T2117 Datasheet, PDF (1/16 Pages) ATMEL Corporation – Zero-Voltage Switch with Adjustable Ramp

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
1. Description
The integrated circuit, T2117, is designed as a zero-voltage switch in bipolar technol-
ogy. 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.
Zero-voltage
Switch with
Adjustable
Ramp
T2117
Rev. 4768B–INDCO–10/05