BD46472G-TR

Overview

The BD46472G-TR is a voltage detector with a fixed delay time, currently in the Last Time Buy status. It features a typical under-voltage detection voltage of 4.7V with ±1% precision. The reset active voltage range spans from 0.95V to 10V. It utilizes a CMOS output type and includes a manual reset function. The fixed reset delay timer is set at 200msec. Operating current is approximately 0.80μA (ON) and 0.85μA (OFF) at VDET=4.8V. Hysteresis is VDET x 0.05. Output currents are 1.2mA (Low Vol) and 5mA (High Vol). It operates between -40°C and 105°C in an SSOP5 package.

Feature Summary

• CMOS output interface for digital logic compatibility
• Manual reset capability for system control
• Fixed 200msec delay timer for stable power-up sequencing

Applications

• Power supply monitoring in industrial equipment
• Microprocessor reset circuits
• Battery-powered device supervision

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance documentation matches specific batch requirements. Check datasheet revisions for any final design-in notes before implementation. Ensure replacement strategies account for the Last Time Buy designation to prevent future supply chain disruptions.

Selection Notes

Select this component when a fixed delay and manual reset are required alongside CMOS outputs. Compare against adjustable delay alternatives if timing flexibility is needed. Verify that the 4.7V threshold aligns with target system voltages. Consider the operating temperature range and package constraints for PCB layout integration.

Part Context

Part of the BD46 series voltage detectors from Rohm Semiconductor. Designed for supervisory applications requiring precise voltage monitoring. The BD46472G-TR variant specifically offers a fixed delay and manual reset feature set within a compact SSOP5 package.

Replacement Considerations

BD5247G-1TR is listed as a recommended replacement with the same package. Note differences in output type (Open drain vs CMOS) and delay adjustability.