MAX6337US23D3+T

Overview

The MAX6337US23D3+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 2.3 V with an overvoltage threshold of 2.34 V. The device provides an active low, open-drain reset output with a delay time of 150 ms. It consumes 3.3 µA of operating supply current and offers high accuracy of 1.8%. The component supports manual reset functionality without a watchdog timer or battery backup switch. It is housed in a SOT-143-4 package and functions reliably across a temperature range from -40°C to +125°C.

Feature Summary

• Provides precise voltage supervision with 1.8% accuracy for reliable system monitoring
• Integrates a debounced manual reset input for user-initiated control
• Delivers active low open-drain reset signals with configurable delay times
• Operates efficiently with ultra-low power consumption suitable for battery applications

Applications

• Microprocessor power supply monitoring in digital systems
• Battery-operated portable devices requiring low quiescent current
• Industrial control systems needing wide temperature operation
• Embedded systems requiring manual reset capability

Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to ensure correct package type and temperature rating. Confirm RoHS compliance status through manufacturer datasheets as regulatory requirements vary by region. Check availability status directly with authorized distributors since supply constraints may affect lead times. Ensure proper handling procedures are followed during surface mount assembly to maintain component integrity.

Selection Notes

Select this component when a fixed 2.3 V threshold is required for single-input voltage monitoring. Consider the SOT-143-4 package size for space-constrained designs. Evaluate the 150 ms reset delay against system startup requirements. Verify that the open-drain output configuration matches the downstream logic interface needs. Assess the 3.3 µA current consumption against total system power budget constraints.

Part Context

This part belongs to the MAX6337 series of ultra-low-voltage, low-power microprocessor reset circuits. The series typically includes variants with different threshold voltages and package options. The US23D3 suffix indicates specific electrical characteristics and packaging details defined by the manufacturer. These circuits are designed to replace discrete components, reducing board space and design complexity.

Replacement Considerations

Consult the official MAX6337 family datasheet for cross-reference information. Verify pin compatibility and electrical parameters before substituting with other series members. Ensure any alternative component meets the same thermal and voltage specifications.