MAX6315US28D1

Supervisors Overview

The MAX6315US28D1+T is a voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.8 V. The device provides an active low, open-drain output with a manual reset capability. It utilizes a SOT-143-4 surface-mount package and supports a reset delay time of 1.4 ms. The component functions across an extended temperature range from -40°C to +125°C, maintaining an accuracy of 1.8%. Quiescent current consumption is specified at 5 µA, and it lacks watchdog timer or battery backup switch functionalities.

Supervisors Feature Summary

• Provides system reset assertion when monitored supply voltage falls below the programmed threshold
• Features manual reset input for direct control of the reset state
• Delivers active low open-drain output compatible with standard logic interfaces
• Designed to ignore short transients on the monitored supply line

Supervisors Applications

• Portable electronic devices requiring low power monitoring
• Battery-powered systems needing precise voltage supervision
• Embedded controllers requiring reliable power-on reset sequences
• Industrial equipment operating in extreme temperature environments

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status as indicated in official documentation. Check manufacturing date codes for lot traceability requirements. Ensure packaging integrity matches reel or cut tape specifications. Validate that the part number suffix corresponds exactly to the required threshold voltage and package type before ordering.

Supervisors Selection Notes

Select this component when a fixed 2.8 V threshold is required for single-supply monitoring. Consider the SOT-143-4 package for space-constrained designs. Evaluate the 1.4 ms reset delay against system startup timing requirements. Assess the 5 µA quiescent current impact on overall battery life. Verify compatibility with the target microprocessor's reset input characteristics.

Supervisors Part Context

The MAX6315 series belongs to Maxim Integrated's portfolio of CMOS microprocessor supervisory circuits. These devices are engineered for portable applications where low supply current and small package size are critical. The series offers various factory-programmed reset thresholds and timeout periods to accommodate different system architectures and voltage rails.

Supervisors Replacement Considerations

MAX6315US28D1+T is functionally equivalent to MIC6315-28D3UY-TR from Microchip Technology. Both offer similar threshold voltages and open-drain outputs in comparable packages. Verify pinout compatibility and reset delay times before substitution.