BU4920FVE-TR

Supervisors Overview

The BU4920FVE-TR is a voltage detector IC from ROHM Semiconductor, housed in a 5-pin VSOF package. It monitors input voltages ranging from 0.9V to 4.8V with a threshold of 2.02V. The device features a CMOS output and operates within a temperature range of -40°C to +125°C. Power dissipation is rated at 210mW. This component is classified as a supervisory circuit designed for ordinary electronic equipment applications.

Supervisors Feature Summary

• Monitors supply voltage levels to ensure system stability
• Provides reset signal generation upon voltage deviation
• Operates with low power consumption characteristics

Supervisors Applications

• Audio visual equipment monitoring
• Office automation system supervision
• Telecommunication device voltage regulation

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against datasheet specifications. Check for moisture sensitivity level compliance prior to assembly. Ensure storage conditions meet manufacturer requirements to prevent degradation. Validate part marking against official ROHM documentation for accuracy.

Supervisors Selection Notes

Select this component for applications requiring precise voltage monitoring within the 0.9V to 4.8V range. Consider the 2.02V threshold for specific reset timing requirements. Evaluate the VSOF package size for space-constrained designs. Assess thermal performance given the 210mW power dissipation rating. Verify compatibility with existing CMOS logic interfaces in the target system.

Supervisors Part Context

This voltage detector belongs to the BU4920 series of supervisory circuits. It serves as a critical component for maintaining operational integrity in portable and battery-powered devices. The device complements other ROHM power management solutions by providing reliable voltage supervision without complex external components.

Supervisors Replacement Considerations

Check for direct substitutes within the BU4920 family such as BU4920G-TR or BU4925FVE-TR. Verify pinout compatibility and threshold voltage differences before substitution. Review updated datasheets for any functional changes in newer revisions.