BU4915FVE-TR

Supervisors Overview

The BU4915FVE-TR is a standard CMOS voltage detector IC from ROHM Semiconductor, designed for low-voltage monitoring applications. It features a typical under-voltage detection threshold of 1.5V with a precision of ±1%. The device operates within a reset active voltage range of 0.7V to 7V and utilizes a CMOS output type. Key electrical parameters include a circuit current of 0.40µA (ON) and 0.55µA (OFF) at VDET=4.8V, with a hysteresis voltage defined as VDET x 0.05. It lacks manual reset, watchdog timer, and adjustable delay timer functions. The component is housed in an SSOP5 package and supports RoHS compliance.

Supervisors Feature Summary

• CMOS output structure providing direct logic interface capability without external pull-up requirements.
• Ultra-low current consumption design optimized for battery-powered and energy-efficient systems.
• Fixed detection voltage with high accuracy tolerance ensuring reliable threshold monitoring.
• Integrated hysteresis function to prevent output oscillation during slow input voltage transitions.

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing low quiescent current supervision
• General-purpose microprocessor reset circuits
• Low-voltage system monitoring in consumer electronics

Supervisors Procurement Notes

Verify the specific suffix FVE against official ROHM documentation to confirm the VSOF-5 package variant and tape-and-reel configuration. Confirm RoHS status and lead-free compliance through the manufacturer's latest environmental declaration. Ensure the part number matches the exact detection voltage and output type required for the target application design.

Supervisors Selection Notes

Select this component when a fixed 1.5V detection threshold with CMOS output is required. Consider the ultra-low current consumption for battery life extension. Verify that the absence of manual reset and watchdog features aligns with the system architecture. Compare package dimensions and thermal characteristics against available PCB space constraints.

Supervisors Part Context

The BU4915FVE-TR belongs to the BU49xx series of standard CMOS voltage detectors. This series offers various detection voltages in 0.1V steps. The FVE suffix typically denotes the VSOF-5 surface-mount package. The TR suffix indicates tape-and-reel packaging for automated assembly. This family focuses on high accuracy and low power consumption for portable applications.

Supervisors Replacement Considerations

BD5215G-1 is listed as a similar specification replacement with comparable detection voltage and package options. Verify pin compatibility and output type differences before substitution. Check if the alternative meets all thermal and electrical requirements of the original design.

Supervisors FAQ

Does the BU4915FVE-TR include a manual reset function?

No, the BU4915FVE-TR does not support manual reset functionality.

What is the typical hysteresis voltage for this component?

The hysteresis voltage is specified as VDET multiplied by 0.05.

Is a watchdog timer integrated into the BU4915FVE-TR?

No, the BU4915FVE-TR does not include a watchdog timer.