MAX6348XR45-T

Overview

The MAX6348XR45-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 an overvoltage threshold of 4.50 V. The device provides an active low, open-drain reset output with a fixed reset delay time of 280 ms. It consumes a maximum operating supply current of 500 nA and dissipates up to 174 mW. The component is housed in a SC-70-3 surface-mount package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Fixed timeout period ensures reliable system initialization
• Compact three-pin surface-mount packaging

Applications

• Portable electronic devices requiring voltage monitoring
• Battery-powered instrumentation systems
• Microprocessor reset circuits in embedded applications

Procurement Notes

Verify authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lot traceability upon receipt. Check for obsolescence notices as availability may be limited. Ensure storage conditions align with manufacturer specifications to maintain component integrity before assembly.

Selection Notes

Select this part when a fixed 4.50 V overvoltage detection threshold is required. The SC-70-3 package suits space-constrained designs. Verify that the 280 ms reset delay meets system timing requirements. Ensure the 500 nA quiescent current fits the power budget constraints of the target application environment.

Part Context

This component belongs to the MAX6348 series of uPower Reset Circuits. It serves as a dedicated voltage supervisor for monitoring single-input power rails. The series offers various threshold options and package types to accommodate different design needs while maintaining consistent low-power performance characteristics across the family.

Replacement Considerations

Compatible substitutes include other MAX6348 variants with matching thresholds and packages, such as MAX6348XR39+T or MAX6348UR34+T, provided the specific voltage thresholds and pin configurations align with the original design requirements.