SiC

The CPR560 is a residual current detection (RCD) IC designed to facilitate the implementation of Type F RCDs for household appliances such as air conditioners, washing machines, and refrigerators that use single-phase inverters, which are difficult to protect using conventional Type AC and Type A RCDs commonly found in homes. Additionally, without requiring a high-performance DSP or complex circuit modifications, it enables a cost-effective implementation of Type B RCDs, which are essential for electric vehicle chargers and solar inverters, by simply integrating basic external circuits and ICs.This IC features automatic frequency detection for 50Hz/60Hz systems and provides a powerful event log function along with a developer-friendly PC UI, simplifying debugging and monitoring. Operating within a voltage range of 3.0V to 3.6V and a temperature range of -40 to 85°C, it complies with key international safety standards, including UL943 (Type A), IEC 62423 (Type F and B), and DIN VDE 0664-100 (Type B+).With adjustable leakage current size and trip time settings, the CPR560 offers enhanced flexibility in residual current protection. It includes an application processor with a frequency analysis function dedicated to leakage current detection, utilizing Fast Fourier Transform (FFT) and Discrete Wavelet Transform (DWT) functions for fast and accurate power line frequency analysis. Additionally, it features a Built-In Self-Test (BIST) function, ensuring high reliability in safety-critical applications.For seamless integration into various systems, the CPR560 supports multiple serial communication protocols, including UART, CAN, I2C, and SPI. It also incorporates an up to 16-bit DSM (Delta-Sigma Modulation) ADC, enabling high-precision current sensing and analysis. These features make it a versatile and robust solution for advanced residual current protection applications across multiple industries