BU4935FVE-TR

Supervisors Overview

The BU4935FVE-TR is a CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for monitoring single power supply inputs. It features a fixed threshold voltage of 3.5 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and consumes a typical static current of 500 nA. It utilizes a VSOF-5 surface-mount package and supports an operating temperature range from -40°C to +125°C. The output type is CMOS, and it lacks manual reset, watchdog timer, or battery backup switching functions.

Supervisors Feature Summary

• CMOS output interface for direct logic interfacing
• High detection accuracy with ±1% threshold tolerance
• Low quiescent current consumption for power efficiency

Supervisors Applications

• Portable electronic devices requiring low power supervision
• Battery-powered systems needing reliable voltage monitoring
• Embedded circuits utilizing standard CMOS logic levels

Supervisors Procurement Notes

This component is designated as Not Recommended for New Designs (NRND) and may be obsolete. Verify availability through authorized distributors and confirm end-of-life status before integration. Ensure the VSOF-5 package footprint matches your PCB layout constraints. Cross-reference datasheets for any final production updates.

Supervisors Selection Notes

Select this part when a fixed 3.5 V detection threshold is required with high precision. The CMOS output suits applications avoiding open-drain pull-up requirements. Consider the wide operating temperature range for harsh environments. Evaluate the low static current against system sleep mode requirements. Confirm package compatibility with existing assembly processes.

Supervisors Part Context

The BU4935FVE-TR belongs to the BU4935G series of standard voltage detectors. It provides simple power-on reset functionality without complex timing adjustments. The device is part of ROHM's portfolio of supervisory circuits aimed at compact, low-power consumer electronics. Its design focuses on reliability and precise voltage monitoring in space-constrained applications.

Supervisors Replacement Considerations

The BD5235G-1 is listed as a recommended replacement with similar specifications. Note differences in output type (Open Drain vs. CMOS) and package (SSOP-5 vs. VSOF-5). Verify electrical compatibility and physical footprint changes before substitution.