BU4813F-TR

Supervisors Overview

The BU4813F-TR is a standard voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages. It features an open-drain output and operates within a reset active voltage range of 0.7V to 7V. The typical under-voltage detection threshold is 1.3V with a precision of ±1%. The device consumes 0.40μA in the ON state and 0.55μA in the OFF state at Vdet=4.8V. It utilizes an SSOP-5 package and includes hysteresis voltage defined as Vdet x 0.05.

Supervisors Feature Summary

• Provides precise under-voltage detection with high accuracy.
• Features low power consumption suitable for battery-operated devices.
• Includes built-in hysteresis to prevent output oscillation.

Supervisors Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered systems needing low standby current
• General purpose power supply monitoring circuits

Supervisors Procurement Notes

Verify the specific suffix and package type against the official datasheet before procurement. Confirm RoHS compliance status and check for obsolescence notices such as NRND or Last Time Buy orders. Ensure the ordering part number matches the required tape and reel quantity specifications.

Supervisors Selection Notes

Select this component when a fixed 1.3V detection threshold is required. Consider the SSOP-5 package size constraints and the open-drain output capability. Evaluate the operating temperature range and supply voltage limits against system requirements.

Supervisors Part Context

This part belongs to the BU48xx series of CMOS voltage detectors. It is manufactured by ROHM Semiconductor using advanced CMOS technology to achieve ultra-low current consumption. The series is designed for compact applications where space and power efficiency are critical.

Supervisors Replacement Considerations

The BD5213G-1 is listed as a similar specification replacement. Verify pin compatibility and electrical parameter alignment before substitution.