MAX6347XR43-T

Overview

The MAX6347XR43-T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single voltage input and provides an active-high, push-pull reset output. The device features a fixed reset threshold of 4.3V with a minimum power-on reset pulse width of 100ms. It operates within a supply voltage range up to 5.5V and draws a maximum supply current of 1µA. The component is housed in a space-saving SC-70-3 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Provides active-high push-pull reset signal generation
• Ultra-low power consumption suitable for portable equipment
• Factory-trimmed precision voltage monitoring thresholds

Applications

• Microprocessor system power supply supervision
• Portable digital equipment battery monitoring
• Voltage threshold detection in low-power circuits

Procurement Notes

Verify the specific suffix 'XR43' against official manufacturer documentation to confirm the exact 4.3V threshold specification. Confirm package type compatibility during integration. Check current availability status as distribution channels may list limited stock or obsolete status for this specific variant.

Selection Notes

Select this component when an active-high reset output is required rather than the open-drain configuration found in similar MAX6348 variants. Ensure the 4.3V threshold aligns with the target supply rail. Consider the SC-70-3 footprint constraints for PCB layout design.

Part Context

This part belongs to the MAX6347 series of ultra-low-power reset circuits. It shares functional similarities with the MAX6326/MAX6346 and MAX6328/MAX6348 families but differs in output stage polarity and drive capability. The series is designed to eliminate external components for standard voltage systems.

Replacement Considerations

MAX6347XR43+T: Verified lead-free equivalent with identical electrical specifications and pinout.