BD5247G-TR

Overview

The BD5247G-TR is a single-channel voltage detector IC manufactured by Rohm Semiconductor, designed for supervisory circuit applications. It features an open-drain or open-collector output with a low-active reset signal. The device monitors a supply voltage threshold of 4.7V and operates within a temperature range of -40°C to 105°C. Packaged in a compact 5-SSOP (SC-74A/SOT-753) surface-mount format, it is supplied in tape and reel quantities. This component is classified as obsolete and not recommended for new designs.

Feature Summary

• Provides precise under-voltage detection with a fixed threshold voltage.
• Features an open-drain or open-collector output compatible with various logic families.
• Delivers a low-active reset signal to ensure system stability during power fluctuations.

Applications

• Microprocessor reset circuits
• Power supply monitoring systems
• Embedded controller supervision

Procurement Notes

Verify component obsolescence status before integration, as this part is no longer recommended for new designs. Confirm package integrity and pinout compatibility with existing PCB layouts. Check for available surplus stock from authorized distributors if immediate replacement is required. Ensure RoHS compliance documentation aligns with current regulatory standards for the target market.

Selection Notes

Select this component only for legacy system maintenance or repair where the original design specifications are mandatory. Evaluate alternative parts from the same manufacturer family if new production is planned. Consider thermal performance and output drive capabilities against load requirements. Verify that the fixed detection voltage meets the specific power rail monitoring needs of the application.

Part Context

This device belongs to the BD52xx series of voltage detectors from Rohm Semiconductor. It shares functional similarities with other members of the family but is distinguished by its specific 4.7V threshold and open-drain output configuration. The series is known for providing reliable supervision in portable and industrial electronic devices requiring stable power management.

Replacement Considerations

The BD4847G-TR is documented as a parameter-equivalent substitute. Both components share similar detection voltages and package types. Verify electrical characteristics and pinout compatibility before swapping. Other family members may offer different thresholds or output types.