EVALSF3-ICE3B2065P Infineon Technologies, EVALSF3-ICE3B2065P Datasheet - Page 17

• Manufacturer Part Number: EVALSF3-ICE3B2065P
• Description: BOARD DEMO ICE3B2065P 40W SMPS
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r

Specifications of EVALSF3-ICE3B2065P

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 40W
• Voltage - Output: 18V
• Current - Output: 2.22A
• Voltage - Input: 85 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 67kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ICE3B2065
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: EVALSF3-ICE3B2065PIN

10.3
As Vfb went below 1.3V and right after the blanking period, i.e. Vsofts charge from 4.4V to 5.4V, controller
enters active burst mode. The blanking period here is to prevent false triggering of burst mode. The blanking
time is around 32ms.
Ch1 : Vds, Ch2 : Vcc, Ch3 : V
Figure 13 – Enter active burst mode @ 85Vac, step
from 40W to 0W load
10.4
Controller returns to normal mode once Vfb hit 4.8V.
Ch1 : Vds, Ch2 : Vcc, Ch3 : V
Figure 15 – Leave active burst mode @ 85Vac, step
from 0W to 40W load
Application Note
Ch1
Ch1
Ch4
Enter active burst mode (full load to zero load)
Leave active burst mode to normal mode (zero load to full load)
Ch2
Ch3
Ch4
Ch2
FB,
FB,
Ch4 : V
Ch4 : V
Ch3
SOFTS
SOFTS
40W 18V Demoboard using ICE3B2065P on board
17
Ch1 : Vds, Ch2 : Vcc, Ch3 : V
Figure 14 – Enter active burst mode @ 265Vac, step
from 40W to 0W load
Ch1 : Vds, Ch2 : Vcc, Ch3 : V
Figure 16 – Leave active burst mode @ 265Vac, step
from 0W to 40W load
Ch1
Ch1
Ch3
Ch4
Ch2
Ch4
Ch2
FB,
FB,
Ch4 : V
Ch4 : V
SOFTS
SOFTS
Ch3
2006-07-18