BD45465G-TR

Overview

The BD45465G-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring single-input power supply voltages. It features a fixed threshold detection voltage of 4.6 V with a precision of ±1%. The device provides an open-drain output and includes a manual reset function. It operates within a supply voltage range up to 10 V and maintains a low static current consumption of 850 nA at the detection voltage. The reset delay time is fixed at 50 ms. The component is housed in an SSOP-5 package and supports surface-mount installation. It functions reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Fixed 4.6 V under-voltage detection threshold with high accuracy
• Low static current consumption for energy-efficient operation
• Manual reset capability for controlled system recovery
• Open-drain output configuration for flexible interfacing

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance documentation matches specific production batches. Check for alternative sourcing options as standard inventory may be limited. Ensure handling procedures adhere to electrostatic discharge protection standards during assembly.

Selection Notes

Select this component when a fixed 4.6 V threshold is required without adjustable settings. Consider the open-drain output compatibility with downstream logic levels. Evaluate the 50 ms reset delay against system startup timing requirements. Verify that the SSOP-5 package fits the available PCB footprint constraints.

Part Context

This part belongs to the BD45 series of supervisory circuits from ROHM Semiconductor. It is specifically engineered for applications requiring reliable voltage monitoring with minimal power impact. The series is known for integrating precise detection thresholds with low standby current characteristics suitable for battery-operated devices.

Replacement Considerations

The BD5246G-1 is listed as a similar level replacement with the same SSOP-5 package. Note that the BD5246G-1 offers adjustable delay times compared to the fixed delay of the BD45465G-TR. Verify electrical parameter compatibility before substitution.