Integrated power phototriac reduces costs and saves space

Vishay Intertechnology has introduced a new 1A integrated power phototriac developed to directly drive medium AC loads. Featuring high dv/dt to 600V/µs, the VO2223B delivers high robustness and noise isolation for industrial equipment and home appliances. The device comprises of an optically coupled phototriac driving an integrated power TRIAC in a compact DIP package. Without the requirement for an external power TRIAC, the device saves board space and reduces design costs. These benefits are magnified by its high dv/dt, which improves safety margins to eliminate demands for expensive snubber networks. Optimised for noisy environments, typical applications for the device include valve, fan motor, and pump control in water heaters, refrigerators, air conditioners, washing machines, and oven ranges, as well as intelligent light controllers, smart home thermostats, floor heating systems, and magnetic door controls.