BD45292G-TR

Overview

The BD45292G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor. It features a fixed detection threshold of 2.9V with an accuracy of ±1%. The device provides an open-drain output and includes a manual reset function. It operates within a supply voltage range up to 10V and has a fixed reset delay time of 200ms. The component is housed in an SSOP-5 package and supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Built-in counter timer delay circuit eliminates the need for external capacitors to set delay time.
• CMOS process technology ensures low current consumption and high detection accuracy.
• Manual reset capability allows for active system control via external input.

Applications

• Microprocessor reset circuits
• Battery-powered equipment monitoring
• Portable devices requiring stable power supervision

Procurement Notes

Verify the obsolete status and last-time-buy availability before procurement planning. Confirm that the SSOP-5 package dimensions match the target PCB footprint. Ensure the open-drain output configuration aligns with the downstream logic requirements. Check for RoHS compliance documentation if required by specific manufacturing standards.

Selection Notes

Select this component when a fixed 2.9V threshold and manual reset are required. The fixed 200ms delay simplifies design by removing external timing components. Consider the open-drain output type for compatibility with various logic families. Verify that the 10V maximum supply voltage meets the system's operational limits.

Part Context

This part belongs to the BD45 series of reset ICs, which utilize CMOS processes for efficiency. The series offers a wide range of detection voltages in 0.1V steps. The BD45292G-TR specifically targets applications needing precise voltage monitoring with minimal external component count.

Replacement Considerations

BD5229G-1TR is listed as a recommended replacement with the same SSOP-5 package. Note that the replacement features adjustable delay time instead of fixed delay and lacks manual reset functionality. Verify pinout compatibility and electrical parameter differences before substitution.