MAX17312G+

Overview

The MAX17312G+ is a single-cell ModelGauge m5 EZ fuel gauge IC with integrated protector and SHA-256 authentication. Designed for lithium-ion/polymer batteries, it monitors voltage, current, temperature, and state of charge using the ModelGauge m5 algorithm. The device provides protection against over/undervoltage, overcurrent, short-circuit, and thermal faults via external high-side N-FETs. It features a unique 64-bit ID and integrates SHA-256 authentication to prevent battery pack cloning. The IC operates in a lead-free 10-pin TDFN package.

Feature Summary

• Integrates ModelGauge m5 algorithm for accurate state-of-charge estimation
• Includes hardware protection against electrical and thermal faults
• Features SHA-256 authentication with unique 64-bit ID for security

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+' indicates lead-free compliance and RoHS status. Confirm the package type matches the 10-pin TDFN specification. Ensure the manufacturer is Analog Devices Inc./Maxim Integrated. Check for obsolescence or lifecycle status as this product line may have discontinued variants.

Selection Notes

Select this component when precise fuel gauge accuracy and battery pack security are required. The integrated protector simplifies design by reducing external component count. Consider the I2C interface compatibility with the host processor. Evaluate the operating temperature range against application requirements.

Part Context

This part belongs to the MAX17301–MAX17313 series of single-cell fuel gauges. It shares the core ModelGauge m5 technology with other variants in the family but differs in package and specific feature sets like authentication. It is designed for portable electronics requiring reliable battery management.

Replacement Considerations

Public confirmed substitute part numbers: MAX17312G+T, MAX17312G+T&R. Verify package compatibility and pinout alignment before substitution. Ensure the replacement variant maintains the same authentication and protection features.