BD5253G-TR

Overview

The BD5253G-TR is a single-channel voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a fixed detection threshold of 5.3V and utilizes an open-drain output configuration. The device operates within a supply voltage range of 0.95V to 10V and maintains high accuracy with a typical precision of ±1%. Packaged in a compact SSOP-5 format, it supports surface-mount installation and functions reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Provides precise voltage supervision with a fixed 5.3V detection threshold
• Features an open-drain output suitable for interfacing with various logic families
• Operates over a wide input voltage range up to 10V
• Maintains high detection accuracy within ±1% tolerance

Applications

• Microcontroller reset circuits requiring stable power monitoring
• Logic circuit protection against under-voltage conditions
• Battery-powered systems needing reliable voltage supervision

Procurement Notes

Verify the specific suffix G-TR against official ROHM documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for SSOP-5 packages. Cross-reference the 5.3V threshold requirement with system design constraints to prevent false triggering or missed resets during normal operation fluctuations.

Selection Notes

Select this component when a fixed 5.3V threshold is required rather than adjustable delay options found in other series variants. Consider the open-drain output capability if level shifting or wired-OR configurations are needed in the design. Evaluate the ±1% accuracy specification against system tolerance requirements to ensure reliable operation under varying environmental conditions.

Part Context

This part belongs to the BD52 series of CMOS voltage detectors known for low current consumption and small package sizes. It serves as a dedicated supervisory solution for protecting sensitive digital components from unstable power conditions. The series is widely used in consumer electronics and industrial applications where space efficiency and reliable voltage monitoring are critical design parameters.

Replacement Considerations

BD52E53G offers similar functionality with adjustable delay capabilities but requires external capacitor configuration. BD5253G without the TR suffix indicates cut-tape packaging instead of reel. Verify pinout compatibility and electrical characteristics before substituting to ensure seamless integration into existing designs.