U490B Datasheet (TEMIC Semiconductors)

U490B, One-Shot Phase Control

The monolithic integrated bipolar circuit, U490B, is a one-shot power control circuit, designed to control the thyristor which is mainly used in electric stapler devices.

The IC is preferred to realise a one-shot phase control, where any phase angle and thus any intensity of the load voltage is adju

U490B Features

* D D D D D L D1 1N4007 R1 Vmains 230 V 24 kW/ 2W R3 220 kW C3 1.5 nF Applications D Electric stapler devices Phase controlled thyristor ignition Triggering with time delay Repetition time delay Supply current x2 mA Package: DIP8, SO8 Mains supply via resistor S1 X C1 47 mF/ 10 V 8 VS 3 4 GND 9