Hendon Semiconductor’s power and mains phase control integrated circuit is designed to replace the now obsolete TCA280B: General Purpose Triac Triggering Integrated Circuit and other similar types of phase control circuits.
The next generation design of TCA280B is OM5428 phase control and general purpose triac triggering integrated circuit. OM5428 is designed to drive current modern high reliability; high sensitivity three quadrant triacs that uses negative triac triggering. Other features include soft start capability to eliminate the effect of high starting torque hence reducing the wear and tear of motors. This integrated circuit is primarily designed for used in phase control circuits with resistive or inductive loads. Intended for applications requiring low cost and complexity solutions The flexibility of OM5428 makes it suitable for applications such as - Phase control
- Electric motor controller
- Motor speed control
- Soft start control
- Synchronous on/off switching
- Temperature control
- Time proportional control
Other technologies have developed to perform mains power control functions, where professional levels of performance are demanded, however the OM5428 is intended for applications where cost effective, more simply achieved performance is sought. | 
