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Energy Metering IC 7700W 14Pin TSSOP - BL0940

BL(Shanghai Belling)

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₹115.64 inc. GST
₹98.00 ex. GST
Buy 10 - 99
15% off
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30% off
₹115.64 inc. GST
₹98.00 ex. GST


BL0940 is a calibration-free energy metering chip with a built-in clock. It is suitable for applications such as single-phase multi-function energy meters, smart sockets, smart home appliances, and electric bicycle charging piles. It has a high cost performance.

  • Two independent Sigma-Delta ADCs , one current and one voltage.
  • RMS current range ( 10mA~35A ) @1mohm
  • Active energy ( 1w~7700w ) @1mohm@220V
  • Can output current, voltage RMS, fast current RMS, active power, current and voltage waveform phase angle
  • Batch factory gain error is less than 1%, and the external components can be exempted from calibration if they meet certain conditions
  • Current channel has a leakage / overcurrent monitoring function, and the monitoring threshold and response time can be set
  • Voltage zero-crossing signal output
  • Built-in waveform register, which can output waveform data for load type analysis
  • Integrated temperature sensor to meet the needs of product over-temperature monitoring high-current node preset temperature alarm, ambient temperature measurement, etc.
  • Integrated SPI ( the fastest rate supports 900KHz ) / UART ( 4800bps ) communication method
  • Power down monitoring, below 2.7V, the chip enters the reset state
  • Built-in 1.218V reference voltage source
  • Built-in oscillation circuit, the clock is about 4MHz
  • Chip single working power supply 3.3V, low power consumption 10mW ( typical value )
  • TSSOP14 encapsulation

Technical Specifications

BL(Shanghai Belling)
Number of Pins:
Surface Mount
Operating Voltage:

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.