Analog Devices Inc. MAX17260BEWL+T: A High-Precision, ModelGauge m5 EZ Fuel Gauge IC

Analog Devices Inc. presents the MAX17260BEWL+T, a cutting-edge fuel gauge integrated circuit that employs the proprietary ModelGauge™ m5 EZ algorithm to offer high-accuracy battery state-of-charge (SoC) readings. This compact, power-efficient IC is designed to enhance the user experience by providing reliable battery information for a wide range of portable devices.

The MAX17260BEWL+T operates over a wide voltage range of 2.7V to 4.5V, making it suitable for single-cell Li-ion (Li+) batteries or other battery chemistries. It is housed in a tiny, 1.4mm x 1.5mm, 9-pin WLP (Wafer-Level Package), which is ideal for space-constrained applications such as wearables, smartphones, and wireless earbuds.

This fuel gauge IC stands out with its ModelGauge m5 EZ algorithm, which eliminates the need for battery characterization for most applications. The algorithm combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, while also compensating for temperature and rate changes. This innovative approach minimizes design complexity and eases the product development cycle.

One of the key features of the MAX17260BEWL+T is its EZ configuration, which simplifies the setup process to a few simple steps without requiring the host to download a full battery model. The device also includes a robust set of protection features such as temperature measurement, alert notifications, and a programmable reset function. Furthermore, it supports I2C communication, allowing for easy integration into existing designs.

For enhanced accuracy, the MAX17260BEWL+T provides an adaptive adjustment of the charge/discharge model coefficients, which ensures that the fuel gauge remains accurate over a wide range of operating conditions, including temperature and aging effects. Additionally, the IC offers a quiescent current as low as 5.1µA in full operation and 1.5µA in hibernate mode, which is crucial for extending the battery life of portable devices.

In summary, the MAX17260BEWL+T from Analog Devices Inc. is an innovative and versatile fuel gauge IC that offers high precision, ease of use, and low power consumption, making it an excellent choice for designers looking to enhance battery performance and user satisfaction in their portable devices.