BL0942SHANGHAI BELLING

The BL0942 is a calibration-free single-phase energy metering IC from Shanghai Belling, designed for smart plugs, smart sockets, smart home appliances, and IoT power monitoring devices. It integrates two high-precision Sigma-Delta ADCs, voltage reference, power management, and digital signal processing circuits to measure voltage RMS, current RMS, active power, active energy, fast current RMS, and waveform data. With UART/SPI digital interfaces, built-in oscillator, 3V-class supply operation, and compact SMT package options, the BL0942 provides a cost-effective and highly integrated metering solution for smart energy monitoring, overload protection, and connected power-control applications.