STEVAL-ISF001V1 STMicroelectronics, STEVAL-ISF001V1 Datasheet - Page 25

• Manufacturer Part Number: STEVAL-ISF001V1
• Description: BOARD EVAL FOR L6563/STW55NM60N
• Manufacturer: STMicroelectronics
• Type: MOSFET & Power Driverr

Specifications of STEVAL-ISF001V1

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6563
• Primary Attributes: 3 kW, 400 V Out, FOT(Fixed Off Time Control), 240 VAC (185 ~ 265 Vrms)
• Secondary Attributes: Iout Max 7.5 A
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STW55NM60N
• Other names: 497-8850

L6563 - L6563A
5.
Equation 10
In the following Mathcad® sheet, as an example, the calculation is shown for the circuit
illustrated in
function.
Design data
Step 1
Step 2
Step 3
Vin
k:
R1:
Check that the maximum current sourced by the TBO pin (pin 6) does not exceed the
maximum specified (0.25mA):
Vin
Vin
Vox ;= 400V
∆Vo ;= 40V
choose: Vin
=
clamp
1
2
=
-----------------------
:= 88V
:= 264V
2 Vin
∆
---------- - 10
20
:
⋅
Vo
3
Figure
=
Vox Vo
-------------------------- - Vin
Vo
⋅
x
x
2
: = 270V
6
–
–
40.
Vo
1
1
Figure 41
⋅
Vo
Vo
2
1
2
–
:= 200V
:= 385V
Vox Vo
-------------------------- - Vin
Vo
I
shows the internal block diagram of the tracking boost
TBOmax
2
–
–
Vo
1
2
⋅
=
------ -
R
3
T
1
≤
0.25 10
⋅
–
3
Vin
R1 = 2 x 10
k = 7.857 x 10
Application information
clamp
= 278.27V
6
Ω
-3
25/39