AN3233 datasheet(32/35 Pages) STMICROELECTRONICS

Teilenummer	AN3233

Bauteilbeschribung	This application note describes the characteristics

PDF	35 Pages

Scroll/Zoom	100%

Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

32 / 35 page

Transformer specifications

AN3233

32/35

Doc ID 17595 Rev 1

Transformer specifications

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. With EN60065.

Electrical characteristics

●

Converter topology: half bridge, resonant

●

Core type: ETD34-PC44 or equivalent

●

Min. operating frequency: 60 kHz

●

Typical operating frequency: 100 kHz

●

Primary inductance: 800 µH ±10 % at 1 kHz-0.25 V(b)

●

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

Electrical diagram and winding characteristics

Measured between pins 2-4

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

Figure 27.

Transformer electrical diagram

AN3233 Datenblatt(PDF) 32 Page - STMicroelectronics