BU4310G-TR

Overview

The BU4310G-TR is a voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It features a typical under-voltage detection voltage of 1.0 V and a precision of ±1%. The reset active voltage range spans from 0.7 V to 7 V. The output type is CMOS, and it includes an adjustable reset delay timer. The circuit current is 0.40 μA when ON (at VDET=4.8 V) and 0.55 μA when OFF. The operating temperature range is -40°C to 125°C. It is housed in an SSOP5 package.

Feature Summary

• Adjustable reset delay timer functionality
• CMOS output type with low power consumption
• Wide reset active voltage range

Applications

• Portable equipment requiring low voltage monitoring
• Battery-powered devices needing undervoltage detection
• General purpose supervisory circuits

Procurement Notes

Verify the supply status as Not Recommended for New Designs before procurement. Confirm the package type is SSOP5 and check for RoHS compliance. Ensure the ordering part number matches the required tape and reel quantity. Validate that the adjustable delay feature meets specific timing requirements.

Selection Notes

Select this component for applications requiring precise undervoltage detection with customizable reset delays. Consider the low standby current for battery-operated systems. Verify compatibility with the system's voltage range and temperature constraints. Compare with recommended alternatives if new design support is critical.

Part Context

This part belongs to the BU43xxG series of voltage detectors. It is designed for low-voltage monitoring in portable electronics. The manufacturer indicates it is produced to support existing customers but is not recommended for new designs. Similar parts include the BD5210G-1.

Replacement Considerations

The BD5210G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence regarding the adjustable delay and output characteristics.