BU4946FVE-TR

Supervisors Overview

The BU4946FVE-TR is a single-channel voltage detector manufactured by ROHM Semiconductor, designed for power supply support applications. It operates within a supply voltage range of 0.7V to 7V and features a fixed detection threshold of 4.6V with a precision of ±1%. The device utilizes a CMOS output type and includes a hysteresis voltage defined as VDET x 0.05. It is housed in a VSOF5 package (1.6x1.6mm) and supports an operating temperature range from -40°C to 125°C.

Supervisors Feature Summary

• CMOS voltage detection circuit with push-pull/totem pole output capability
• Fixed 4.6V detection threshold with high accuracy
• Compact VSOF5 surface-mount packaging

Supervisors Applications

• Power supply monitoring systems
• Microprocessor reset circuits
• Battery backup switching protection

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance and lead time constraints for last-time buy scenarios. Ensure storage conditions maintain moisture sensitivity levels appropriate for the VSOF5 package during handling and reflow processes.

Supervisors Selection Notes

Select this component when a fixed 4.6V threshold is required without adjustable settings. Consider the CMOS output drive strength and low current consumption characteristics. Evaluate thermal performance within the specified -40°C to 125°C range for industrial or automotive environments if applicable.

Supervisors Part Context

Part of the BU4946 series of standard voltage detectors. Shares family traits like CMOS technology and low power consumption. Distinct from BD5246G-1 which offers open-drain output and different package dimensions.

Supervisors Replacement Considerations

BD5246G-1 is listed as a similar specification replacement with comparable 4.6V threshold but differs in output type (open drain vs CMOS) and package (SSOP5 vs VSOF5). Verify pin compatibility and electrical characteristics before substitution.

Supervisors FAQ

What is the output configuration of the BU4946FVE-TR?

It features a CMOS output type with push-pull/totem pole capability.

Does the BU4946FVE-TR include a manual reset function?

No, it does not have a manual reset feature.