MAX17215G+

Overview

The MAX17215G+ is a standalone battery fuel gauge IC designed for lithium-ion and lithium-polymer cells. It operates within a supply voltage range of 4.2 V to 20 V and features a 1-Wire interface for communication. The device provides accurate state-of-charge (SOC) monitoring, identification, and status reporting. It is housed in a compact 14-TDFN (3x3 mm) package suitable for surface-mount applications. The IC supports single-cell configurations with nominal supply current specifications optimized for low-power operation.

Feature Summary

• Provides precise state-of-charge monitoring and battery identification capabilities
• Utilizes a 1-Wire serial interface for simplified system integration
• Supports standalone operation for lithium-ion and lithium-polymer batteries

Applications

• Industrial equipment battery management
• Automotive electronic systems
• Aerospace instrumentation power monitoring

Procurement Notes

Verify the specific suffix and tape-and-reel or tube packaging options directly with authorized distributors. Confirm RoHS compliance status and lead times for the requested quantity. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Selection Notes

Select this component when a low-pin-count solution for single-cell lithium battery monitoring is required. The 1-Wire interface reduces pin count compared to I2C or SPI alternatives. Verify that the host microcontroller supports the 1-Wire protocol timing requirements. Ensure the operating temperature range meets the environmental conditions of the final application.

Part Context

This device belongs to the Maxim Integrated battery management portfolio, specifically the ModelGauge family of fuel gauges. It is designed to replace older discrete solutions by integrating SOC calculation and cell protection logic into a single small-footprint IC. The product line emphasizes accuracy and ease of implementation for portable and industrial devices.

Replacement Considerations

Check for direct pin-compatible upgrades within the same manufacturer's portfolio. Verify if newer generations offer improved accuracy or additional diagnostic features. Ensure any substitute maintains the 1-Wire interface compatibility to avoid redesigning the host controller software.