MAX6466XR23+T

Overview

The MAX6466XR23+T is a single-channel ultra-low-power voltage monitor from the MAX6466 family, manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.6V to 6V and features a fixed threshold voltage of 2.3V. The device provides an active-low, open-drain output with a minimum reset timeout period of 150ms. It exhibits high accuracy with a 2.5% threshold tolerance and consumes only 3.5µA of quiescent current. The component is housed in a compact SC-70-3 package and supports operation across an extended temperature range of -40°C to +125°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Fixed internal threshold voltage eliminates external resistor adjustments
• Internal hysteresis prevents output chatter during slow input transitions
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable consumer electronics requiring low standby current
• Battery-powered instrumentation and measurement devices
• Microprocessor system supervision for brown-out protection
• Automotive electronic modules operating in harsh thermal environments

Procurement Notes

Verify the specific suffix 'R23' confirms the 2.3V threshold setting against your schematic requirements. Confirm the 'T' designation indicates tape-and-reel packaging if automated assembly is planned. Check current lifecycle status as availability may vary by region. Ensure RoHS compliance documentation matches your manufacturing standards. Validate that the SC-70-3 footprint aligns with your PCB layout constraints.

Selection Notes

Select this component when a fixed 2.3V monitoring point is required without external precision resistors. Choose the MAX6466 series over faster detectors if a minimum 150ms reset delay is acceptable for system stability. Consider the SC-70-3 package size relative to available board real estate. Evaluate the 3.5µA current draw against total system power budgets for long-term battery life optimization.

Part Context

This part belongs to the MAX6461–MAX6466 family of supervisory circuits designed for monitoring battery and system voltages. The family integrates precision bandgap references and comparator circuits to provide reliable reset signals. The MAX6466 variant specifically offers microprocessor supervision capabilities with defined timeout periods, distinguishing it from the faster voltage detector variants in the same series.

Replacement Considerations

Cross-reference other MAX6466 variants with different threshold suffixes if the 2.3V trip point does not match design needs. Verify pinout compatibility with alternative SC-70-3 supervisors from other manufacturers before substitution.