BD5328G-TR

Overview

The BD5328G-TR is a single-channel voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 2.8V with a precision accuracy of ±1%. The device operates within a supply voltage range of 0.95V to 10V and utilizes a CMOS output type. It is housed in a compact SSOP-5 package (SC-74A/SOT-753) suitable for surface mount installation. The component supports an adjustable delay timer and provides a low-active reset signal. It functions reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Provides precise under-voltage detection with a fixed 2.8V threshold and ±1% accuracy.
• Features an adjustable reset delay timer for customized timing control.
• Delivers a low-active reset signal via a CMOS output interface.
• Operates efficiently with ultra-low power consumption suitable for battery-powered systems.

Applications

• Portable electronic devices requiring reliable power monitoring
• Battery-operated equipment needing under-voltage protection
• Embedded systems utilizing microcontrollers or logic circuits
• Industrial control units operating in extended temperature environments

Procurement Notes

Verify the specific suffix and packaging configuration when sourcing, as availability may vary by region. Confirm that the component status aligns with current design requirements, noting potential end-of-life implications. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified for the SSOP-5 package. Cross-reference official datasheets for any updates on RoHS compliance or environmental certifications before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 2.8V detection threshold is required without manual reset functionality. It is appropriate for designs needing adjustable delay times rather than fixed delays. Consider the CMOS output drive capability and low quiescent current for power-sensitive applications. Verify that the SSOP-5 package dimensions fit the available board space and thermal management constraints.

Part Context

This part belongs to the BD53xx series of voltage detectors from ROHM Semiconductor. It is functionally similar to other parts in the family but distinguished by its specific 2.8V threshold and adjustable delay characteristics. The series is designed for general-purpose supervision in portable and industrial electronics, offering a balance of precision and low power consumption.

Replacement Considerations

The BD5228G-1TR is documented as a similar level replacement with the same pinout and package. Verify functional equivalence regarding threshold voltage and output type before substitution.