BU4323FVE-TR

Overview

The BU4323FVE-TR is a CMOS low voltage detector manufactured by ROHM Semiconductor, designed for monitoring single power supply inputs. It operates within a supply voltage range of 0.7 V to 7 V and features an adjustable reset delay time. The device provides a threshold voltage of 2.3 V with 1% accuracy and outputs a CMOS signal. It functions reliably across a temperature range of -40°C to +125°C while consuming a typical static current of 550 nA. Packaged in a VSOF-5 surface-mount format, this supervisory circuit lacks manual reset or watchdog timer capabilities.

Feature Summary

• CMOS output interface for direct logic integration
• Adjustable reset delay timing capability
• High detection accuracy of 1 percent
• Extended industrial temperature operation range

Applications

• Portable electronic device power management
• Microcontroller system supervision
• Battery operated equipment monitoring
• Embedded control circuit protection

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity upon receipt as the part utilizes small outline packaging. Validate electrical parameters against original datasheet specifications before implementation. Ensure storage conditions maintain moisture sensitivity levels appropriate for surface mount technology handling requirements.

Selection Notes

Consider the BU4323G-TR as a potential alternative within the same series offering similar voltage detection characteristics. Evaluate package compatibility when transitioning between SSOP-5 and VSOF-5 footprints. Assess current consumption requirements against the 550 nA specification for battery-sensitive designs. Review thermal performance limits to ensure suitability for high-temperature operational environments.

Part Context

This component belongs to the BU42(43)xxFVE series of voltage detectors from ROHM Semiconductor. It serves as a specialized supervisory integrated circuit for ensuring stable system operation. The family focuses on low voltage applications requiring precise threshold monitoring without complex external components.

Replacement Considerations

BU4323G-TR offers comparable detection voltage and CMOS output functionality in an SSOP-5 package.