BU4812FVE-TR

Supervisors Overview

The BU4812FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an open-drain output and operates within a supply voltage range of 0.9 V to 7 V. The device provides a typical under-voltage detection threshold of 1.2 V with a precision of ±1%. It consumes a maximum operating current of 550 nA and supports an adjustable reset delay timer. The component is housed in a VSOF-5 surface-mount package and functions reliably across an extended temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS technology enables ultra-low power consumption suitable for battery-operated systems
• Open-drain output interface allows flexible connection to various logic families
• Adjustable reset delay timer ensures stable system initialization during power transitions

Supervisors Applications

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

Supervisors Procurement Notes

This component is officially listed as obsolete or end-of-life by the manufacturer. Verify availability through authorized distributors for last-time-buy opportunities. Confirm RoHS compliance status and check for recommended replacement parts such as the BD5212G-1 series before finalizing procurement plans.

Supervisors Selection Notes

Select this part when a fixed 1.2 V threshold is required with adjustable timing. Ensure the VSOF-5 package fits the PCB layout constraints. Compare against the BD5212G-1 series for similar specifications if new designs are considered, noting potential differences in reset delay adjustability and package dimensions.

Supervisors Part Context

The BU4812FVE-TR belongs to the BU48xxFVE series of standard voltage detectors. This family focuses on low-cost, low-power supervision solutions for general-purpose applications. The suffix TR indicates tape-and-reel packaging for automated assembly processes.

Supervisors Replacement Considerations

The BD5212G-1 is documented as a similar specification replacement. Verify pin compatibility and electrical parameter alignment, particularly regarding the adjustable reset delay feature present in the successor model.