BD5246G-TR

Overview

The BD5246G-TR is a single-channel voltage detector manufactured by Rohm Semiconductor, designed for monitoring power supply integrity in electronic systems. It features an adjustable delay timer and operates within a reset active voltage range of 0.8V to 6V. The typical under-voltage detection threshold is set at 4.6V with a precision of ±0.9%. The device utilizes an open-drain output type and provides a low-active reset signal. It supports a maximum operating voltage of 10V and functions reliably across a temperature range of -40°C to +105°C.

Feature Summary

• Integrates an adjustable delay timer to prevent false resets during power-up transients.
• Provides precise voltage monitoring with high accuracy for reliable system supervision.
• Features an open-drain output configuration compatible with various logic families.

Applications

• Monitoring main power rails in embedded control systems
• Supervising battery-powered devices requiring stable voltage thresholds
• Protecting microcontroller units from brown-out conditions

Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with existing board layouts. Confirm that the component status aligns with long-term availability requirements, as this part may be subject to lifecycle changes. Cross-reference pin assignments and electrical characteristics with current design specifications before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 4.6V threshold with adjustable timing is required for single-rail supervision. Ensure the open-drain output capability matches the pull-up requirements of the connected logic interface. Verify that the operating voltage range covers the minimum and maximum supply voltages expected in the target application environment.

Part Context

This component belongs to the BD52xx series of voltage detectors from Rohm Semiconductor. It is specifically engineered for applications requiring precise under-voltage detection with customizable reset delays. The device is housed in a compact 5-SSOP package, suitable for space-constrained surface-mount designs.

Replacement Considerations

BD48E46G-MTR and BD5246G-2MTR are listed as parameter-equivalent alternatives by the manufacturer.