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參數(shù)資料
| 型號： | PJ34063CD |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dc To Converter Controller |
| 中文描述： | DC至轉換器控制器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 338K |
| 代理商： | PJ34063CD |
PJ34063
Dc To Converter Controller
7-8
2002/01.rev.A
T
able :
D
esign
F
ormula
Calculation
ton
toff
(ton+toff) max
Step-Up
Step-Down
Voltage-Inverting
│
Vout
│
+V
F
V
CC
+ Vsat
Vout+V
F
-Vin(min)
V
CC
(min)-Vsat-Vout
V
OUT
+V
F
V
CC
(min)-Vsat-Vout
min
1
f
min
4.0×10
-5
ton
2Iout(max)
1
f
min
1
f
C
T
4.0×10
-5
ton
4.0×10
-5
ton
I
pk
(switch)
2Iout(max)
+
1
toff
ton
2Iout(max)
+
1
toff
ton
Rsc
L (min)
0.3/I
PK
(switch)
(min)
switch
Ipk
0.3/I
PK
(switch)
Vout
Vsat
0.3/I
PK
(switch)
(min)
switch
Ipk
(max)
)
(
ton
Vsat
Vin
=
(max)
)
(
(min)
Ipk
ton
switch
Vin
=
(max)
)
(
ton
Vsat
Vin
=
Co
)
(
9
pp
Vripple
Ioutton
+
)
(
8
)
)(
(
pp
Vripple
toff
ton
switch
Ipk
)
(
9
pp
Vripple
Ioutton
TERMS AND DEFINITIONS
Vsat = Saturation Voltage of the output switch.
V
F
= Forward Voltage drop of the rectifier.
The following power supply characteristics must be chosen:
V
in
= Normal input voltage
Vout: Desied Output voltage,
|
Vout
|
=1.25 (1+
1
2
R
R
)
Iout : Desired output current.
fmin : Minimum desired output switching frequency at the selected values for V
in
and.Io.
Vripple(p-p): Desired peak-to-peak output ripple voltage. in practice, the calculated capaitor value will need to be increased
due to its equivalent series resistance and board layout.
The ripple voltage should be kept to a low value since it will directly affect the line and load regulation.
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相關代理商/技術參數(shù) |
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|---|---|
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