IL33193-03 Overview
Vbat IL33193-03 Relay Relay on off t1 tn Relay off Fn=1/tn Time Fig. Normal Operation Oscillator Timing Diagram tf Ft=1/tf Time Fig. One Defective Lamp Oscillator Timing Diagram Supply and Protection Systems Pin 1 is connected to ground via resistor R2 which limits the current in the event of any high voltage transients.