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): 18/39頁
文件大?。?/td> 745K
代理商: L6563
L6563 - L6563A
Application information
25/39
5.
Check that the maximum current sourced by the TBO pin (pin 6) does not exceed the
maximum specified (0.25mA):
Equation 10
In the following Mathcad sheet, as an example, the calculation is shown for the circuit
illustrated in Figure 40. Figure 41 shows the internal block diagram of the tracking boost
function.
Design data
Vin1 := 88V
Vo1:= 200V
Vin2 := 264V
Vo2:= 385V
Vox ;= 400V
Vo ;= 40V
Step 1
choose: Vinx: = 270V
Step 2
Step 3
I
TBOmax
3
R
T
-------
0.25 10
3
=
Vin
clamp:
Vox
Vo
1
Vo
2
Vo
1
--------------------------- Vin
2
=
Vox
Vo
2
Vo
2
Vo
1
--------------------------- Vin
1
Vinclamp = 278.27V
k:
3
2Vin
x
-----------------------
=
k = 7.857 x 10-3
R1:
Vo
20
----------- 10
6
=
R1 = 2 x 106
相關(guān)PDF資料
PDF描述
L6563A 0.003 A POWER FACTOR CONTROLLER WITH POST REGULATOR, PDSO14
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