STEVAL-ISA019V2 STMicroelectronics, STEVAL-ISA019V2 Datasheet - Page 10

• Manufacturer Part Number: STEVAL-ISA019V2
• Description: BOARD EVAL SMPS L6565 3PHASE APP
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-ISA019V2

• Mfg Application Notes: L6565/STC04IE170HV AppNote
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 80W
• Voltage - Output: 24V
• Current - Output: 3.33A
• Voltage - Input: 250 ~ 850V
• Regulator Topology: Flyback
• Board Type: Fully Populated
• Utilized Ic / Part: L6565, STC04IE170HV
• Input Voltage: 250 V to 850 V
• Output Voltage: 24 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L6565, STC04IE170HV
• Other names: 497-6339

Table 2.
Note:
10/34
Flyback stage design
wire
no.
12
14
16
18
20
22
24
26
28
30
32
34
Diameter
d, mils
81.6
64.7
51.3
40.7
32.3
25.6
20.3
16.1
12.7
10.1
8.1
6.4
Equation 18
Table 2
frequencies.
Skin effect AC-DC resistance ratios for square-wave currents
To completely avoid the skin effect, the maximum diameter allowed is 20.3 mils, which is
equal to 0.5 mm.
For practical considerations, to better optimize the utilization of the transformer window, and
comply with
Equation 19
The specifications of the transformer provided by Tronic, according to the above
calculations, are shown in
depth S,
Skin
mils
17.9
17.9
17.9
17.9
17.9
17.9
17.9
17.9
17.9
17.9
17.9
17.9
provides the skin effect resistance ratios due to eddy currents for different
25 kHz
Equation 15
4.56 1.45
3.61 1.30
2.87 1.10
2.27 1.05
1.80 1.00
1.43 1.00
1.13 1.00
0.90 1.00
0.71 1.00
0.56 1.00
0.45 1.00
0.36 1.00
A
d/S
SCU
R
R
=
ac
dc
ρ
----------------------- -
/
100
to
R
depth S,
Figure
N
S
Equation 18
Skin
mils
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
S
L
Doc ID 13127 Rev 4
t
=
d
50 kHz
0.0096
6.
s
=
6.43
5.08
4.04
3.20
2.54
2.02
1.60
1.27
1.00
0.80
0.84
0.50
d/S
0.05 cm
and
[
1.55
1.54
1.25
1.15
1.05
1.00
1.00
1.00
1.00
1.00
1.00
1.00
R
R
ac
dc
Table
/
]
3 in parallel
depth S,
Skin
mils
8.97
8.97
8.97
8.97
8.97
8.97
8.97
8.97
8.97
8.97
8.97
8.97
2, it can be determined that:
[
cm
100 kHz
2
]
⇒
9.10 2.55
7.21 2.00
5.72 1.70
4.54 1.40
3.60 1.25
2.85 1.10
2.26 1.04
1.79 1.00
1.42 1.00
1.13 1.00
0.90 1.00
0.71 1.00
d/S
d
s
=
R
0.011 cm
R
ac
dc
/
[
depth S,
Skin
mils
6.34
6.34
6.34
6.34
6.34
6.34
6.34
6.34
6.34
6.34
6.34
6.34
]
200 kHz
12.87 3.50
10.21 2.90
8.09
6.42
5.09
4.04
3.20
2.54
2.00
1.59
1.28
1.01
d/S
AN2495
2.30
1.85
1.54
1.30
1.15
1.05
1.00
1.00
1.00
1.00
R
R
ac
dc
/