DF04M View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
DF04M Datasheet PDF : 42 Pages
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AN1262 APPLICATION NOTE
Figure 24. Test board main waveforms under different operating conditions
A1: Idrain
Ch1: Vdrain
Vin = 100 V
Iout = 2 A
Ch1: Vdrain
A1: Idrain
Vin = 400 V
Iout = 2 A
A1: Idrain
Ch1: Vdrain
Vin = 100 V
Iout = 50 mA
A1: Idrain
Ch1: Vdrain
Vin = 400 V
Iout = 50 mA
Figure 25. Test board load transient response; effect of frequency change (left).
transition
22 ⇒ 65 kHz
Vout
transition
65 ⇒ 22 kHz
Iout
Vin = 200 V
Iout = 0.1 ↔ 0.3 A
Vout
Iout
Vin = 200 V
Iout = 0.2 ↔ 0.4 A
20 REFERENCES
[1] Lloyd H. Dixon, Jr. "Filter Inductor and Flyback Transformer Design for Switching Power Supplies", UNI-
TRODE Power Supply Design Seminar Manual, 1994 (SEM-1000)
[2]"Calculation of Transil Apparent Dynamic Resistence" (AN575)
[3]"Transistor Protection by Transil" (AN587)
[4]"Getting Familiar with the L6590 Family High-voltage Fully Integrated Power Supply" (AN1261)
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