U217B Datasheet PDF - Temic

●Description

●The integrated circuit, U217B, is designed as a zero voltage switch in bipolar technology. It is used to control resistive loads at mains by a triac in zero-crossing mode. A ramp generator allows to realize power control function by period group control, whereas full wave logic guarantees that full mains cycles are used for load switching.

●Features

●Direct supply from the mains

●Current consumption ≤0.5 mA

●Very few external components

●Full wave drive – no dc current component in the load circuit

●Negative output current pulse typ. 100 mA – short circuit protected

●Simple power control

●Ramp generator

●Reference voltage

●Applications

●Full wave power control

●Temperature regulation

●Power blinking switch