BD46305G-TR

Overview

The BD46305G-TR is a voltage detector manufactured by Rohm Semiconductor, designed for monitoring single-channel power supply voltages. It features a detection threshold of 3V with a precision of ±1%. The device provides a low-active reset output with a fixed delay timer of 50ms and supports manual reset functionality. Operating within a supply voltage range of 0.95V to 10V, it is housed in a compact 5-SSOP (SC-74A) surface-mount package. The component operates reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Monitors a single input voltage channel against a fixed 3V threshold
• Provides a low-active push-pull or CMOS reset output signal
• Includes a fixed 50ms reset delay timer to ensure stable operation
• Supports manual reset control for system initialization

Applications

• Embedded systems requiring reliable power-on reset sequences
• Microcontroller unit (MCU) power supply supervision
• Industrial control equipment voltage monitoring
• Consumer electronics power management circuits

Procurement Notes

Verify the current lifecycle status before procurement, as this part may be discontinued or subject to last-time buy restrictions. Confirm that the 5-SSOP package dimensions match your PCB footprint requirements. Ensure the 3V detection threshold aligns with your specific circuit design needs. Check for RoHS compliance documentation if required by your manufacturing standards. Validate availability through authorized distributors due to potential obsolescence.

Selection Notes

Select this component when a fixed 3V detection threshold is required for single-channel voltage monitoring. Consider the 50ms fixed delay timer for applications needing guaranteed reset stability. The manual reset feature allows for system re-initialization without external components. Verify compatibility with the 0.95V to 10V operating voltage range. Evaluate the 5-SSOP package size constraints for your enclosure design.

Part Context

This component belongs to the BD46xxx series of voltage detectors from Rohm Semiconductor. It is designed for general-purpose power supply supervision in electronic devices. The series offers various detection thresholds to accommodate different logic levels. The BD46305G-TR specifically targets applications requiring a 3V reference point with standard reset timing characteristics.

Replacement Considerations

The BD5230G-1TR is listed as a manufacturer-recommended replacement. Note differences in output type and delay adjustability when substituting.