MAX17261METD+

Overview

The MAX17261METD+T is a single-cell lithium-ion battery fuel gauge IC from the ModelGauge m5 EZ family. It operates within a supply voltage range of 2.7V to 5.5V and features an I2C interface for data communication. The device utilizes a proprietary algorithm to provide accurate state-of-charge (SOC) and remaining capacity readings without requiring complex battery characterization. It supports optional high-side current sensing for enhanced coulomb counting accuracy.

Feature Summary

• Implements ModelGauge m5 EZ algorithm for precise state-of-charge estimation
• Supports optional high-side current sensing for improved coulomb counting
• Features low quiescent current consumption for extended battery life
• Provides digital output via standard I2C interface

Applications

• Lithium-ion battery pack monitoring in portable electronics
• Smartphone and tablet battery management systems
• Wearable health devices requiring accurate runtime prediction
• Medical equipment with strict power management requirements

Procurement Notes

Verify the specific suffix 'METD+T' against the manufacturer's official datasheet to confirm package type, temperature grade, and tape-and-reel specifications. Ensure compatibility with existing I2C bus configurations and validate that the ModelGauge m5 EZ calibration parameters match the target battery cell chemistry for optimal performance.

Selection Notes

Select this component when high accuracy is required for single-cell lithium batteries without extensive pre-characterization. It is suitable for applications where low standby current and compact footprint are critical. Compare against the MAX17260 if internal current sensing is preferred over external high-side sensing solutions.

Part Context

This part belongs to the Maxim Integrated ModelGauge m5 EZ series, designed to simplify battery fuel gauging. It replaces older generations like the MAX17047 by offering improved accuracy and lower power consumption. The METD+T designation indicates a specific surface-mount package variant intended for automated assembly processes.

Replacement Considerations

The MAX17260SETD+T is a direct functional substitute within the same family, differing primarily in the integration of the current sense amplifier. Verify pinout compatibility and software configuration differences before substitution.