AN4027 datasheet(37/41 Pages) STMICROELECTRONICS

Part #	AN4027

Description	This application note describes the EVL6699-150W-SR demonstration

PDF	41 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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37 / 41 page

DocID022604 Rev 3

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AN4027

Transformer specifications

9.1

General description and characteristics



Application type: consumer, home appliance



Transformer type: open



Coil former: horizontal type, 7 + 7 pins, two slots



Max. temp. rise: 45 ºC



Max. operating ambient temperature: 60 ºC



Mains insulation: acc. to EN60065.

9.2

Electrical characteristics



Converter topology: half bridge, resonant



Core Type: ETD34-PC44 or equivalent



Min. operating frequency: 60 kHz



Typical operating frequency: 100k Hz



Primary inductance: 1000 µH ± 10% at 1 kHz - 0.25 V(b)



Leakage inductance: 100 µH ± 10% at 100 kHz - 0.25 V(c).

9.3

Electrical diagram and winding characteristics

Figure 35. Transformer electrical diagram

b. Measured between pins 2 - 4.

c. Measured between pins 2 - 4 with only half secondary winding shorted at a time.

AM11637v1

AN4027 Datasheet(PDF) 37 Page - STMicroelectronics