MAX17311G+T

Overview

The MAX17311G+T is a standalone, pack-side fuel gauge IC designed for single-cell lithium-ion or lithium-polymer batteries. It integrates the ModelGauge m5 algorithm to provide high-accuracy state-of-charge measurements by combining coulomb counting with voltage-based tracking. The device includes an integrated protector that monitors voltage, current, and temperature to prevent unsafe operating conditions such as overvoltage, undervoltage, overcurrent, short-circuit, and thermal extremes. It features SHA-256 authentication with a unique 64-bit ID to prevent battery pack cloning.

Feature Summary

• Integrates ModelGauge m5 algorithm for accurate state-of-charge calculation across varying temperatures and discharge rates
• Includes built-in protector functionality using external high-side N-FETs for comprehensive battery safety management
• Features SHA-256 authentication with a unique 64-bit identification number to secure battery pack integrity

Applications

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

Procurement Notes

Verify the specific suffix 'G' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required I2C or 1-Wire interface configuration for your system design. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement.

Selection Notes

Select this component when precise state-of-charge monitoring is critical for single-cell Li-Ion or Li-Po applications. It is suitable for designs requiring integrated protection logic without external microcontroller intervention for basic safety thresholds. Consider the available package options, such as TDFN or WLP, based on board space constraints and thermal requirements.

Part Context

This part belongs to the MAX17301–MAX17313 series of ModelGauge m5 EZ Fuel Gauges. These devices are engineered for portable electronics where battery life extension and safety are paramount. The series supports both standard communication interfaces and optional security features, making it adaptable for various consumer and industrial handheld applications.

Replacement Considerations

The MAX17301G+T and MAX17303G+T are confirmed substitutes within the same product family offering similar fuel gauge and protection capabilities.