MAX17049G+

Overview

The MAX17049G+ is a micropower current fuel gauge designed for lithium-ion batteries in portable equipment. It supports two series-connected cells and utilizes the ModelGauge algorithm to track relative state-of-charge continuously. The device operates within a supply voltage range of 2.5 V to 4.5 V, with an operating supply current of 23 uA. It features an I2C interface and is housed in an 8-TDFN-EP (2x2) package. The component functions as a battery monitor with an output voltage of 400 mV and operates across a temperature range of -20°C to +70°C.

Feature Summary

• Utilizes ModelGauge algorithm for continuous relative state-of-charge tracking
• Designed for two-cell lithium-ion battery configurations
• Micropower operation suitable for handheld and portable applications

Applications

• Handheld electronic devices
• Portable consumer equipment
• Battery-powered systems requiring accurate charge monitoring

Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm package integrity and RoHS compliance prior to integration. Cross-reference datasheet specifications against design requirements to ensure compatibility with target battery chemistry and system voltage levels.

Selection Notes

Select this component for applications requiring low-power fuel gauging for dual-cell lithium-ion setups. Ensure system design accommodates the specified operating temperature range and supply voltage constraints. Validate I2C interface compatibility with the host microcontroller before implementation.

Part Context

This part belongs to the MAX17048/MAX17049 series of tiny, micropower current fuel gauges. While the MAX17048 supports single-cell configurations, the MAX17049 variant is specifically engineered for two series-connected lithium cells. Both utilize the same ModelGauge technology for efficient power management in compact form factors.

Replacement Considerations

MAX17048G+T10 serves as a functional substitute for single-cell applications within the same series.