STEVAL-ISF001V1 STMicroelectronics, STEVAL-ISF001V1 Datasheet - Page 24

• 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

Application information
24/39
to set the output voltage at the desired values use the following design procedure:
1.
Equation 6
and choose a value Vin
output voltage range below Vox (it will equal Vox if one chooses Vin
2.
Equation 7
and check that at minimum mains voltage Vin
0.65V.
3.
Equation 8
4.
Equation 9
Determine the input RMS voltage Vin
Determine the divider ratio of the MULT pin (pin 3) bias:
Determine R1, the upper resistor of the output divider:
Calculate the lower resistor R
R2
R
T
x
Vin
such that Vin
=
=
clamp
2.5 R1
2 k R1
⋅ ⋅
⋅
=
2
⋅
Vox Vo
-------------------------- - Vin
Vo
of the output divider and the adjustment resistor R
--------------------------------------------------------------------------------------------------
(
Vo
⋅
2
2
Vin
----------------------------- -
R1
Vo
–
= Vin
–
k
1
Vo
–
=
2
2
clamp
=
2.5
–
–
1
1
-----------------------
∆
---------- - 10
Vin
Vo
x
⋅
2 Vin
20
1
Vo
) Vin
< Vin
⋅
⋅
the peak voltage on pin 3 is greater than
1
3
that produces Vo = Vox:
1
Vin
⋅
2
–
x
2
2
clamp
6
Vox Vo
-------------------------- - Vin
Vo
–
–
Vin
(
Vo
2
. This will result in a limitation of the
–
–
1
2
Vo
–
2.5
1
2
⋅
) Vin
⋅
1
x
= Vin
1
clamp
L6563 - L6563A
)
T
: