Optically isolated SCR AC-power relay with zero-cross circuitry

IXYS subsidiary Clare has made available CPC1998, a 5Arms AC solid state switch utilizing dual optically isolated power SCRs, as an integrated alternative to discrete optocoupler and Triac circuits.
CPC1998 provides a load voltage switching capability up to 800Vp. In addition the zero cross
circuitry ensures AC load switching while minimizing the generation of Radio Frequency Interference (RFI) emissions.

Optically coupled circuitry provides high noise immunity and 2500Vrms of isolation between the low voltage control and the high voltage output. Additionally, the 150Amp surge rating enables the CPC1998 to handle a variety of resistive and reactive loads. As a result, the robust CPC1998 is well suited for industrial environments where electromagnetic interference would disrupt facility operations.
The CPC1998 comes in the unique i4-PAC package pioneered by IXYS which allows Clare's Solid State Relays (SSRs) to achieve the highest load current and power ratings.
This package features a unique IXYS process in which the silicon chips are soft soldered
onto the Direct Copper Bond (DCB) ceramic substrate instead of the traditional copper
leadframe. The DCB ceramic substrate provides 2500Vrms isolation and low thermal resistance of 0.35°C/W.
Minimum input control current to the input infrared LED for switching is 5mA. Applications include: power management, motor control, heat coil control, valve and solenoid control, robotics, IT and server power supplies, medical equipment, railroad and traffic controls, consumer electronics, industrial controls, and test and measurement equipment. The CPC1998, available in the i4-PAC package, is a UL 508 Recognized component for industrial control equipment.

"This product from Clare expands the family of power SSRs that can be used with the Zilog (also an IXYS company) family of MCUs for power management applications in order to control power to loads. It is of special importance for energy saving applications to reduce the power consumption in systems by turning off the power to loads as needed," commented Dr. Nathan Zommer, CEO of IXYS Corporation.

Editorial Product Rating: ** (Average Plus)