參數(shù)資料
型號(hào)： 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(yè)數(shù)： 9/39頁(yè)
文件大?。?/td> 745K
代理商： L6563
L6563 - L6563A
Application information
17/39
An important advantage of this technique is that the overvoltage level can be set
independently of the regulated output voltage: the latter depends on the ratio of R1 to R2,
the former on the individual value of R1. Another advantage is the precision: the tolerance of
the detection current is 15%, which means 15% tolerance on the
V
O. Since it is usually
much smaller than Vo, the tolerance on the absolute value will be proportionally reduced.
Example: VO = 400V, VO = 40V.
Then: R1 = 40V/20A = 2M
; R2 = 2.52M/(400-2.5) = 12.58k.
The tolerance on the OVP level due to the L6563/A will be 400.15 = 6 V, that is ± 1.36%.
When either OVP is activated the quiescent consumption is reduced to minimize the
discharge of the Vcc capacitor.
Figure 34. Output voltage setting, OVP and FFP functions: internal block diagram
-
+
2.5V
L6563
L6563A
1
2
INV
COMP
E/A
+
-
Frequency
Compensation
+
-
R2
7
PFC_OK
ITBO
2.25V
Static OVP
Dynamic OVP
20 A
Vout
{R1a
R1b
R1
9.5V
FAULT (latched)
TBO
FUNCTION
R4
{R3a
R3b
R3
+
-
FAULT (not latched)
0.26V
9.5V
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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(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)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(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)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(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
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