MAX6327UR29+

Supervisors Overview

The MAX6327UR29+ is a 3-pin ultra-low-power supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It monitors a single voltage input with a fixed threshold of 2.93 V and an overvoltage threshold of 2.974 V. The device features an active-high, push-pull reset output without manual reset or watchdog functionality. Operating within a supply voltage range up to 5.5 V, it draws a maximum working current of 1 µA. The component operates reliably between -40°C and +85°C, housed in an SOT-23-3 surface-mount package.

Supervisors Feature Summary

• Ultra-low power consumption with maximum supply current of 1 µA for portable applications
• Active-high push-pull reset output ensures robust signal integrity
• Precision voltage monitoring with factory-trimmed thresholds
• Compact 3-pin SOT-23/SC-70 footprint for space-constrained designs

Supervisors Applications

• Portable battery-powered equipment
• Microprocessor power supply monitoring
• Intelligent instruments
• Controller equipment

Supervisors Procurement Notes

Verify the specific suffix 'UR29' against official datasheets to confirm the 2.93 V threshold variant. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices as this series may have limited availability. Ensure the SOT-23-3 package matches your PCB layout requirements before procurement.

Supervisors Selection Notes

Select this component when an active-high reset signal is required rather than the common active-low configuration found in similar parts like the MAX6326. The 1 µA current draw makes it suitable for battery-operated devices where standby power is critical. Verify that the 2.93 V threshold aligns with the target system's minimum operating voltage requirements.

Supervisors Part Context

This part belongs to the MAX6326/MAX6327/MAX6328 family of microprocessor supervisory circuits. These devices eliminate external components by providing precise voltage monitoring and reset generation. The MAX6327 variant specifically distinguishes itself with an active-high output, contrasting with the active-low outputs of the MAX6326 and MAX6328 counterparts within the same low-power series.

Supervisors Replacement Considerations

MAX6326UR29+T offers identical electrical performance but provides an active-low open-drain output instead of active-high push-pull. MAX6328UR29+T also provides active-low output. Direct functional replacement requires verifying the logic polarity requirement of the downstream circuit.