Datasheet

AN3329 Auxiliary flyback transformer specifications
Doc ID 18376 Rev 1 43/47
9 Auxiliary flyback transformer specifications
General description and characteristics
● Application type: consumer, home appliance
● Transformer type: open
● Winding type: layer
● Coil former: horizontal type, 4+5 pins, two slots
● Max. temp. rise: 45 ºC
● Max. operating ambient temperature: 60 ºC
● Mains insulation: acc. to EN60950
● Unit finishing: varnished
Electrical characteristics
● Converter topology: flyback, CCM/DCM mode
● Core type: E20-PC44 or equivalent
● Typical operating frequency: 60 kHz
● Primary inductance: 2.380 mH ± 10 % at 1 kHz - 0.25 V
(d)
●
Leakage inductance: 30 µH at 50 kHz - 0.25 V
(e)
●
Max. peak primary current: 0.5 Apk
● RMS primary current: 0.17 Arms
DC output characteristics
● Converter topology: flyback, CCM/DCM mode
d. Measured between pins 4-5.
e. Measured between pins 2-4 with secondary windings with same polarity shorted at time.
Table 5. DC output voltage and load
DC output voltage DC load
5 V 2 A
DC
16 V 0.05 A
DC