BD46465G-TR

Overview

The BD46465G-TR is a supervisory circuit voltage detector manufactured by ROHM Semiconductor. It features a fixed threshold voltage of 4.6 V with an accuracy of ±1%. The device operates within a supply voltage range up to 10 V and provides a CMOS output type. It includes a manual reset function and a fixed reset delay time of 50 ms. The component is housed in an SSOP-5 package and supports surface mount installation. It functions without a watchdog timer or battery backup switch, ensuring reliable monitoring for single-input applications across industrial temperature ranges.

Feature Summary

• Provides precise voltage monitoring with a fixed detection threshold and high accuracy
• Includes manual reset capability for controlled system recovery
• Features a fixed delay timer to prevent false resets during power transitions
• Utilizes low static current consumption for energy-efficient operation

Applications

• Microprocessor system reset circuits
• Portable equipment power management
• Industrial control system supervision
• Battery-powered device voltage monitoring

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 compatibility with the required 4.6 V threshold and CMOS output logic levels. Check for RoHS compliance documentation if environmental regulations apply. Validate that the manual reset feature meets the system design requirements.

Selection Notes

Select this component when a fixed 4.6 V detection threshold is required with CMOS output compatibility. Consider the 50 ms fixed delay for noise immunity against transient voltage drops. Evaluate the manual reset functionality against systems requiring automatic recovery. Compare the SSOP-5 package size constraints with available board space. Assess the operating temperature range suitability for the intended environment.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. It is designed for general-purpose supervisory applications where precise voltage monitoring is critical. The series typically offers various threshold voltages and output types to suit different system architectures. This specific model focuses on fixed-delay performance with manual reset capabilities.

Replacement Considerations

The BD5246G-1 is listed as a recommended replacement with similar specifications. Verify package compatibility and output type differences between the CMOS output of the BD46465G-TR and the open-drain output of the BD5246G-1. Confirm that the adjustable delay feature of the replacement does not conflict with fixed-timing requirements.