MAX4920BETD+

Overview

The MAX4920BETD+ is a battery protection controller manufactured by Analog Devices Inc./Maxim Integrated. It integrates an overvoltage protection controller with a 1.8A pFET switch, designed for single-cell lithium-ion or lithium-polymer batteries. The device provides comprehensive fault protection including overcurrent, overvoltage, undervoltage, and short circuit conditions. It operates within a specified voltage range suitable for portable applications.

Feature Summary

• Integrates a high-current 1.8A pFET switch for efficient power management
• Provides multi-layer fault protection against overcurrent, overvoltage, undervoltage, and short circuits
• Optimized for single-cell battery-powered portable electronic devices

Applications

• Battery protection in portable consumer electronics
• Power management systems for mobile devices
• Single-cell lithium-ion battery packs

Procurement Notes

Verify the specific suffix 'ETD+' to confirm the 14-WFDFN package with exposed pad configuration. Ensure compatibility with single-cell battery architectures requiring integrated switching capabilities. Confirm RoHS3 compliance status through official manufacturer documentation prior to integration into production designs.

Selection Notes

Select this component when a compact solution combining protection logic and power switching is required for single-cell applications. The integrated pFET switch reduces external component count compared to discrete solutions. Evaluate thermal performance requirements given the 1.8A current capability and ensure the operating temperature range meets system specifications.

Part Context

This part belongs to the Maxim Integrated battery protection family, focusing on safety and efficiency for portable electronics. It represents a consolidated approach to battery management by merging control logic with power handling in a small footprint, addressing space constraints in modern handheld devices.

Replacement Considerations

Check for direct substitutes within the MAX4920 series or compatible Maxim Integrated battery protection ICs with similar current ratings and package dimensions. Verify pin-to-pin compatibility if replacing in existing layouts.