MAX6389XS16D3

Overview

The MAX6389XS16D3+T is a dual-input microprocessor supervisory circuit in an SC-70-4 package. It monitors two power-supply inputs with a threshold voltage of 3.08V and an adjustable overvoltage threshold of 3.15V. The device features an active-low, open-drain reset output with a fixed 280ms timeout delay. Operating from 1.8V to 5.5V, it consumes 7µA at 1.8V. Accuracy is 2.5%, with a temperature range of -40°C to +125°C.

Feature Summary

• Dual independent voltage monitoring channels for comprehensive power supervision
• Active-low open-drain reset output ensures compatibility with various logic families
• Low quiescent current consumption supports battery-operated applications

Applications

• Portable electronic devices requiring dual-rail power management
• Embedded systems needing reliable brown-out protection
• Industrial control units operating in extreme temperatures

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status as indicated by the plus sign. Ensure the SC-70-4 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when dual-voltage monitoring is required within a compact SC-70-4 footprint. The open-drain output suits systems needing wired-OR configurations. Verify that the 3.08V threshold aligns with your specific supply rail requirements.

Part Context

Part of the MAX6381–MAX6390 family of low-power µP reset circuits. This series provides factory-set thresholds ranging from 1.58V to 4.63V. The MAX6389 variant specifically adds a second monitoring input while maintaining low power consumption.

FAQ

Does the MAX6389XS16D3+T include a manual reset input?

No, this specific variant does not feature a manual reset input.

What is the reset output type for the MAX6389 series?

The MAX6389 series utilizes an active-low, open-drain reset output.