As AI glasses evolve to become lighter, smarter, and more stylish, the market is growing rapidly. According to Sigmaintell, global shipments are expected to reach 5.7 million units by 2025, representing an annual growth rate of 110%. Over the next five years, the market will maintain a 19% CAGR, surpassing 13.6 million units, signaling a shift from concept to mass adoption.

With the rise of AI glasses, smartphones, tablets, drones, and other smart devices, power management has become crucial for product performance. Efficient and precise battery monitoring extends battery life, ensures safety, and enhances the user experience.

To address the need for high precision, low power consumption, and long battery life, Geehy introduces a single-cell battery fuel gauge solution based on the BMP561 single-cell battery monitoring IC. This solution supports accurate battery monitoring, intelligent charging management, and system-level optimization. It simplifies hardware design, lowers BOM costs, and improves overall system reliability.

BMP561 Single-Cell Fuel Gauge Solution

Geehy’s BMP561 solution delivers low power consumption, high reliability, and cost-effectiveness. It supports single-cell battery monitoring, capacity estimation, and I²C communication, making it ideal for applications such as AI glasses, smartphones, tablets, laptops, smart bands, smartwatches, and POS terminals.

The solution comprises two key components:

• BMP561 Chip: Integrates high-precision ADCs for current and voltage sampling, and performs real-time capacity estimation.
• Protection Circuit: Provides undervoltage, overvoltage, overcurrent, and short-circuit protection.

Solution Advantages

• High Accuracy: Features 16-bit V-ADC and C-ADC with software-based Coulomb counting for precise voltage and current sampling, enabling accurate capacity calculation.
• Low Power Consumption: Operates at 18 μA @ 25°C in deep sleep mode, with intelligent sleep mechanisms to significantly extend battery life.
• High Reliability: Built-in algorithms adapt to different battery profiles. Optimized sampling and power modes enhance SOC accuracy and system stability.

BMP561 Chip Features

• 32-bit Arm® Cortex®-M0+ core for real-time battery status processing and autonomous capacity updates—no external MCU required.
• Dual 16-bit ADCs for voltage and current sampling, delivering critical data for accurate fuel gauging.
• I²C interface for external communication.
• HMAC-SHA256 accelerator for battery-side authentication.

As an essential component of advanced battery management, Geehy’s BMP561 single-cell battery fuel gauge drives smarter, safer, and more accurate energy solutions. It comes with a PC-based GUI for visual debugging, parameter tuning, and firmware updates, supporting both online and offline modes. The complete development ecosystem includes technical documents, software/hardware tools, and localized support to accelerate design and streamline mass production.