MAX6357SVUT+T

Overview

The MAX6357SVUT+T is a triple voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors three independent power supply rails and asserts active-low reset outputs when any monitored voltage drops below its respective threshold. The device features a manual reset input, push-pull outputs, and a fixed reset delay time of 280 ms. It operates within a supply voltage range up to 5.5 V and consumes only 20 uA of quiescent current. The component is housed in a compact SOT-23-6 surface-mount package and supports an industrial operating temperature range from -40 C to +85 C.

Feature Summary

• Triple-channel voltage monitoring with factory-set thresholds for precise power supervision
• Active-low push-pull reset outputs ensuring robust signal integrity across loads
• Debounced manual reset input compatible with TTL and CMOS logic levels
• Ultra-low 20 uA supply current optimized for battery-powered applications

Applications

• Multi-rail embedded system power management
• Portable electronic device voltage supervision
• Industrial control board power sequencing
• Communication equipment backup power monitoring

Procurement Notes

Verify the specific suffix SVUT against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status through the manufacturer's certification database. Check availability as distribution channels may list limited or discontinued stock. Ensure the SOT-23-6 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when simultaneous monitoring of three distinct voltage rails is required without external comparators. The integrated manual reset feature simplifies user-initiated system recovery. Consider the 280 ms reset delay for timing-sensitive applications. Verify that the available threshold voltages align with your specific power rail specifications to ensure accurate fault detection.

Part Context

This part belongs to the MAX635x series of microprocessor supervisory circuits designed for reliable system management. The series provides multiple reset outputs and configurable thresholds in small packages. It replaces discrete solution designs by integrating multiple supervisor functions into a single chip, reducing board space and improving overall system accuracy and reliability.

Replacement Considerations

Consult the official MAX635x family datasheet for cross-reference options. Verify pin compatibility and threshold voltage alignment with alternative parts such as MAX6356 or MAX6359 variants. Ensure functional equivalence regarding reset delay times and output drive capabilities before substitution.