Maxim Integrated MAX17040G+T Fuel Gauge IC

The MAX17040G+T from Maxim Integrated is a compact, low-power fuel gauge Integrated Circuit (IC) designed for lithium-ion (Li+) batteries in handheld and portable devices. It employs Maxim's proprietary ModelGauge™ algorithm, which eliminates the need for battery characterization for most applications. This advanced fuel gauge provides a robust solution for power management and monitoring, ensuring users have accurate data on their battery's state of charge (SoC).

Key Features

• High Precision: Offers accurate SoC estimation without requiring an external sense resistor, simplifying design and reducing system cost.
• ModelGauge Algorithm: The ModelGauge algorithm combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, along with temperature compensation.
• Low Power Consumption: With its ultra-low operating current, the MAX17040G+T is ideal for battery-powered applications where efficiency is critical.
• Simple Interface: Communicates with the host device via a simple 2-wire I2C interface, allowing for easy integration into system designs.
• Compact Package: Available in a tiny, lead-free 8-pin TDFN package, it is suitable for space-constrained applications.

Applications

• Smartphones and Tablets
• Portable Media Players
• Digital Cameras
• Other Handheld Devices

The MAX17040G+T operates over a wide voltage range of 2.5V to 5.5V, making it versatile for various battery configurations. Its QuickStart feature allows the fuel gauge to begin without a host command, enabling immediate SoC readings after battery insertion. The device also supports a range of battery sizes without the need for reprogramming, offering design flexibility for different product lines.

With its blend of accuracy, efficiency, and ease of use, the MAX17040G+T from Maxim Integrated is an excellent choice for designers looking to enhance the user experience by providing reliable battery status information. Its advanced features ensure that it is capable of meeting the demands of modern portable electronics, where battery life and management are of paramount importance.