D D D D D D D D Standard quartz fosc = 32.768 kHz Minimum operating voltage 4.5 V/1.5 mA Pulse width, tp = 31.25 ms Power stage with current limitation: typical 150 mA Tr.

60 s 36 s 47 W 1N4148 3 R L >860W 0.22 mF 4 96 11815 1 1s 10 mF 2 8 7 U2391B 6 5 f osc = 32768 Hz GND V S = 4.75..

The monolithic integrated bipolar circuit, U2391B, is designed as a quartz controlled pulse generator. The tristate input enables the selection of different pulse period durations. The internal switch-on monitoring achieves the start up of the IC whe.

U2300B

U2305B

U2309B

U231

U232

U233

U234

U235

U2350B-FP

U2352B

U237BG

U200

U2000