NCP1612GEVB ON Semiconductor

NCP1612GEVB 160-W, Wide Mains, PFC Stage Driven by the NCP1612 Evaluation Board User s Manual + NCP1612GEVB THE BOARD Figure 1. A Slim Board (Height < 13 mm) APPLICATION SCHEMATIC V in U1 D2 GBU606 L2 D1 Rth1 1N5406 200 H (np/ns=10) MUR550 B57153S150M . + C4 . C5 220nF IN Type = X2 470 nF / 400 V V aux R2 1000k V line R1 1000k R6 22 DRV C1 1 nF Type = Y2 D3 R5 1N4148 2.2 Q1 IPA50R250 V bulk C2 Q2 R4 CM1 1 nF MMBT589LT1G 10k Type = Y2 I sense R3 80m 3W C6a C6b L1 68F/450V 68F/450V 150 H GND C3 680nF Type = X2 C7 DZ2 D4 22F/50V 33V 1N4148 F1 V CC L N Earth Socket for 90265 Vrms External VCC Power Source Figure 2. Application Schematic Power Section If an external V voltage is applied to the board (as case, unplug the PFC stage to recover operation. In all CC allowed by the socket for external V power sourcing), events, do not apply more than 33 V to the V socket not CC CC it should be noted that the NCP1612 latches off if this to exceed the DZ reverse ZENER voltage (see Figure 2). 2 voltage exceeds about 30 V (see pfcOK section). In this