BU4824F-TR

Supervisors Overview

The BU4824F-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 2.4 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 specified at 0.40 μA (ON) and 0.55 μA (OFF) when VDET equals 4.8 V. Hysteresis voltage is defined as VDET multiplied by 0.05. The L output current capabilities are 3.3 mA (LowVol) and 6.5 mA (HighVol). It supports a minimum operating temperature of -40 °C and a maximum of 125 °C.

Supervisors Feature Summary

• Provides precise under-voltage detection with a typical threshold of 2.4 V and ±1% accuracy.
• Features an open-drain output suitable for interfacing with various logic families.
• Operates over a wide reset active voltage range from 0.7 V to 7 V.
• Maintains low power consumption with microampere-level circuit current in both ON and OFF states.

Supervisors Applications

• Monitoring battery-powered systems for low-voltage conditions
• Supervising microprocessor reset lines in embedded controllers
• Power management circuits requiring precise voltage threshold detection

Supervisors Procurement Notes

Verify the specific ordering suffix and package variant against the latest manufacturer datasheet before procurement. Confirm that the component status aligns with project requirements, as availability may be limited. Ensure compatibility with existing PCB footprints and thermal management strategies during integration planning.

Supervisors Selection Notes

Select this component when a fixed 2.4 V detection threshold is required without additional timing features. Consider the open-drain output configuration for system compatibility. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions. Compare current consumption specifications against other available detectors if power efficiency is critical.

Supervisors Part Context

This part belongs to the BU48xx series of standard voltage detectors from ROHM Semiconductor. These devices are engineered for reliable power supervision in compact electronic applications. The series offers various detection thresholds to accommodate different voltage rails. The BU4824F-TR specifically targets applications needing a 2.4 V trip point with high precision.

Supervisors Replacement Considerations

The BD5224G-1 is listed as a similar specification replacement with the same pinout. Verify package differences and electrical parameter tolerances before substitution.