HLW8110

The HLW8110 is an energy metering IC. Equivalent products include:
- ADE7755 (Analog Devices)
- CS5460A (Cirrus Logic)
- MCP3909 (Microchip)
- RN8209 (Richtek)
These chips offer similar functions like active/reactive energy measurement, current/voltage sensing, and SPI/I2C interfaces. Choose based on accuracy, cost, and integration needs.

The HLW8110 is a high-precision energy metering IC with the following key features:
- Current & Voltage Sensing: Measures AC/DC current (via shunt resistor) and voltage.
- High Accuracy: ±0.5% error over dynamic range.
- Power Calculation: Active, reactive, and apparent power measurement.
- Energy Pulse Output: CF pin provides pulse output proportional to energy consumption.
- SPI/UART Interface: Flexible communication options.
- Wide Voltage Range: Supports 2.7V–5.5V supply.
- Low Power Consumption: Suitable for battery-powered devices.
- Built-in PGA (Programmable Gain Amplifier): Adjustable gain for current sensing.
- Overload & Fault Detection: Protects against abnormal conditions.
Ideal for smart plugs, energy monitors, and IoT applications.

The HLW8110 is a high-precision energy metering IC manufactured by Hi-Link Electronics (Shenzhen) Co., Ltd., a Chinese company specializing in integrated circuits for smart energy metering, power monitoring, and IoT applications.
Hi-Link Electronics focuses on developing analog and mixed-signal ICs, particularly for electricity measurement, with products widely used in smart meters, power strips, and industrial monitoring systems. The company is known for its cost-effective, low-power solutions tailored for the Chinese and global markets.
In summary:
- Manufacturer: Hi-Link Electronics (Shenzhen)
- Industry: Semiconductor/IC design (energy metering)
- Key Products: Energy measurement chips like the HLW8110.

The HLW8110 is a high-precision energy metering IC, widely used in:
1. Smart Meters – Electricity, water, and gas metering.
2. Home Automation – Energy monitoring in smart plugs and appliances.
3. Industrial Equipment – Power consumption analysis in motors and machinery.
4. Renewable Energy – Solar inverters and battery management systems.
5. EV Charging – Monitoring AC charging stations.
It supports bidirectional energy measurement, offers high accuracy, and integrates easily with MCUs, making it ideal for cost-sensitive, low-power applications.

The HLW8110 is typically available in an SOP-8 (Small Outline Package) or SOP-16 package, depending on the variant. These surface-mount packages are compact and suitable for energy metering applications. The SOP-8 version is more common for basic configurations, while the SOP-16 may offer additional features or pins. Check the datasheet for exact specifications.