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AN4026 Datasheet(PDF) 37 Page - STMicroelectronics

Part # AN4026
Description  using the L6563H and L6699
PDF  40 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4026 Datasheet(HTML) 37 Page - STMicroelectronics

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AN4026
Transformer specifications
Doc ID 022603 Rev 1
37/40
9
Transformer specifications
9.1
General description and characteristics
●
Application type: consumer, home appliance
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Transformer type: open
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Coil former: horizontal type, 7+7 pins, two slots
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Max. temperature rise: 45 ºC
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Max. operating ambient temperature: 60 ºC
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Mains insulation: acc. to EN60065.
9.2
Electrical characteristics
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Converter topology: half bridge, resonant
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Core type: ETD34-PC44 or equivalent
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Min. operating frequency: 60 kHz
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Typical operating frequency: 90 kHz
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Primary inductance: 2.00 mH ± 10% at 1 kHz - 0.25 V(b)
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Leakage inductance: 300 µH at 100 kHz - 0.25 V(c).
9.3
Electrical diagram and winding characteristics
Figure 32.
Transformer electrical diagram
b.
Measured between pins 2-4.
c.
Measured between pins 2-4 with only one secondary winding shorted.



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