MAX17320G20+T

Overview

The MAX17320G20+T is a high-accuracy fuel gauge and protection circuit designed for multi-cell battery-powered products. It supports 2S to 4S lithium-ion or lithium-polymer cell configurations. The device integrates the ModelGauge m5 EZ algorithm to deliver precise state-of-charge readings without requiring extensive battery characterization. Key electrical parameters include an input voltage range of 6V to 15V, a quiescent current of 1.8µA, and an I²C interface operating at up to 400kHz. It features internal self-discharge detection and SHA-256 authentication capabilities.

Feature Summary

• Integrates ModelGauge m5 EZ algorithm for accurate state-of-charge estimation
• Includes built-in protection against self-discharge hazards
• Features SHA-256 authentication to prevent counterfeit batteries
• Supports standard I²C communication protocol

Applications

• Multi-cell portable electronic devices
• Battery packs for industrial equipment
• Medical instrumentation power systems
• Uninterruptible power supply units

Procurement Notes

Verify the specific suffix 'G20' against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing I²C bus architectures and validate that the 2S-4S voltage range aligns with target battery chemistry requirements before finalizing procurement.

Selection Notes

Select this component when high accuracy in state-of-charge monitoring is critical for multi-cell lithium-based systems. The integrated protection and authentication features make it suitable for applications requiring enhanced security and reliability compared to basic fuel gauges.

Part Context

This part belongs to the MAX17320 family of standalone fuel gauge ICs. It is designed to extend run-time on battery-powered products while providing robust monitoring. The G20 designation typically indicates a specific surface-mount package variant within the broader MAX17320 product line.

Replacement Considerations

Consider the MAX17320G1EVKIT or MAX17320X1EVKIT for evaluation purposes. Direct replacements may include other ModelGauge m5 EZ enabled parts from the same manufacturer, provided they support the required cell count and interface protocols.