MAX6346UR45-T

Overview

The MAX6346UR45-T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single input voltage with a threshold of 4.5V. The device features an active low, push-pull output and a reset timeout of 100ms minimum. It operates within a supply voltage range up to 5.5V and functions between -40°C and +85°C. The component is housed in a SOT-23-3 package.

Feature Summary

• Monitors a single voltage input channel
• Provides active low push-pull reset output
• Operates across extended industrial temperature ranges

Applications

• Microprocessor reset circuits
• Battery-powered system supervision
• Portable electronic device power management

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the 4.5V threshold requirement matches the target application voltage levels. Ensure compatibility with the SOT-23-3 footprint during PCB layout. Check for RoHS compliance status if required by regulatory standards.

Selection Notes

Select this component for applications requiring a fixed 4.5V monitoring threshold. Consider the active low output polarity for logic interface compatibility. Evaluate the 100ms minimum reset timeout against system startup requirements. Verify that the SOT-23-3 package size fits the available board space constraints.

Part Context

This part belongs to the MAX6346 series of ultra-low-power reset circuits. The series offers various threshold voltages and package options. The UR45 variant specifically targets 4.5V monitoring needs. It is designed for compact portable electronics where space and power consumption are critical factors.

Replacement Considerations

The MAX6346UR46+T is a related variant with a 4.63V threshold. Verify threshold voltage differences before substitution. Other MAX6346 variants may offer different packages or thresholds. Ensure electrical parameters match the original design requirements.