MAX17020ETJ+

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The MAX17020ETJ+ is an integrated, 1-cell Li+ battery fuel gauge IC that is designed to monitor and analyze a single-cell Li+ battery charge and discharge cycles accurately and quickly. The IC utilizes a low-cost sense resistor plus a patented algorithm to give an accurate measurement of the battery’s state-of-charge (SoC) and state-of-health (SoH) and provide dynamic battery model parameters. This combination of analog and digital system components provides excellent performance and accuracy while minimally impacting board space and system cost.

The MAX17020ETJ+ is a specialty Power Management IC (PMIC) intended for applications where an accurate and reliable assessment of battery capacity and health is required. The applications that benefit from employing the MAX17020ETJ+ include wearable and IoT devices, remote monitoring and control systems, gaming, audio and security systems, and medical application. The MAX17020ETJ+ has also been proven to provide excellent performance in battery-powered systems that require reliable and consistent operation in harsh environments.

The MAX17020ETJ+ utilizes a patented 1- resistor sense-and-store algorithm, which continuously tracks the battery’s charge and discharge cycles in real-time, enabling fast, accurate SoC and SoH reporting. This patented algorithm uses minimal components to measure the battery’s internal chemistry and parameters, allowing it to accurately calculate the battery’s SoC and SoH and provide dynamic battery model parameters. Additionally, the MAX17020ETJ+ can detect battery fault conditions and provide comprehensive diagnostics, allowing the system to accurately diagnose and report battery conditions such as short-circuits, reversed polarity and other internal battery fault conditions.

The MAX17020ETJ+ offers a variety of features, including precise voltage and current measurements, low-current sleep mode, and low-OHM reset capabilities. It also includes an onboard temperature sensor and digitally programmable I2C register based parameters to enable precise battery measurement and control. The MAX17020ETJ+ also includes programmable acceleration and deceleration thresholds, allowing accurate and precise tracking of battery charge and discharge cycles. Additionally, the IC is compatible with standard Li+ battery packs, and can automatically sense the battery chemistry, enabling it to report precise SoC and SoH for different chemistries in a single IC.

Finally, the MAX17020ETJ+ is designed to be a reliable and accurate solution for monitoring the battery’s parameters in high-reliability applications. Its ultra-low voltage operation, minimal sense resistor power requirements, and advanced sleep mode capabilities provide a low-power solution that is ideal for battery-powered applications in remote and harsh environments. Overall, the MAX17020ETJ+ offers a robust solution for monitoring and measuring the parameters of a single-cell Li+ battery and providing the user with real-time and accurate measurements for battery health and capacity.

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