Product Summary

The upc1394c is a swtiching regulator IC especially designed for TV sets. The upc1394c can be used for both type of TV sets, insulated type and no insulated type. The upc1394c operateds in synchronizing with the horizontal retrace pulse, so does not generates any visual noise in the picture on CRT.

Parametrics

upc1394c absolute maximum ratings: (1)supply current I8: 30mA; (2) sink of output terminal I7: 10mA; (3) input voltage of current limiter V5: 3V; (4) input voltage of ON/OFF circuit V4: V8; (5) sink of ON/OFF circuit I3: 1.5mA; (6) input voltage of duty limit circut V2: V8; (7) drain of error amplifier I13: -2 to 0mA; (8) power dissipation PD: 150mW (Ta=75°C) ; (9) operating temperature Topt: -20 to +75°C; (10) storage temperature Tstg: -40 to +125°C.

Features

upc1394c features: (1) wide range of regulating input line voltage: AC 80 to 280V; (2) The output power transistor is doubly protected by the current limitter and the shut down circuit; (3) no visual noise due to horizontal synchronous operation; (4) a terminal for remote control and etc. of the power supply is provided; (5) shut down circuit is easily restable using ON/OFF terminal; (6) low stand-by and starting current. (2mA) .

Diagrams

upc1394c block diagram