MAX14738EWT+

Overview

The MAX14738EWT+ is a high-current overvoltage protector featuring an adjustable overvoltage lockout (OVLO) threshold. It integrates an nMOSFET switch with a typical on-resistance of 76mΩ and supports continuous current capability of 3A. The device provides robust power-system supervision for safety-critical automotive applications, monitoring voltages from 1.1V to 5V using a factory-set reset threshold. It operates within a supply voltage range of 2.2V to 36V and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an nMOSFET switch with low on-resistance for efficient power distribution
• Features adjustable overvoltage lockout (OVLO) for customizable protection thresholds
• Provides robust power-system supervision suitable for safety-critical environments

Applications

• Overvoltage protection in automotive systems
• Power-system supervision in safety-critical applications
• High-current load protection circuits

Procurement Notes

Verify the specific suffix 'EWT+' to confirm the 6-pin WLP package and factory-set OVLO configuration. Ensure compatibility with the required input voltage range of 2.2V to 36V. Confirm that the 3A continuous current rating meets the application's peak load requirements. Check for RoHS compliance documentation if environmental regulations apply. Validate the operating temperature range against the intended environment.

Selection Notes

Select this component when high-current overvoltage protection is required in compact designs. The integrated nMOSFET eliminates external switch components, reducing board space. The adjustable OVLO allows flexibility in setting protection thresholds without external resistors. Consider the 6-pin WLP package for space-constrained surface-mount applications. Ensure the 76mΩ on-resistance aligns with thermal management capabilities.

Part Context

This part belongs to the Maxim Integrated line of power management ICs, now under Analog Devices Inc. It is designed for automotive and industrial applications requiring reliable overvoltage protection. The device simplifies circuit design by integrating protection logic and switching elements into a single small footprint.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.