MAX17313G+

Overview

The MAX17313G+ is a 1-cell ModelGauge m5 EZ fuel gauge IC with protector and SHA-256 authentication. It operates on a 3V to 4.2V supply, featuring a 24µA standby current. The device utilizes a 1-Wire or I2C interface for data access. It provides protection against over/undervoltage, overcurrent, short-circuit, and temperature faults using external N-FETs. Accuracy is maintained via coulomb counting and voltage-based algorithms.

Feature Summary

• Integrates SHA-256 authentication with a unique 64-bit ID to prevent battery pack cloning
• Combines coulomb counter linearity with voltage stability for high-accuracy state-of-charge estimation
• Provides dynamic power functionality for instantaneous maximum battery output power calculation
• Automatically compensates for cell aging, temperature variations, and discharge rates

Applications

• Smartphones and tablets
• Smartwatches and wearables
• Medical devices and health monitors
• Digital cameras and handheld terminals

Procurement Notes

Verify the specific suffix 'G+' indicates lead-free RoHS compliance as per manufacturer standards. Confirm the package type matches the required footprint for your PCB design. Ensure the firmware version aligns with your system's communication protocol requirements. Check for any regional export control classifications if applicable to your deployment location.

Selection Notes

Select this component when SHA-256 security is mandatory for battery pack integrity. Ideal for applications requiring precise state-of-charge reporting in milliampere-hours. Suitable for systems needing integrated protection logic without additional discrete components. Consider the 1-Wire interface constraint if I2C-only systems are preferred.

Part Context

Part of the MAX17301–MAX17303/MAX17311–MAX17313 family. Shares core ModelGauge m5 algorithm and protection features. Variants differ primarily in package options (TDFN vs WLP) and specific pinout configurations. All members support single-cell lithium-ion/polymer battery monitoring.

Replacement Considerations

MAX17311G+ offers identical functionality in a different package. MAX17303G+ provides similar features with potential pinout variations. Verify interface compatibility and physical dimensions before substitution. Cross-reference datasheets for exact electrical parameter matching.