BL0940

The BL0940 is a single-phase energy metering IC designed for accurate active energy measurement in power monitoring applications. It features high precision, low power consumption, and supports shunt current sensing. Key characteristics include:
- Measurement Accuracy: Complies with IEC 62053-21 standards.
- Communication: Supports UART or SPI for data output.
- Integrated Functions: Includes voltage and current measurement, power calculation, and tamper detection.
- Low Power: Suitable for battery-powered devices.
- Applications: Smart plugs, energy meters, IoT power monitoring.
The BL0940 simplifies energy metering designs with minimal external components, making it cost-effective for residential and industrial use. For detailed specifications, refer to the datasheet.

The BL0940 is an energy metering IC. Equivalent products include:
- ADE7755 (Analog Devices)
- CS5460A (Cirrus Logic)
- MCP3909 (Microchip)
- HLW8012 (Hi-Link)
These chips offer similar functions like power measurement and energy calculation. Check datasheets for exact compatibility.

The BL0940 is an energy metering IC designed for accurate measurement of active, reactive, and apparent energy in single-phase systems. Key features include:
- High Accuracy: Meets IEC 62053/ANSI C12.20 standards.
- Low Power Consumption: Optimized for energy-efficient applications.
- Multi-Parameter Measurement: Measures voltage, current, active/reactive/apparent power, power factor, and frequency.
- On-Chip Digital Integration: Includes a 24-bit sigma-delta ADC and DSP for signal processing.
- Communication Interfaces: Supports UART, SPI, or I²C for data output.
- Tamper Detection: Built-in anti-tamper features for reliability.
- Wide Operating Range: Works with 3.3V or 5V supply voltages.
- Compact Package: Available in SOP-8 or SOP-16 packages.
Ideal for smart meters, power monitoring, and IoT energy management systems.

The BL0940 is a single-phase energy metering IC manufactured by Belling, a Chinese semiconductor company specializing in energy measurement and power management solutions. Belling is known for producing cost-effective, high-performance ICs for smart meters, home appliances, and industrial applications. The company focuses on analog and mixed-signal ICs, with a strong presence in the domestic and international markets.
Founded in 2000, Belling (Shanghai Belling Corp., Ltd.) is a publicly listed company (SHA: 600171) and a key player in China's semiconductor industry. Its products include metering chips, power management ICs, and MCUs, widely used in energy monitoring and IoT devices.
Key Points:
- Manufacturer: Belling (Shanghai Belling Corp., Ltd.)
- Industry: Semiconductor (energy metering & power management)
- Founded: 2000
- Market Focus: Smart meters, appliances, industrial applications
- Notable Products: BL0940, BL0937, BL6503 series
Belling competes with global brands like Texas Instruments and Analog Devices in the energy metering segment.

The BL0940 is a single-phase energy metering IC primarily used for:
1. Smart Meters – Measures electricity consumption in residential and industrial settings.
2. Home Appliances – Monitors power usage in devices like air conditioners and refrigerators.
3. Energy Management Systems – Tracks and optimizes power distribution in smart grids.
4. IoT Devices – Integrates into IoT-based energy monitoring solutions.
5. Industrial Automation – Provides real-time power data for machinery efficiency.
It supports high accuracy, tamper detection, and UART/SPI communication, making it suitable for cost-effective, low-power metering applications.

The BL0940 is typically available in a SOP-8 (Small Outline Package) or SSOP-16 package, depending on the variant. These compact surface-mount packages are suitable for energy metering and power measurement applications. The SOP-8 is more common, offering a balance of size and functionality. Check the datasheet for exact specifications.