BU4934F-TR

Supervisors Overview

The BU4934F-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 3.4 V with an overvoltage detection threshold of 3.434 V and accuracy of 1%. The device operates within a supply voltage range up to 7 V and consumes a typical static current of 500 nA. It provides a single input monitoring capability with a CMOS output type, lacking manual reset, watchdog timer, or chip enable functions. The component is housed in an SOP-4 package and supports operation across a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• CMOS output interface for direct logic integration
• Single-channel voltage monitoring without manual reset
• Low power consumption suitable for battery-operated systems

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing voltage supervision
• General-purpose supervisory circuits in consumer electronics

Supervisors Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors as standard stock may be limited. Ensure design updates account for end-of-life transitions if long-term production support is required.

Supervisors Selection Notes

Select this part for applications requiring a fixed 3.4 V threshold with high precision. Consider the SOP-4 package constraints for PCB layout. Evaluate alternative active components if new design recommendations are mandatory due to obsolescence.

Supervisors Part Context

This component belongs to the BU4934F series of standard voltage detectors. It is manufactured by ROHM Semiconductor and serves as a specialized integrated circuit for monitoring power supply levels in compact electronic designs.

Supervisors Replacement Considerations

BD5234G-1TR is listed as a recommended replacement with similar specifications.