BU4820FVE-TR

Supervisors Overview

The BU4820FVE-TR is a CMOS voltage detector IC manufactured by Rohm Semiconductor, designed for monitoring single-channel power supply voltages. It features an open-drain output with low-active reset functionality and operates within a supply voltage range of 0.7V to 7V. The device provides a typical under-voltage detection threshold of 2.0V with a precision of ±1%. It includes adjustable reset delay timing and maintains a hysteresis voltage defined as Vdet multiplied by 0.05. The component supports a wide operating temperature range from -40°C to +125°C and consumes minimal current, specified at 0.40μA in the active state and 0.55μA in the off state when Vdet equals 4.8V.

Supervisors Feature Summary

• Provides precise under-voltage detection with adjustable reset delay timing for system stability
• Features low-power CMOS architecture suitable for battery-operated applications
• Offers open-drain output compatible with various logic families

Supervisors Applications

• Portable electronic devices requiring low standby current
• Microcontroller system supervision
• Battery-powered equipment monitoring

Supervisors Procurement Notes

Verify the exact suffix and package configuration against the official datasheet before procurement, as ordering numbers may vary. Confirm RoHS compliance status and environmental certifications required for your specific region. Ensure the selected variant matches the required detection voltage and output characteristics for your circuit design.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with adjustable delay is required. Consider the 2.0V threshold and ±1% accuracy for standard logic levels. Evaluate the VSOF-5 package size constraints and ensure the operating temperature range meets your application's environmental conditions.

Supervisors Part Context

This part belongs to the BU48xx series of voltage detectors from Rohm Semiconductor. These components are engineered for general-purpose power management tasks, offering high reliability and compact packaging. The series is widely used in consumer electronics and industrial control systems where space efficiency and low power consumption are critical design parameters.

Supervisors Replacement Considerations

BD5223G-1 is listed as a similar specification replacement option.