MAX14571EUD+T

Overview

The MAX14571EUD+T is a supervisory circuit from the MAX1457x series, designed for adjustable overvoltage and overcurrent protection. It features an internal FET with a typical on-resistance of 100mΩ. The device supports a wide input voltage range from 4.5V to 36V. It includes programmable overvoltage lockout (OVLO) and undervoltage lockout (UVLO) thresholds via external resistors, alongside factory-preset internal limits. The part utilizes a TSSOP-14 package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Adjustable overvoltage and undervoltage lockout thresholds using external resistors
• Programmable current limit protection up to 4.2A with retry functionality
• Integrated low on-resistance power FET for efficient power distribution
• Built-in reverse current protection and thermal shutdown mechanisms

Applications

• Battery-powered systems requiring robust fault protection
• Consumer electronic devices needing input supervision
• Industrial equipment utilizing high-voltage input rails
• Marine electronics demanding reliable power management

Procurement Notes

Verify component authenticity through authorized channels due to limited supply status. Confirm RoHS compliance and lead times with distributors. Ensure ordering suffixes match required packaging formats. Cross-reference datasheet revisions for any parameter updates prior to final procurement decisions.

Selection Notes

Select this component when adjustable fault protection thresholds are required for inputs between 4.5V and 36V. Consider the MAX14572 or MAX14573 if latch-off or continuous current limiting behaviors are preferred over the MAX14571's retry mode. Evaluate thermal requirements based on load currents exceeding typical FET capabilities.

Part Context

Part of the MAX1457x family of overvoltage and overcurrent protectors. Shares common interface pins and control logic with sibling models differing in fault response behavior. Designed for integration into power distribution networks where precise voltage monitoring and current limiting are critical for system integrity.

Replacement Considerations

MAX14572EUD+T offers latch-off behavior instead of retry. MAX14573EUD+T provides continuous current limiting rather than shut-down. Both share identical pinouts and electrical characteristics except for fault response modes.