work properly if the pin is either left floating or connected directly to
ground.
Figure 36. RFFCFF as a function of 3
rd harmonic distortion introduced in the input
current
The dynamics of the voltage feedforward input is limited downwards at 0.5V (see Figure 35),
that is the output of the multiplier will not increase any more if the voltage on the VFF pin is
below 0.5V. This helps to prevent excessive power flow when the line voltage is lower than
the minimum specified value (brownout conditions).
V
FF
2V
MULTpk
14f
LRFFCFF
+
---------------------------------------
=
D
3%
100
2
πf
LRFFCFF
---------------------------------
=
D %
3
0.1
1
10
0.01
0.1
1
10
f = 50 Hz
L
f = 60 Hz
L
R
C
[s]
FF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6563_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Advanced transition-mode PFC controller |
| L6563A | 功能描述:功率因數(shù)校正 IC Advanced transition mode PFC controller RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6563ATR | 功能描述:功率因數(shù)校正 IC Advanced transition mode PFC controller RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6563CYTR | 制造商:ST 功能描述:ADVANCED TRANSITION-MODE PFC CONTROLLER |
| L6563H | 功能描述:功率因數(shù)校正 IC High voltage start Transition-mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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