International Rectifier IRMCK171 mixed-signal IC

International Rectifier says that its IRMCK171 one-time programmable ROM-based monolithic, mixed-signal IC for sensorless sinusoidal motor control of appliances now meets the standards of IMQ (Italy) Annex R of IEC 60335-1 Edition 4.2 - Class B software requirements.

The certification allows even further simplification and acceleration of the design process for home appliances by reducing elements of the software testing process. The certification also enables users to more easily obtain the safety standard of their appliance products, which is a mandatory requirement for today's home appliances.

The device, part of the iMOTION integrated design platform for variable speed motor control, incorporates the company's motion control engine, an algorithm editor that eliminates coding. A co-integrated 60MIPS, 8-bit, 8051 microcontroller enables application layer software development, operating almost independently of the MCE and does not compete for system resources such as interrupts or internal registers.

The embedded analog signal engine integrates all the signal conditioning and conversion circuits required for single current shunt, sensorless control of a PM motor.