STEVAL-ISA019V2 STMicroelectronics, STEVAL-ISA019V2 Datasheet - Page 8

• 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

8/34
Flyback stage design
Figure 4.
Concerning the gap, from the EPCOS datasheet, we can use the following approximate
formula:
Equation 12
K
Knowing that L
Equation 13
Hence:
1
= 153, K
l
g
=
2
gaplenght
Dynamic magnetization curves
= -0.713, while A
p
= 1.56mH and N
=
⎛
⎝
108
--------- -
153
⎞
⎠
L
----------------- -
–
Doc ID 13127 Rev 4
0.713
has to be calculated.
1
A
p
L
l
g
= 120,
=
=
=
1.63mm
--------- -
N
gaplenght
L
2
P
P
=
1.56m
---------------- -
120
2
=
=
⎛
⎝
A
------
K
108nH
L
1
⎞
⎠
----- -
K
1
2
AN2495