MAX6353TZUK+T

Overview

The MAX6353TZUK+T is a dual-input voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power rails and asserts an active-low, push-pull reset signal when any monitored voltage falls below its respective threshold. The device features a manual reset input for system control and includes a fixed reset delay time of 180 ms to ensure stable power-up sequencing. It operates within a specified supply range and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Dual-channel monitoring capability for independent power supplies
• Active-low push-pull output driver for robust reset signaling
• Manual reset input allows external system control over reset state
• Fixed reset delay ensures controlled power-up timing

Applications

• Portable electronic devices requiring multi-voltage supervision
• Embedded systems with separate logic and I/O power domains
• Battery-powered equipment needing low standby current management

Procurement Notes

Verify the exact suffix 'TZUK' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the component is sourced from authorized distributors to avoid counterfeit parts. Check current lifecycle status as availability may be limited or subject to last-time buy notices.

Selection Notes

Select this component when dual-supervision is required in space-constrained designs. Compare threshold voltages against target rail levels to ensure proper triggering. Verify that the 180 ms reset delay aligns with system startup requirements. Confirm SOT-23-5 footprint compatibility with existing PCB layouts.

Part Context

This part belongs to the MAX6353 family of microprocessor supervisory circuits designed for monitoring multiple power rails. These devices are engineered for portable applications due to their low supply current and small package size. The family typically offers various threshold options and packaging configurations to suit diverse design needs.

Replacement Considerations

Check for direct pin-to-pin replacements within the MAX6353 series with different suffixes. Verify equivalent dual-supervisor ICs from other manufacturers if specific thresholds differ. Ensure replacement parts maintain compatible output drive strength and reset delay characteristics.