Maxim Integrated's MAX1726EUK50 Fuel Gauge IC

The MAX1726EUK50 is a high-precision fuel gauge integrated circuit from Maxim Integrated, designed to provide accurate battery state-of-charge (SOC) monitoring for portable devices. This compact, power-efficient IC is ideal for a wide range of applications, including smartphones, tablets, laptops, and other battery-powered electronics that require reliable battery status information.

Key Features

• Accurate SOC Estimation: The MAX1726EUK50 utilizes the ModelGauge™ algorithm to eliminate the need for battery characterization, providing high-accuracy SOC estimation without requiring periodic full-to-empty recalibration.
• Low Quiescent Current: With an ultra-low quiescent current, the device helps maximize battery life, making it particularly suitable for energy-sensitive applications.
• Easy to Implement: The IC comes in a small TDFN package, making it easy to integrate into space-constrained designs. It also requires minimal external components, simplifying the design process.
• Configurable Alert Function: An alert function can be programmed to notify the host when the battery falls below a user-defined threshold, enhancing device safety and user experience.
• I2C Interface: The MAX1726EUK50 features an I2C interface for communication with the host system, allowing for easy integration with a microcontroller or processor.

Technical Specifications

• Operating Voltage Range: 2.7V to 4.5V, accommodating a variety of single-cell Li-ion batteries.
• Package Type: 5-Pin SOT23 (TDFN).
• Operating Temperature Range: -40°C to +85°C, ensuring reliable performance across a wide range of environmental conditions.

The MAX1726EUK50 is a testament to Maxim Integrated's commitment to innovation and quality in power management technology. By providing precise battery monitoring capabilities, this fuel gauge IC empowers designers to create more reliable and user-friendly portable devices. Whether for personal electronics, medical devices, or IoT applications, the MAX1726EUK50 offers a versatile solution for battery SOC estimation that is both accurate and efficient.