BD46452G-TR

Overview

The BD46452G-TR is a voltage detector IC from ROHM Semiconductor featuring a fixed delay time. It has an under-voltage detection threshold of 4.5V with ±1% precision. The reset active voltage range spans 0.95V to 10V, utilizing a CMOS output type. The device includes a manual reset function and operates within a temperature range of -40°C to 105°C. Supply status is listed as Last Time Buy.

Feature Summary

• Incorporates a built-in counter timer delay circuit eliminating the need for external capacitors
• Provides high accuracy voltage detection with low current consumption
• Supports manual reset functionality for system control

Applications

• Processor supervisor circuits
• Voltage monitoring in electronic systems
• Reset signal generation for microcontrollers

Procurement Notes

Verify supply status carefully as this component is designated as Last Time Buy. Confirm that the SSOP-5 package and CMOS output specifications align with existing design requirements before finalizing procurement decisions due to end-of-life constraints.

Selection Notes

Select this part when a fixed 200msec delay is required without external components. Ensure the 4.5V detection threshold matches the target rail voltage. Consider the CMOS output drive capability and the wide reset active voltage range for compatibility with downstream logic levels.

Part Context

This component belongs to the BD46xxx series of voltage detectors known for integrated timing features. It serves as a supervisory circuit alternative to adjustable delay models, offering simplified design implementation by removing external timing capacitors while maintaining precise voltage monitoring capabilities.

Replacement Considerations

BD5245G-1 is documented as a recommended replacement with the same SSOP-5 package. Note differences in output type (Open drain vs CMOS) and delay adjustability.