BD5251G-TR

Overview

The BD5251G-TR is a voltage detector IC from ROHM Semiconductor, currently in the 'Last Time Buy' phase. It features an adjustable delay timer and open-drain output with low active state. The typical under-voltage detection voltage is 5.1V with ±1% precision. The reset active voltage range spans 0.95V to 10V. Circuit current consumption is 0.85μA at Vdet=4.8V. It operates within a temperature range of -40°C to 105°C and is housed in an SSOP-5 package.

Feature Summary

• Adjustable delay timer functionality for customized reset timing
• Open-drain output type with low active reset state
• High accuracy voltage detection with ±1% precision

Applications

• General purpose power supply monitoring
• Microcontroller system reset circuits
• Embedded device voltage supervision

Procurement Notes

Verify end-of-life status before finalizing designs. Confirm availability through authorized channels as this component is in the last time buy phase. Ensure compatibility with existing PCB footprints and electrical requirements. Check for updated documentation regarding the recommended replacement part BD5250G-1 if long-term supply is required.

Selection Notes

Select this component when adjustable delay times are necessary for specific reset sequencing. The wide reset active voltage range allows flexibility in various supply rail configurations. Consider the low current consumption for battery-operated applications. Verify that the open-drain output interface matches the downstream logic requirements.

Part Context

This part belongs to the BD52xx series of voltage detectors from ROHM Semiconductor. It is designed for general electronic equipment requiring reliable power management. The series offers various detection voltages and features to suit different application needs. The BD5251G specifically targets applications needing precise monitoring with customizable delay characteristics.

Replacement Considerations

The BD5250G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence and parameter alignment before substitution.