NCV33164D-5R2

Supervisors Overview

The NCV33164D-5R2 is a micropower undervoltage sensing circuit designed for portable microprocessor systems. It operates within a supply voltage range of 1 V to 6.5 V, with a maximum monitored voltage of 5 V. The device features an adjustable reset delay time and an open collector/drain output type. It supports surface mount installation in an SOIC-8 package. Operating temperatures range from -40°C to +125°C. The quiescent current is specified at 390 uA, with a power dissipation of 625 mW. The undervoltage threshold is approximately 4.61 V, and the overvoltage threshold is 4.7 V.

Supervisors Feature Summary

• Provides undervoltage detection for 5.0 V systems with active low open collector output
• Features adjustable reset delay time for flexible timing control
• Qualified for automotive applications requiring site and control changes
• Includes internal clamp diode for discharging delay capacitor

Supervisors Applications

• Portable microprocessor based systems
• Battery powered devices requiring extended life
• Low voltage detection circuits
• Reset controllers in embedded systems

Supervisors Procurement Notes

Verify the specific suffix R2 indicates reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer declarations. Check for AEC-Q100 qualification documentation if automotive grade requirements are mandatory. Ensure the SOIC-8 package dimensions match PCB footprint specifications. Validate that the 6.5 V maximum operating voltage aligns with system supply rails.

Supervisors Selection Notes

Select this component when monitoring 5 V supplies in space-constrained designs. The SOIC-8 package offers a compact solution compared to through-hole alternatives. Consider the 390 uA quiescent current impact on overall battery life. Verify that the open collector output interface matches the downstream logic requirements. Ensure the -40°C to +125°C temperature range covers the intended operational environment.

Supervisors Part Context

This part belongs to the MC33164 series of micropower undervoltage sensing circuits. The NCV prefix denotes automotive qualification and controlled manufacturing sites. It serves as a reset controller for microprocessors where low standby current is critical. The series includes variants for different voltage thresholds and packages.

Supervisors Replacement Considerations

MC33164D-5R2G is a non-automotive grade equivalent with identical electrical characteristics. MC34164D-5R2G represents the commercial version of the same functional circuit. Verify package compatibility and pinout alignment before substitution.