Maxim Integrated MAX17047 Fuel Gauge IC

The Maxim Integrated MAX17047 is a compact, low-power fuel gauge Integrated Circuit (IC) designed for single-cell lithium-ion (Li+) batteries in a wide range of portable devices. This advanced fuel gauge employs the proprietary ModelGauge™ algorithm which eliminates the need for battery relearn cycles and simplifies the battery characterization process. The MAX17047 provides high accuracy in measuring state of charge (SOC) of the battery, thus ensuring optimal battery management and prolonging the life of the battery.

One of the key features of the MAX17047 is its sophisticated algorithm that 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 to provide a robust SOC estimation. This ModelGauge m3 algorithm does not require an external sense resistor and provides a smooth SOC profile, which significantly improves the user experience by providing more consistent and reliable battery status information.

The MAX17047 is capable of operating across a wide voltage range of 2.5V to 5.5V, making it versatile for various applications. It communicates via an I2C interface, allowing for easy integration into existing designs. Additionally, it features a QuickStart mode that requires minimal configuration and simplifies the startup process.

For enhanced safety and protection, the MAX17047 includes an adjustable overvoltage protection threshold. This feature ensures that the connected battery is safeguarded against voltage spikes beyond its safe operating area. Furthermore, the IC is available in a tiny, lead-free 8-pin TDFN package or a 9-bump WLP, which is ideal for space-constrained applications.

Overall, the Maxim Integrated MAX17047 is a reliable and precise solution for battery fuel gauging, offering ease of use and integration, making it an excellent choice for designers looking to enhance the performance and user experience of their portable devices.