MAX14745QEWX+T

Overview

The MAX14745QEWX+T is a battery-charge-management solution designed for low-power wearable applications. It integrates a linear battery charger with smart charging algorithms and supports lithium-ion batteries. The device operates on a supply voltage of 2.7 V to 28 V, delivering an output current of 200 mA. Output voltage is adjustable from 800 mV to 3.6 V. It features a WLP-36 package, operates within -40°C to +85°C, consumes 1.5 mA quiescent current, and dissipates up to 1.74 W.

Feature Summary

• Integrates a linear battery charger with smart charging algorithms for optimized power management.
• Supports lithium-ion battery chemistry with programmable voltage settings.
• Includes comprehensive fault protection mechanisms such as over-temperature and over-voltage safeguards.

Applications

• Low-power wearable electronic devices
• Wearable charge management systems
• Portable consumer electronics requiring compact battery solutions

Procurement Notes

Verify the specific suffix (EEWX, QEWX, etc.) against the design requirements, as variations may exist in qualification or packaging. Confirm RoHS compliance status through official documentation. Ensure the WLP-36 package footprint matches the PCB layout. Check availability constraints as some variants may have limited supply. Validate operating temperature range suitability for the target environment.

Selection Notes

Select this component for applications requiring a compact, integrated charge management solution for single-cell lithium-ion batteries. Consider the 200 mA output current limit and 2.7 V to 28 V input range for system compatibility. The WLP-36 package is suitable for space-constrained designs. Evaluate thermal performance given the 1.74 W power dissipation capability. Ensure the smart charging algorithm meets the specific battery profile requirements.

Part Context

The MAX14745 series serves as a dedicated charge management platform for wearables. The QEWX variant is part of this family, sharing core functionalities like linear charging and fault protection. It complements other PMIC offerings by focusing on simplified integration for battery-powered portable devices. The series emphasizes efficiency and safety in small form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult Analog Devices official resources for cross-reference information. Verify pinout and electrical parameter compatibility before considering any alternative components.

FAQ

What battery chemistry does the MAX14745QEWX+T support?

It supports Lithium-ion battery chemistry.

What is the operating supply voltage range?

The device operates on a supply voltage ranging from 2.7 V to 28 V.