BU4815FVE-TR

Supervisors Overview

The BU4815FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply lines. It operates within a maximum supply voltage of 7 V and features an open-drain output type with a reset active state of low. The device detects under-voltage conditions with a typical threshold voltage of 1.5 V and maintains a precision of ±1%. It includes adjustable reset delay timing and offers hysteresis defined as Vdet multiplied by 0.05. The component functions across a temperature range from -40°C to +125°C, consuming 400 nA in the on-state and 550 nA in the off-state at Vdet=4.8V.

Supervisors Feature Summary

• CMOS technology enables ultra-low current consumption for battery-powered applications
• Open-drain output provides flexible interface compatibility with various logic families
• Adjustable reset delay timer allows customization of response timing
• High accuracy detection ensures reliable system supervision under varying load conditions

Supervisors Applications

• Portable electronic devices requiring extended battery life
• Microprocessor system power supply monitoring
• Industrial control units operating in wide temperature environments
• Automotive electronics non-critical subsystems

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. Check for alternative sourcing options as standard inventory may be limited. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to maintain package integrity before assembly.

Supervisors Selection Notes

Select this component when precise low-voltage detection is required with minimal quiescent current draw. The adjustable delay feature suits designs needing controlled reset sequencing. Verify that the open-drain output configuration aligns with the target microcontroller input requirements. Consider the VSOF-5 package dimensions for PCB layout constraints and thermal management needs during integration.

Supervisors Part Context

This part belongs to the BU48 series of standard voltage detectors from ROHM Semiconductor. It shares architectural similarities with other members like BU4816FVE-TR and BU4839FVE-TR, differing primarily in threshold voltage settings. The series utilizes CMOS processes to achieve low power operation while maintaining high accuracy specifications suitable for general-purpose supervisory applications.

Supervisors Replacement Considerations

BD5215G-1 is listed as a similar specification replacement with comparable voltage detection characteristics.