MAX6388XS43D3-T

Supervisors Overview

The MAX6388XS43D3-T is a dual microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power-supply voltages within the +1.8V to +5.0V range while consuming only 7µA of supply current. The device features an active-high, push-pull reset output with a fixed 280ms timeout delay. It operates over an extended temperature range from -40°C to +125°C and is housed in a compact SC-70-4 surface-mount package.

Supervisors Feature Summary

• Dual-channel voltage supervision for monitoring multiple power rails simultaneously
• Ultra-low quiescent current consumption suitable for battery-powered applications
• Active-high push-pull reset output configuration
• Extended industrial operating temperature range

Supervisors Applications

• Portable electronic devices requiring low-power voltage monitoring
• Battery-operated systems needing efficient power management
• Industrial control units operating in extreme temperatures
• Embedded systems requiring reliable dual-rail supervision

Supervisors Procurement Notes

Verify the specific threshold voltage suffix corresponding to the required trip point, as the MAX6388 series utilizes alphanumeric codes to denote factory-set thresholds. Confirm the package type matches the design footprint, as variations exist between SC-70 and µDFN formats within the broader family. Ensure compatibility with the system's logic levels given the active-high output specification.

Supervisors Selection Notes

Select this component when dual independent voltage monitoring is required without manual reset functionality. The fixed 280ms timeout suits applications where rapid recovery is not critical. Verify that the monitored voltages fall within the supported 1.8V to 5.0V input range. Consider the 7µA current draw against total system power budgets for portable designs.

Supervisors Part Context

This part belongs to the MAX6388XS series of low-voltage, low-power microprocessor reset circuits. It is designed to replace older single-channel supervisors by providing dual monitoring in a minimal footprint. The series integrates precise internal comparators and timer circuits to ensure stable operation during power-up and power-down sequences.

Supervisors Replacement Considerations

Cross-reference with other MAX6388 variants sharing the same SC-70-4 package and 280ms timeout. Verify that alternative parts maintain the active-high output polarity and dual-input architecture. Check for identical threshold voltage specifications to ensure functional equivalence in the target circuit.