MAX6800UR44D3

Supervisors Overview

The MAX6800UR44D3+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 2.85 V to 5 V and features an active-high, push-pull output. The device provides a fixed reset delay time of 2 ms and includes an overvoltage threshold detection at 4.459 V. It consumes a typical operating supply current of 5 uA and supports power dissipation up to 320 mW. The component functions reliably across an extended temperature range from -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.

Supervisors Feature Summary

• Provides precise monitoring of a single power supply rail with factory-set thresholds
• Features low quiescent current consumption suitable for battery-powered applications
• Includes internal hysteresis to ensure stable switching during voltage transitions
• Delivers a reliable reset signal via an active-high push-pull output

Supervisors Applications

• Monitoring microprocessor power supplies in digital systems
• Battery-operated electronic devices requiring low standby current
• Portable instrumentation and handheld equipment
• Automotive electronics operating in high-temperature environments

Supervisors Procurement Notes

Verify the suffix D3 against official documentation, as standard listings often specify D1. Confirm availability status directly with authorized distributors, as this specific variant may be subject to limited supply or discontinuation. Ensure the ordering part number matches the required output polarity and package type before procurement.

Supervisors Selection Notes

Select this component when an active-high reset signal is required for system initialization. It is appropriate for designs needing a 2 ms delay and operation up to 5.5 V maximum input. Consider the SOT-23-3 footprint for space-constrained layouts. Verify that the 5 uA current draw meets the system's power budget requirements.

Supervisors Part Context

This part belongs to the MAX6800 series of micropower voltage supervisors. It shares functional similarities with other Maxim Integrated reset circuits but is distinguished by its specific active-high output configuration and preset threshold values. The series is designed to replace discrete resistor networks, simplifying board design and improving reliability.

Supervisors Replacement Considerations

Check for MAX6800 variants with different suffixes (e.g., D1) if the D3 version is unavailable. Ensure any substitute maintains the active-high output and compatible threshold voltages.