LINEAR INTEGRATED CIRCUIT
TRIAC/SCR BURST CONTROL
The L 121 A is a monolithic integrated circuit in 16-lead dual in-lin...
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...