BD45461G-TR

Overview

The BD45461G-TR is a voltage detector with a fixed delay time, manufactured by Rohm Semiconductor. It features an open-drain output and manual reset capability. The typical under-voltage detection voltage is 4.6V with ±1% precision. The reset active voltage range spans from 0.95V to 10V. It includes a fixed reset delay timer of 100ms. The circuit current is 0.80μA when ON (at VDET=4.8V) and 0.85μA when OFF. It operates within a temperature range of -40°C to +85°C and is housed in a 5-SSOP package.

Feature Summary

• Integrates a fixed 100ms reset delay timer for stable power-up sequencing.
• Supports manual reset functionality via dedicated input pin.
• Provides open-drain output compatible with various logic levels.
• Maintains low power consumption with microampere-level operating currents.

Applications

• Microprocessor system supervision
• Portable equipment power management
• Battery-operated device monitoring

Procurement Notes

Verify the supply status as the component may be discontinued or restricted. Confirm RoHS compliance and packaging details such as tape and reel quantity. Ensure the specific suffix matches the required delivery format. Check for obsolescence notices before finalizing procurement plans.

Selection Notes

Select this part for applications requiring a fixed delay and manual reset control. Compare against adjustable delay alternatives if timing flexibility is needed. Verify that the open-drain output suits the downstream circuit interface requirements.

Part Context

This component belongs to the BD45xxx series of voltage detectors. It is designed for general-purpose power supply monitoring in consumer and industrial electronics. The device offers high accuracy and low current consumption suitable for battery-powered systems.

Replacement Considerations

BD5246G-1 is listed as a similar level replacement with the same package type. Verify functional differences such as adjustable delay versus fixed delay before substitution.