BU4823F-TR

Supervisors Overview

The BU4823F-TR is a standard voltage detector manufactured by Rohm Semiconductor, designed for monitoring power supply voltages. It features an open-drain output type and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection voltage is 2.3 V with a precision of ±1%. The device does not include a reset delay timer, manual reset, or watchdog timer functions. Circuit current consumption is 0.40 μA in the ON state and 0.55 μA in the OFF state at VDET=4.8V. Hysteresis voltage is defined as VDET x 0.05. It supports a temperature range from -40°C to 125°C and is housed in a SOP4 package.

Supervisors Feature Summary

• Provides precise under-voltage detection with high accuracy for reliable system supervision.
• Features low power consumption suitable for battery-operated applications.
• Includes hysteresis function to prevent output oscillation during voltage transitions.

Supervisors Applications

• Portable electronic devices requiring power supply monitoring
• Battery-powered systems needing under-voltage protection
• General-purpose circuit supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and packaging specifications (taping) prior to order. Check replacement availability as this part is discontinued for new designs. Ensure thermal and electrical parameters match application requirements before procurement.

Supervisors Selection Notes

Select this component for applications requiring a fixed 2.3V threshold with open-drain output. Consider the BD5223G-1 series as a recommended replacement for new designs. Evaluate operating temperature range and package size constraints. Verify compatibility with system logic levels given the open-drain configuration.

Supervisors Part Context

The BU4823F-TR belongs to Rohm's standard voltage detector family, specifically engineered for simple reset generation. It is part of the BU48xx series, which offers various detection thresholds. This specific model is marked as Not Recommended for New Designs (NRND), indicating it is being phased out in favor of newer alternatives like the BD5223G-1.

Supervisors Replacement Considerations

The BD5223G-1 is listed as a similar level replacement with the same package. Verify if adjustable delay or other enhanced features of the replacement are required for the design.