MAX17300G+

Overview

The MAX17300G+ is a standalone, pack-side fuel gauge IC designed for single-cell lithium-ion and lithium-polymer batteries. It integrates the ModelGauge m5 algorithm to provide high-accuracy state-of-charge readings in milliampere-hours or percentage. The device monitors battery voltage, current, and temperature to enable protection against over-voltage, under-voltage, over-current, short-circuit, and thermal extremes using external high-side N-FETs. It features a 24µA typical operating current and supports 1-Wire or I2C interfaces for data access.

Feature Summary

• Integrates ModelGauge m5 algorithm combining coulomb counting with voltage-based stability for accurate state-of-charge estimation
• Provides comprehensive battery protection including over/undervoltage, overcurrent, short-circuit, and thermal safeguards via external FETs
• Supports dynamic power functionality to determine maximum instantaneous battery output power without violating system input voltage limits

Applications

• Smartphones and tablets
• Wearable devices and smartwatches
• Medical devices and health monitors
• Digital cameras and action cams
• Handheld computers and terminals

Procurement Notes

Verify the specific suffix 'G+' indicates lead-free and RoHS compliance status according to the manufacturer's official documentation. Confirm the package type matches the required PCB footprint, typically TDFN or WLP variants. Ensure the design supports the necessary 1-Wire or I2C interface protocols for communication with the host processor.

Selection Notes

Select this component when high accuracy is required for single-cell Li-ion or Li-Po packs without complex multi-cell balancing needs. It is suitable for applications demanding low quiescent current and integrated protection logic. Consider the available package options such as TDFN or WLP based on space constraints and thermal requirements of the target device.

Part Context

This part belongs to the MAX1730x/MAX1731x series of ModelGauge m5 EZ Fuel Gauges. These devices are engineered for portable electronics requiring reliable battery management. The series distinguishes itself by integrating SHA-256 authentication capabilities in specific variants to prevent battery cloning, alongside standard fuel gauging and protection functions.

Replacement Considerations

Direct replacements within the same family include the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, and MAX17313. Verify if SHA-256 authentication is required; if so, select from the MAX1731x series. If only basic fuel gauging and protection are needed, the MAX1730x series variants are appropriate substitutes.