MAX6729KAVDD3+T

Supervisors Overview

The MAX6729KAVDD3+T is a dual ultra-low-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.8V to 5V and monitors two independent input channels with threshold voltages spanning from 900mV to 3.3V. The device features an active low push-pull output, manual reset capability, and an integrated watchdog timer. It consumes only 15µA of quiescent current and supports power-fail detection. The component is housed in an SOT-23-8 package and is rated for operation between -40°C and +125°C.

Supervisors Feature Summary

• Dual-channel voltage supervision with factory-trimmed thresholds
• Integrated watchdog timer for system reliability
• Ultra-low 15µA operating current consumption
• Manual reset input for user-initiated control

Supervisors Applications

• Portable electronic devices requiring extended battery life
• Embedded systems needing multi-rail power monitoring
• Industrial control units operating in extreme temperatures
• Consumer electronics with strict size constraints

Supervisors Procurement Notes

Verify the specific suffix 'DD3' against official Analog Devices documentation to confirm exact threshold values and temperature grades. Confirm RoHS compliance status through the manufacturer's current datasheet. Check availability as distribution channels may list this part as limited or obsolete. Ensure the ordering information matches the required pinout and package type for your PCB design.

Supervisors Selection Notes

Select this component when dual independent voltage rails require simultaneous monitoring in space-constrained designs. The SOT-23-8 package offers a compact footprint suitable for portable applications. Consider the 15µA quiescent current for battery-powered systems where standby power efficiency is critical. Verify that the available threshold ranges cover the specific supply voltages of your target application.

Supervisors Part Context

This part belongs to the MAX6729A series of dual/triple ultra-low-voltage supervisors. These circuits are designed to replace discrete components, reducing board space and improving reliability. The series supports various threshold combinations and includes features like watchdog timers and manual resets. They are widely used in mobile phones, PDAs, and other handheld devices.

Supervisors Replacement Considerations

Consult the official MAX6729A family datasheet for cross-reference options. Verify pin compatibility and electrical specifications before substituting with similar dual-supervisor ICs from other manufacturers.