MAX6359TWUT+T

Overview

The MAX6359TWUT+T is a dual-input voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range up to 5.5 V and features active low push-pull outputs with a reset delay of 180 ms. The device monitors two inputs with threshold voltages of 3.08 V and 4.63 V, and overvoltage thresholds of 3.14 V and 4.72 V. It includes a manual reset input and a watchdog timer, consuming only 20 uA of operating current. Accuracy is specified at 1.5%, and it functions between -40 C and +85 C in an SOT-23-6 package.

Feature Summary

• Dual-input voltage supervision with factory-programmed thresholds for precise monitoring
• Integrated watchdog timer and manual reset input for system reliability
• Low power consumption suitable for portable applications
• Active low push-pull output configuration

Applications

• Portable electronic devices requiring low standby current
• Systems monitoring multiple power rails simultaneously
• Embedded controllers needing watchdog functionality
• Battery-powered equipment with strict power constraints

Procurement Notes

Verify the specific suffix TWUT against the official datasheet to confirm threshold values and package type. Ensure compatibility with existing board layouts for the SOT-23-6 footprint. Check for RoHS compliance documentation if required by regional regulations. Confirm availability status as distribution may vary. Validate that the manual reset and watchdog features meet system design requirements before procurement.

Selection Notes

Select this component when dual voltage monitoring is required in a compact surface-mount package. Consider the 180 ms reset delay and 20 uA quiescent current for power-sensitive designs. Verify that the fixed thresholds of 3.08 V and 4.63 V align with the monitored supply rails. The push-pull output simplifies interface logic compared to open-drain alternatives. Ensure the operating temperature range covers the intended application environment.

Part Context

This part belongs to the MAX6359L series of microprocessor supervisory circuits from Maxim Integrated. These devices are designed to monitor power supplies in complex digital systems. The series offers various threshold combinations and package options to suit different design needs while maintaining low power consumption and high accuracy standards typical of Maxim's PMIC portfolio.

Replacement Considerations

Check for MAX6359 variants with similar threshold voltages and package types. Verify pinout compatibility for direct replacement. Ensure equivalent electrical characteristics such as reset delay and supply current. Confirm that any substitute supports both manual reset and watchdog functions if required by the original design.