BU4816F-TR

Supervisors Overview

The BU4816F-TR is a CMOS voltage detector manufactured by Rohm Semiconductor, designed for monitoring single power supply rails. It features an open-drain output and operates within a supply voltage range of 0.7 V to 7 V. The device detects under-voltage conditions with a typical threshold of 1.6 V and offers high precision accuracy of ±1%. It functions without manual reset or watchdog timer capabilities. The component supports a wide operating temperature range from -40°C to +125°C and consumes low static current.

Supervisors Feature Summary

• Provides precise under-voltage detection with ±1% accuracy for reliable system supervision
• Features open-drain output compatible with various logic families
• Operates across a wide supply voltage range from 0.7 V to 7 V
• Supports extended industrial temperature environments up to 125°C

Supervisors Applications

• Monitoring battery-powered systems for low-voltage protection
• Supervising microprocessor power supplies in embedded controllers
• Ensuring stable operation in portable electronic devices
• Protecting memory circuits during power-down sequences

Supervisors Procurement Notes

Verify the specific suffix 'F' indicates the SOP-4 package variant distinct from other series members. Confirm RoHS compliance status as per latest manufacturer documentation. Check for end-of-life or last-time-buy notices given the product lifecycle status. Ensure compatibility with existing PCB footprint dimensions for SOP-4 packages before procurement.

Supervisors Selection Notes

Select this component when a simple, low-cost voltage monitor with high precision is required. The open-drain output allows flexible interfacing with different logic levels. Consider the low static current consumption for battery-operated applications. Verify that the absence of a delay timer meets the system's reset timing requirements.

Supervisors Part Context

This part belongs to the BU4816 standard voltage detector family from Rohm Semiconductor. It is designed as a cost-effective solution for basic power supervision tasks. The family includes variants with different detection thresholds and package options. This specific model focuses on the 1.6 V threshold application.

Supervisors Replacement Considerations

BD5216G-1TR is a recommended replacement with similar specifications but in an SSOP-5 package.