MAX6428AGUR-T

Overview

The MAX6428AGUR-T is a low-power, single-level battery monitor and voltage supervisor from the MAX6428 series. It operates within an input voltage range of 1.6 V to 5.5 V and features a fixed threshold voltage of 2.32 V with 1.5% accuracy. The device provides an active-low, open-drain output with a reset delay time of 185 ms. It consumes only 500 nA of supply current and supports a maximum power dissipation of 320 mW. Designed for surface-mount installation in SOT-23-3 packages, it functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Fixed threshold voltage monitoring with high accuracy
• Open-drain output capable of driving low-current loads

Applications

• Single-cell battery level monitoring
• Voltage supervision in portable electronics
• Low-power embedded system reset circuits

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the operating temperature range meets your environmental requirements. Check for RoHS compliance status before integration. Validate pinout compatibility with existing PCB footprints.

Selection Notes

Select this component for applications requiring precise voltage monitoring with minimal quiescent current. The fixed 2.32 V threshold suits specific logic families or battery chemistries. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the SOT-23-3 package size against board space constraints. Verify that the 185 ms delay aligns with system startup timing requirements.

Part Context

This part belongs to the MAX6428 family of supervisory circuits designed for low-voltage applications. It serves as a compact solution for monitoring power rails in space-constrained devices. The series emphasizes energy efficiency without compromising monitoring precision. It complements other Maxim Integrated power management solutions for complete system protection strategies.

Replacement Considerations

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