MAX6332UR22D3

Overview

The MAX6332UR22D3 is a single-channel 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 fixed threshold voltage of 2.2 V. The device provides an active-low, push-pull reset output with a typical reset delay time of 40 ms. It is housed in a compact SOT-23-3 surface-mount package and supports an extended operating temperature range from -40°C to +125°C. The circuit draws a low quiescent current of 3.3 µA and includes built-in hysteresis to prevent output jitter during power transitions.

Feature Summary

• Provides system supervision for digital processors by monitoring input voltage levels
• Delivers a deterministic reset signal via an active-low push-pull output
• Operates without external components due to integrated hysteresis and timing circuits

Applications

• Microprocessor power supply monitoring
• Battery-powered system supervision
• Portable electronic device power management

Procurement Notes

Verify the specific suffix D3 against official datasheets to confirm the exact threshold voltage and package variant, as suffixes define electrical characteristics. Confirm availability status through authorized distributors, as lifecycle changes may affect sourcing options.

Selection Notes

Select this component when a low-power, single-supervisor solution is required for systems operating below 5.5 V. Ensure the 2.2 V threshold aligns with the target processor's valid logic level requirements. Verify that the SOT-23-3 footprint fits the design constraints.

Part Context

This part belongs to the MAX6332/MAX6333 family of low-power microprocessor reset circuits. These devices are designed to replace discrete supervisor components, offering significant space savings in portable applications while maintaining high reliability and accuracy.

Replacement Considerations

Cross-reference with MAX6332UR22D2+T or MAX6332UR22D3+T for pin-compatible alternatives. Verify that any substitute maintains the same 2.2 V threshold and active-low push-pull output configuration.