FEATURES

High accuracy,less than±0.5%error over a dynamic range of 2500:1

High stability of large signal,in the condition of signal 300mA,less than±0.2%error in the output frequency fluctuation(CF).

High stability of small signal,in the condition of signal 50mA,less than±0.3%error in the output frequency fluctuation(CF).

Current and voltage RMS,current measurement range(4mA~30A) 1mohm

On-Chip anti-creep protection

On-Chip power supply detector

On-Chip voltage reference of 1.2V

On-chip oscillator as clock source,2MHz

Single 3.3V supply,low power(6 mWtypical)

SOP8

DESCRIPTION

BL0937 is a wide range of single-phase multi-function energy meter IC for single-phase plug,Smart Appliance,with a low cost and high accuracy.

BL0937 integrates two high-accuracySigma-Delta ADC,voltage reference,power management and other analog circuit modules,and digital signal processing circuit to calculate active power,IRMS,VRMS etc.High frequency CF1 is provided for indicating IRMS/VRMS and high frequency CF for energy metering.

BL0937 can measure the single-phase active energy,active power,current and voltage RMS and other parameters to fully meet the needs of the socket,plug row,smart appliances and others.Interrelated patents are pending.