◆ 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
1.218V(typical)
 On-chip oscillator as clock source,
2MHz(typical)
 Single 3.3V supply, low power (6 mW
typical)
 SOP8

DESCRIPTION
BL0937 is a wide range of single-phase
multi-function energy meter IC for
single-phase socket, Smart Appliance, with a
low cost and high accuracy.
BL0937 integrates two high-accuracy
Sigma-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, power strip,
smart appliances and others.
Interrelated patents are pending.