DESCRIPTION
If the main power drops from 220V to 110V, the triac control remains locked to the 220V mode and avoids any high voltage spike when the voltage is restored to 220V. When connected to VDD, the mode input desactivates this option. s The TRIAC is specially designed for this application. An optimization between sensitivity and dynamic parameters of the triac gate highly reduces the losses of supply resistor and allows excellent immunity against disturbances. PIN CONNECTION VSS 1 Osc / In 2 Osc / Out 3 VDD 4 8 VM 7 Mode 6 N.C. 5 VG January 2002 - Ed: 3C 1/7 AVS08 BLOCK DIAGRAM AVS1BCP08 MODE OSC/IN OSC/OUT Supply Reset Peak Voltage Parasitic Detector Filter Zero Crossing Detector Oscillator Mains mode CP Controller Q S Triggering Q CP Time Controller AVS08CB or AVS08CBI A2 A1 ABSOLUTE MAXIMUM RATINGS
CONTROLLER AVS1BCP08 Symbol VSS VI / VO II / IO Tstg Toper Parameter Supply voltage I / O voltage I / O current Storage Temperature Operating Temperature code ''C'' Value Unit Min.
STMicroelectronics
