BU4823FVE-TR

Supervisors Overview

The BU4823FVE-TR is a standard voltage detector manufactured by Rohm Semiconductor, currently designated as a Last Time Buy item. It features an under-voltage detection threshold of 2.3V with ±1% precision and operates within a reset active voltage range of 0.7V to 7V. The device utilizes an open-drain output type with a low-active reset state. Power consumption is specified at 0.40μA in the ON state and 0.55μA in the OFF state, both measured at Vs=4.8V. Hysteresis is set at VDET x 0.05. It is housed in a VSOF5 package and supports an operating temperature range from -40°C to 125°C.

Supervisors Feature Summary

• Provides precise under-voltage monitoring with a typical detection threshold of 2.3V and high accuracy.
• Features an open-drain output configuration suitable for interfacing with various logic families.
• Designed for ultra-low power applications with minimal current consumption in both active and standby states.
• Includes built-in hysteresis to prevent output oscillation during voltage transitions near the threshold.

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing reliable voltage supervision
• General-purpose circuit protection against under-voltage conditions

Supervisors Procurement Notes

This component is officially classified as a Last Time Buy product by the manufacturer. Procurement should be limited to final replacement needs or long-term maintenance requirements, as future production will cease. Verify specific ordering suffixes and packaging details directly with authorized distributors to ensure compatibility with existing inventory and supply chain strategies.

Supervisors Selection Notes

Select this part when a fixed 2.3V detection threshold and open-drain output are required. Consider the BD5223G-1 series if SSOP5 packaging or adjustable delay timers are needed instead. Ensure the VSOF5 package dimensions fit the design constraints. Verify that the low-active reset polarity aligns with the target system's reset input requirements.

Supervisors Part Context

The BU4823FVE-TR belongs to Rohm's standard voltage detector family, designed for simple supervisory functions without complex timing features. It serves as a cost-effective solution for basic power monitoring tasks where high precision and low quiescent current are prioritized over programmable delays or watchdog capabilities.

Supervisors Replacement Considerations

The BD5223G-1 is listed as a recommended replacement with similar specifications. Note that the BD5223G-1 uses an SSOP5 package and offers an adjustable delay timer, unlike the fixed-delay-free BU4823FVE-TR. Pinout compatibility should be verified before substitution.