N3856V Datasheet

N3856V Synchronous Rectification Controller

The N3856 is a low cost , high efficiency, full featured ,synchronous re ctification control ler that specifically des igned for the synchronous rectification applications of the Flyback AC/DC PWM mode switching power supply . The N3856 is included a totem pole output ideally suited for driving a sy.

Features

▲High efficiency operating. ▲Adjustable Max. duty cycle designed. ▲Decrease areas of heatsink or PCB. ▲Solved heat dissipation. ▲Sensitive current detecter(about 20mV) ▲Suited for continuous and discontinuous mode operation. ▲Auto frequency tracking with PWM frequency. ▲Suited for fixed or variable frequency ▲SOIC-8 and DIP-8 package. APPLICATION
■Flyback AC/DC power supply DEVICE SELECTION GUIDE DIP- 8 N3856PG SOIC- 8 N3856VG ABSOLUTE MAXIMUM RATING PARAMETERS SYMBOL Vcc to GND Surge Voltage of VCC(below 200nS) Drain to Other Pin Power Dissipation at Ta = 25¢J ,Derate 8mW/¢J Operating Junc.