L121A

LINEAR INTEGRATED CIRCUIT TRIAC/SCR BURST CONTROL The L 121 A is a monolithic integrated circuit in 16-lead dual in-line plastic packa!je. It incorporates the following functions: AC supply 50/60 Hz Zero-voltage detector Ramp generator Inhibition of casual firing pulses Stabilization of the internal positive DC supply High gain operational amplifier Output short-circuit protection The L 121A is intended for use as a burst controller in industrial and consumer applications. ABSOLUTE MAXIMUM RATINGS 19 I Db ID2 V 14 V S- 12 V 10-12 V 1_2 V 3 -5 Ptot Tstg Top AC Peak supply current Input diodes peak current Maximum voltage (pin 14) Positive clamp voltage Negative clamp voltage Differential input voltage Differential input voltage Total power dissipation at Tamb = 85°C Storage temperatu re Operating junction temperature 60 1 20 15 15 ±7 ±8 800 -55 to 150 -25 to 150 mA A V V V V V mW °C °C ORDERING NUMBER: L 121AB MECHANICAL DATA Dimensions in mm 41 6/82 CONNECTION DIAGRAM (t...