SLVUDN1 December 2025
This section shows typical switching waveforms at different load conditions. Ch1 - Output Voltage, Ch2 - Bulk Capacitor Voltage, Ch3 - Switch Node Voltage, and Ch4 - FB pin Voltage
Figure 3-34 230Vac/1W (250khz Burst
Frequency/ Vfb - 0.29V)
Figure 3-36 230Vac/12W (68kHz
Frequency/ Vfb - 0.76V)
Figure 3-38 230Vac/30W (102kHz
Frequency/ Vfb - 1.21V)
Figure 3-35 230Vac/4.3W (25kHz
Switching Frequency/ Frequency - Foldback Mode/ Vfb - 0.47V)
Figure 3-37 230Vac/18W (99kHz
Frequency/ Vfb - 0.98V)
Figure 3-39 230Vac/45W (128kHz
Frequency/ Vfb - 1.26V)