Product Details
Product Description
Product Description
Description:
BL0942 is a specialized chip for power measurement in the field of Internet of Things (IoT) developed by Shanghai Belling Co.It has the advantages of small size (SSOP10L/TSSOP14 package), simple peripheral circuit and low cost.
Features:
Two independent Sigma-Delta ADCs, one current and one voltage.
Current RMS range (10mA~35A) @1mohm
Active power (1w~7700w)@1mohm
Measures current and voltage RMS, fast current RMS, active power, current and voltage waveforms
Batch factory gain error is less than 1%, peripheral components to meet certain conditions can be calibration-free
Current channel with over-current monitoring function, monitoring threshold and response time can be set
Voltage/current zero signal output
Built-in waveform register, waveform data can be output for load type analysis.
Integrated SPI (the fastest rate support 900KHz) / UART (4800-38400bps) communication mode
Power-down monitoring, below 2.7V, the chip enters the reset state.
Built-in 1.218V reference voltage source
Built-in oscillation circuit, clock about 4MHz
Chip single working power supply 3.3V, low power consumption 10mW (typical)
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