SSP1837 SMD IC Energy Metering SOP8 SSP1837

Product Overview:
A surface-mount, single-phase multi-function energy meter integrated circuit designed for low-cost, high-accuracy energy measurement in applications such as single-phase sockets, power strips, and smart appliances. It integrates two high-accuracy Sigma-Delta ADCs, a voltage reference, power management modules, and a digital signal processing (DSP) core to seamlessly calculate active power, current 

Core Specifications:

Manufacturer: Shanghai Siproin Microelectronics Co., Ltd.

Package Type: SOP8

Function: Single Phase Multi-Function Energy Meter IC

Input Channels: 1 Differential Current Channel (IP, IN) and 1 Voltage Channel (VP)

Control Interface: Pin-Controlled Logic / Pulse Output Interface (SEL Input, CF/CF1 Pulse Outputs)

Features:

* High measurement accuracy with less than $\pm0.5\%$ error across a wide dynamic range of 2500:1
* High signal stability: less than $\pm0.2\%$ frequency fluctuation error under a large 300mA signal, and less than $\pm0.3\%$ error under a small 50mA signal
* Wide current measurement support from 4mA to 30A using a 1mΩ shunt resistor
* Integrated on-chip anti-creep protection to remove noise power readings when no current is running
* Built-in power supply detector that automatically places the chip into a reset state if operating voltage drops below 2.7V
* Internal stable voltage reference source of 1.2V (typical)
* On-chip oscillator clock source running at approximately 2 MHz, eliminating the need for an external crystal
* Energy-efficient design with a single 3.3V power supply requirement (3.0V to 3.6V operational range) and a low 8 mW typical power consumption
* Dual high-frequency pulse outputs (CF and CF1) featuring a fixed 38µs pulse width, where the output frequencies are directly proportional to active power, current RMS, or voltage RMS
* Multi-functional CF pin configuration that switches to an outputting 7.17kHz pulse to indicate an over-current condition

Applications:

* Electric utility instrumentation and sub-metering devices
* Intelligent power sockets and smart power strips
* Intelligent circuit breakers and electrical safety devices
* Smart household appliances and residential load monitoring
* Intelligent electric energy acquisition terminals