MAX17302G+T

Overview

The MAX17302G+T is a ModelGauge m5 EZ fuel gauge IC with protector and SHA-256 authentication for single-cell lithium-ion/polymer batteries. It operates on a supply voltage of 2.3V to 4.9V, providing an output voltage of 1.8V. The device features a low operating supply current of 24µA and functions within a temperature range of -40°C to +85°C. It is housed in a WLP-15 package.

Feature Summary

• Integrates ModelGauge m5 algorithm combining coulomb counting with voltage-based fuel gauging for high accuracy
• Includes built-in protector using external high-side N-FETs for over/undervoltage and overcurrent protection
• Features integrated SHA-256 authentication with a unique 64-bit ID to prevent battery pack cloning

Applications

• Smartphones and tablets
• Smartwatches and wearables
• Medical devices and health monitors

Procurement Notes

Verify the specific suffix 'G' against official Analog Devices documentation to confirm lead-free status and RoHS compliance details. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the WLP-15 package footprint matches your PCB design constraints before ordering.

Selection Notes

Select this component when precise state-of-charge monitoring is required for single-cell Li-ion or Li-Po batteries. The inclusion of SHA-256 authentication makes it suitable for applications requiring anti-cloning security. Consider the WLP-15 package size if board space is limited compared to TDFN alternatives.

Part Context

This part belongs to the MAX1730x series, which are standalone pack-side fuel gauges. It is part of the broader ModelGauge family designed to monitor battery voltage, current, and temperature while providing charging prescriptions to prolong battery life.

Replacement Considerations

Check the MAX17301G+T or MAX17303G+T for pin-compatible alternatives within the same series. Verify if the MAX17311–MAX17313 variants offer necessary feature differences.