BU4822FVE-TR

Supervisors Overview

The BU4822FVE-TR is a voltage detector IC from Rohm Semiconductor, classified under PMIC supervisory circuits. It features an open-drain output and monitors a single input channel with a threshold voltage of 2.8 V. The device supports adjustable reset delay timers and operates within a supply voltage range of 0.9 V to 7 V. It maintains high accuracy with 1% precision and consumes only 550 nA of operating current. The component is housed in a VSOF-5 surface-mount package and functions reliably across a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• Provides low-voltage detection with adjustable reset delay timing capabilities
• Features open-drain output configuration for flexible interface integration
• Designed for ultra-low power consumption suitable for battery-operated systems

Supervisors Applications

• Portable electronic devices requiring low-voltage monitoring
• Battery-powered equipment needing power-fail detection
• Embedded systems utilizing microcontroller reset supervision

Supervisors Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure that any substitute parts meet the required electrical specifications and package dimensions. Check for RoHS compliance and environmental certifications relevant to your region. Validate lead times as end-of-life products may have limited stock.

Supervisors Selection Notes

Select this component when a fixed 2.8 V threshold with adjustable delay is required. Consider the VSOF-5 package for space-constrained PCB layouts. Evaluate the low quiescent current for energy-sensitive applications. Compare against newer series if long-term supply stability is critical. Ensure the open-drain output compatibility matches the target system logic levels.

Supervisors Part Context

This part belongs to the BU42(43)xxFVE series of voltage detectors. It serves as a specialized supervisory circuit within Rohm's power management portfolio. The device is designed for simple, cost-effective voltage monitoring solutions. It complements other variants in the family offering different thresholds and packages.

Supervisors Replacement Considerations

BD5222G-1TR is listed as a similar specification replacement.