MAX6353SZUK+

Overview

The MAX6353SZUK+T is a dual-input voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an SOT-23-5 surface-mount package. It features a manual reset input and operates within a supply voltage range of up to 5.5 V. The device monitors two distinct voltage rails with threshold voltages of 1.67 V and 2.78 V, corresponding to over-voltage thresholds of 1.7 V and 2.82 V respectively. It provides active low push-pull outputs with a fixed reset delay time of 180 ms. The unit maintains an accuracy of 1.5% and draws a typical operating supply current of 20 uA. It supports an extended industrial temperature range from -40°C to +85°C without battery backup or watchdog timer functionality.

Feature Summary

• Dual independent voltage monitoring channels for critical power rails
• Manual reset capability allowing user-initiated system recovery
• Active low push-pull output driver for direct logic interface
• Low quiescent current consumption for power-sensitive applications

Applications

• Portable electronic devices requiring multi-rail power supervision
• Embedded systems with separate analog and digital power domains
• Industrial control units needing manual reset intervention
• Battery-operated equipment with strict power management requirements

Procurement Notes

Verify the specific suffix 'S' against official datasheets to confirm exact threshold voltage selections, as variations exist within the MAX6353 family. Confirm RoHS compliance status through manufacturer documentation. Check availability constraints as distribution may be limited. Ensure the SOT-23-5 package footprint matches your PCB design. Validate thermal performance within the specified -40°C to +85°C operating range for your intended environment.

Selection Notes

Select this component when dual voltage monitoring with manual reset is required. Compare threshold accuracies against system tolerance requirements. Evaluate the 180 ms reset delay against startup timing needs. Consider the 20 uA supply current impact on overall system power budget. Verify compatibility with the target logic levels provided by the active low push-pull output stage.

Part Context

This part belongs to the MAX6353 series of microprocessor supervisors designed for low-power applications. It complements other Maxim Integrated monitoring solutions by offering dual-channel oversight in a compact SOT-23-5 form factor. The series targets portable and industrial markets where space and power efficiency are critical constraints.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure replacement parts match the SOT-23-5 package and dual-input configuration. Verify identical threshold voltages and reset delay characteristics.