BU4847FVE-TR

Supervisors Overview

The BU4847FVE-TR is a CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features a fixed under-voltage detection threshold of 4.7 V with a precision accuracy of ±1%. The device utilizes an open-drain output configuration and operates within a reset active voltage range of 0.7 V to 7 V. It is housed in a compact VSOF5 package (1.6x1.6 mm) and supports surface-mount installation. The component functions across an extended temperature range from -40°C to +125°C, ensuring reliable performance in industrial environments.

Supervisors Feature Summary

• CMOS technology enables ultra-low static current consumption for battery-powered applications
• Fixed threshold voltage detection eliminates the need for external resistor networks
• Open-drain output interface allows flexible connection to various logic families
• Compact VSOF5 package design facilitates high-density PCB layout

Supervisors Applications

• Portable electronic devices requiring low standby current
• Industrial control systems operating in extreme temperatures
• Consumer electronics with limited board space constraints
• Battery management circuits needing precise voltage supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance documentation matches specific production batches. Validate package markings against official datasheet specifications to prevent counterfeit substitution. Request original test reports if used in safety-critical designs.

Supervisors Selection Notes

Evaluate thermal dissipation requirements as power dissipation reaches 210 mW. Compare hysteresis characteristics against system noise immunity needs. Ensure input voltage limits align with source supply variations. Consider pinout compatibility when replacing existing designs with similar supervisory components.

Supervisors Part Context

This component belongs to the BU48xx series of standard voltage detectors from ROHM Semiconductor. It serves as a dedicated power supply monitor within the broader PMIC category. The part represents a specialized solution for simple reset generation without complex timing features.

Supervisors Replacement Considerations

BD5247G-1TR is documented as a recommended replacement with similar specifications.