ACST2 - STMicroelectronics

ACST2 Overvoltage protected AC switch

The ACST2 series belongs to the ACS / ACST power switch family. This high performance device is suited to home appliances or industrial systems and drives loads up to 2 A. This ACST2 switch embeds a Triac structure with a high voltage clamping device to absorb the inductive turn-off energy and withstand line transients such as those described in the IEC 6100.

Features

• Triac with overvoltage crowbar technology
• High noise immunity: static dV/dt > 500 V/μs
• TO-220FPAB insulated package:
  – complies with UL standards (File ref : E81734)
  – insulation voltage: 2000 VRMS
• Benefits:
  – Enables equipment to meet IEC 61000-4-5
  – High off-state reliability with planar technology
  – Needs no external overvoltage protection
  – Reduces the power passive component count
  – Interfaces directly with the micro-controller
  – High immunity against fast transients described in IEC 61000-4-4 standards Applications
• AC mains static switching in appliance and industrial control s.