MAX6346UR46-T

Overview

The MAX6346UR46+T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of up to 5.5 V and features a threshold voltage of 4.63 V with an accuracy of 1.5%. The device provides one monitored input and delivers an active low, push-pull output signal. It includes a reset delay time of 185 ms and consumes a typical operating supply current of 500 nA. The component supports overvoltage detection at 4.699 V and dissipates up to 320 mW. It functions reliably across a temperature range from -40°C to +85°C and is housed in a SOT-23-3 package.

Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Active low push-pull output driver for direct logic interface
• Integrated overvoltage detection capability
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring power monitoring
• Battery-powered instrumentation systems
• Consumer electronics with strict power constraints
• Industrial control boards needing voltage supervision

Procurement Notes

Verify the exact part number suffix against official manufacturer documentation to confirm pinout and electrical characteristics. Ensure the ordering code matches the specific threshold voltage variant required for the design. Confirm RoHS compliance status through the supplier's certification documents before procurement. Cross-reference the datasheet revision date to ensure compatibility with existing system specifications.

Selection Notes

Select this component when a low-quiescent current supervisor is required for single-voltage rail monitoring. The fixed threshold voltage eliminates the need for external resistor dividers. Verify that the push-pull output drive capability meets the load requirements of the downstream microcontroller or logic gate. Ensure the operating temperature range aligns with the environmental conditions of the final application.

Part Context

This device belongs to the MAX6346 series of micropower reset circuits designed for portable applications. It shares the family's focus on minimizing power consumption while providing reliable voltage supervision. The series typically offers various threshold options to accommodate different standard voltage rails. It is positioned as a cost-effective solution for basic power management tasks in compact electronic assemblies.

Replacement Considerations

Consult the official MAX6346 datasheet for listed compatible replacements or alternative threshold variants within the same product line. Verify pin-to-pin compatibility if substituting with similar supervisory ICs from other manufacturers. Ensure equivalent electrical parameters such as threshold accuracy and reset delay are maintained.