Description
The integrated circuit, T2117, 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 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
   Typically 100 mA – Short-circuit Protected
• Simple Power Control
• Ramp Generator
• Reference Voltage

Applications
• Full-wave Power Control
• Temperature Regulation
• Power Blinking Switch