MAX17301X+T

Overview

The MAX17301X+T is a standalone pack-side fuel gauge IC featuring an integrated protector and optional SHA-256 authentication for single-cell lithium-ion or polymer batteries. It utilizes the ModelGauge m5 algorithm to provide accurate state-of-charge measurements in milliampere-hours or percentage. The device monitors voltage, current, temperature, and battery status to enable protection against overvoltage, undervoltage, overcurrent, short-circuit, and thermal extremes using external high-side N-FETs. It operates with a low quiescent current of 24 µA and supports 1-Wire or I2C interfaces.

Feature Summary

• Integrates ModelGauge m5 EZ algorithm for precise state-of-charge estimation without calibration
• Includes SHA-256 authentication with unique 64-bit ID to prevent battery pack cloning
• Provides dynamic power functionality to estimate instantaneous maximum battery output power
• Features programmable safety protections including overvoltage, overcurrent, and thermal limits

Applications

• Smartphones and tablets
• Smartwatches and wearable devices
• Medical devices and health monitors
• Digital cameras and action cams
• Handheld computers and terminals

Procurement Notes

Verify the specific suffix 'X' indicates the WLP package variant when ordering. Confirm that the '+T' designation corresponds to the tape-and-reel packaging format required for your assembly process. Ensure compatibility with the selected communication interface protocol before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high accuracy fuel gauging combined with battery protection in a compact form factor. Consider the WLP package size constraints and the necessity for SHA-256 security features. Evaluate system requirements for external FET integration and interface compatibility with the host microcontroller.

Part Context

This part belongs to the MAX17301–MAX17303 series of ModelGauge m5 EZ fuel gauges. It is designed as a comprehensive solution for portable electronics, combining measurement, protection, and security in a single chip. The series targets modern mobile devices where space and power efficiency are critical design parameters.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.