MAX17055EWL+

Overview

The MAX17055EWL+ is a single-cell fuel gauge IC from the ModelGauge m5 EZ series, designed for lithium-ion and lithium polymer batteries. It operates within a supply voltage range of 2.3 V to 4.9 V and features a low operating current of 18 uA. The device utilizes a 9-WLP (1.41x1.50 mm) surface-mount package and supports I2C communication. It provides accurate state-of-charge and capacity estimation without requiring external shunt resistors or battery characterization.

Feature Summary

• Implements ModelGauge m5 EZ algorithm for high-accuracy fuel gauging without battery characterization
• Eliminates need for external shunt resistors by utilizing internal voltage sensing
• Supports I2C interface for efficient system integration with host microcontrollers

Applications

• Wearable electronic devices
• Internet of Things (IoT) terminals
• Portable medical equipment
• Handheld industrial tools

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status and check for recent manufacturing date codes to ensure reliability. Validate that the specific WLP package variant matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when precise single-cell battery monitoring is required without adding passive components. It is suitable for space-constrained designs due to its small WLP footprint. Ensure the host system supports I2C communication and can handle the required interrupt signals for accurate state updates.

Part Context

This part belongs to the Maxim Integrated MAX17055 family, now under Analog Devices. It represents an evolution in fuel gauge technology by integrating advanced algorithms directly into the silicon. The EWL+ suffix denotes the specific 9-pin wafer-level package configuration optimized for compact mobile applications.

Replacement Considerations

Consult official Analog Devices documentation for direct pin-compatible alternatives within the MAX17055 series. Verify algorithm compatibility if migrating between different ModelGauge versions to ensure consistent state-of-charge accuracy across the design lifecycle.