BU4927FVE-TR

Supervisors Overview

The BU4927FVE-TR is a standard voltage detector manufactured by Rohm Semiconductor, designed for monitoring single-channel power supply voltages. It features a CMOS output type with a low-active reset signal and operates within a supply voltage range of 0.9V to 7V. The device has a typical under-voltage detection threshold of 2.7V with a precision of ±1%. It functions without a manual reset or watchdog timer, offering a reset delay timer of 100µs. The component supports an operating temperature range from -40°C to +125°C and is housed in a compact VSOF-5 package.

Supervisors Feature Summary

• CMOS output structure providing low-active reset functionality
• Compact VSOF-5 surface-mount package design
• Wide operating supply voltage range supporting low-power applications

Supervisors Applications

• Portable electronic devices requiring battery voltage monitoring
• Microprocessor system supervision circuits
• General-purpose power supply monitoring in consumer electronics

Supervisors Procurement Notes

Verify the current lifecycle status as the component may be classified as Not Recommended for New Designs (NRND) or Last Time Buy. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure the ordering part number matches the specific tape-and-reel configuration required for your manufacturing process. Cross-reference datasheet revisions to guarantee compatibility with existing designs.

Supervisors Selection Notes

Select this component when a simple, low-cost voltage supervisor with a fixed 2.7V threshold is required. The CMOS output is suitable for direct interfacing with digital logic families. Consider the VSOF-5 package size constraints against available PCB real estate. Evaluate if the lack of adjustable hysteresis or manual reset meets the specific system reliability requirements compared to more complex supervisors.

Supervisors Part Context

This part belongs to the BU49xx series of standard voltage detectors from Rohm Semiconductor. These ICs are engineered for efficient power management in portable equipment. The series typically offers various detection thresholds and package options to accommodate different design needs while maintaining low current consumption and high accuracy standards across industrial and commercial temperature ranges.

Supervisors Replacement Considerations

The BD5227G-1TR is documented as a recommended replacement with similar specifications. Note that the substitute uses an SSOP-5 package instead of VSOF-5, requiring layout adjustments. Verify electrical parameter alignment, particularly regarding output drive capability and reset timing characteristics before implementation.