MAX40002AUK02+T

Overview

The MAX40002AUK02+T is a nanoPower single comparator in a 5-pin SOT-23 package. It operates on a supply voltage range of 1.7V to 5.5V with a typical supply current of 500nA. The device features an internal reference voltage preset at 0.2V, noninverting input polarity, and an open-drain output structure. Input voltage ranges from 0.1V to 5.5V independent of the supply rail. Propagation delay is typically 9µs with 8mV of internal hysteresis. It functions across an automotive temperature range of -40°C to +125°C.

Feature Summary

• Ultra-low power consumption preserves battery life in portable applications
• Tiny footprint saves board space compared to standard packages
• High RF immunity provided by internal filtering
• Maintains high input impedance even when powered down

Applications

• Mobile devices
• Portable medical devices
• Notebook computers
• Electronic toys

Procurement Notes

Verify the specific suffix '02' confirms the factory-trimmed 0.2V internal reference voltage. Confirm the 'AUK' designation indicates the 5-pin SOT-23 package variant rather than the WLP option. Ensure the '+T' suffix matches the required tape-and-reel packaging format for automated assembly processes.

Selection Notes

Select this component when board space is constrained and ultra-low quiescent current is critical. The open-drain output requires an external pullup resistor. Use this part if a fixed low-voltage threshold near 0.2V is needed without external components. Verify that the 9µs propagation delay meets system timing requirements.

Part Context

This device belongs to the MAX40002–MAX40005 family of nanoPower comparators. These parts are designed for compact, low-current, and low-voltage applications. The family includes variants with different input polarities, output types, and internal reference voltages to suit diverse design needs.

Replacement Considerations

The MAX40002ANS02+T serves as a direct functional substitute using the 4-bump WLP package instead of the SOT-23 form factor.