Siproin SSP1842

SSP1842 is a built-in clock calibration-free energy metering IC, which is suitable for single-phase multi-function electricity meters, smart sockets, smart home appliances and other applications, with more cost-efficient solution. SSP1842 integrates 2 high-precision Sigma-Delta ADC to measure current and voltage simultaneously. Reference voltage, power management and other analog circuit modules, and processing active power, current and voltage RMS electrical parameters digital signal processing circuit. SSP1842 can measure electric parameters such as current and voltage RMS, active power, active energy, fast current RMS (for over-current protection), and waveform output and so on. SSP1842 output data through the UART/SPI interface. It is available for the smart socket, smart appliances, single-phase multi-function power meter and information requirement of data acquisition in electricity applications. SSP1842 has a patented anti-creep design, which can be combined with reasonable external hardware design to ensure that the noise energy cannot be calculated in the energy pulse when there is no load.

• Two independent Sigma-Delta ADC, one current and one voltage
• Current RMS range [10mA ~ 30A) @ 1mOhm
• The range of Active energy (1w ~ 6600w) @ 1mohm @ 220V
• Measure current, voltage RMS, fast current RMS, active power
• The batch factory gain error is less than 1%, and the peripheral components can be free of calibration under certain conditions
• The current channel support over-current monitoring function, the threshold and response time can be configured
• Voltage/current zero-crossing logic output
• Built-in waveform register, provide sampled waveform data for load type analysis
• SPI (maximum speed 900kHz)/ UART (4800 ~ 38400bps) communication
• On-chip power supply monitoring, IC reset when VDD is lower than 2.7V(typical)
• On-chip reference 1.218v(typical)
• On-chip 4MHz oscillator circuit
• Single 3.3V supply, low power consumption 10mW (typical)
• Package: SSOP10L

• single-phase multi-function electricity meters
• smart sockets
• smart home appliances