EVL6563H-100W STMicroelectronics, EVL6563H-100W Datasheet - Page 30

• Manufacturer Part Number: EVL6563H-100W
• Description: EVAL BOARD FOR L6563 (100W)
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVL6563H-100W

• Main Purpose: Power Management, Power Factor Correction
• Embedded: No
• Utilized Ic / Part: L6563
• Primary Attributes: 100W Power Factor Correction and Preregulator Combination
• Secondary Attributes: Transition Mode & Active Tracking Boost Function.
• Product: Power Management Modules
• Supply Current: 5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6563H
• Other names: 497-10379; 497-10379-NHD

Application information
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1.
2.
3.
4.
5.
Figure 43
Figure 43. Tracking boost block
Determine the input RMS voltage Vinclamp that produces Vo = Vox:
and choose a value Vin
the output voltage range below Vox (it is equal Vox if one chooses Vin
Determine the divider ratio of the MULT pin (#3) bias:
and check that at minimum mains voltage Vin1 the peak voltage on pin 3 is greater than
0.65 V.
Determine R1, the upper resistor of the output divider, for instance 3 MΩ.
Calculate the lower resistor R2 of the output divider and the adjustment resistor RT:
Check that the maximum current sourced by the TBO pin (#6) does not exceed the
maximum specified (0.2 mA):
shows the internal block diagram of the tracking boost function.
⎧
⎪ ⎪
⎨
⎪
⎪
⎩
R
R
Vin
2
T
=
=
clamp
2
x
5 .
2
such that Vin
Doc ID 16047 Rev 2
⋅
⋅
=
R
k
1
⋅
I
Vox
Vo
TBO
R
⋅
(
1
Vo
2
⋅
max
Vin
−
−
Vo
1
k
Vo
Vo
−
=
2
2
=
2
2
1
1
−
−
5 .
R
≤
3
⋅
2
Vin
Vo
T
)
Vin
Vinx < Vinclamp. This results in a limitation of
⋅
⋅
3
Vin
≤
Vin
Vin
1
1
2
0
2 .
−
2
x
2
−
Vox
−
Vo
⋅
10
(
Vin
Vo
2
−
−
3
−
1
2
Vo
Vo
−
2
2
1
5 .
⋅
)
Vin
⋅
Vin
1
1
x
= Vin
clamp
L6563H
)