BU4833F-TR

Supervisors Overview

The BU4833F-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply levels in electronic circuits. It features an open-drain output and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection threshold is set at 3.3 V with a precision of ±1%. The device draws a circuit current of 0.40 μA when ON and 0.55 μA when OFF at a detection voltage of 4.8 V. It includes hysteresis defined as VDET x 0.05 and supports L-output currents of 3.3 mA (LowVol) and 6.5 mA (HighVol). The component functions across a temperature range of -40°C to 125°C and is housed in a SOP4 package.

Supervisors Feature Summary

• Provides precise voltage supervision with high accuracy thresholds
• Features low power consumption suitable for battery-operated systems
• Offers flexible reset operation within a wide input voltage range

Supervisors Applications

• Power supply monitoring in portable devices
• System reset generation for microcontrollers
• Battery management circuits

Supervisors Procurement Notes

Verify the specific suffix and package type against the official datasheet before ordering. Confirm that the component meets all required environmental and electrical specifications for the intended application. Check for any obsolescence notices or last-time buy status from the manufacturer. Ensure compatibility with existing board layouts and assembly processes. Validate RoHS compliance requirements if applicable to the final product.

Supervisors Selection Notes

Select this component based on its specific 3.3 V detection threshold and ±1% precision. Consider the open-drain output configuration and available drive current for interfacing with downstream logic. Evaluate the operating temperature range to ensure suitability for the environmental conditions. Compare the package dimensions against the available PCB space constraints. Review the power consumption characteristics to determine impact on overall system efficiency.

Supervisors Part Context

This part belongs to the BU4833 series of standard voltage detectors from ROHM Semiconductor. These components are designed for reliable power management in various electronic applications. The series offers different detection voltages to suit diverse system requirements. The BU4833F-TR specifically targets applications requiring a 3.3 V monitoring level. It represents a solution for maintaining system stability during power fluctuations.

Supervisors Replacement Considerations

BD5233G-1 is listed as a recommended replacement with similar specifications.