BU4827F-TR

Supervisors Overview

The BU4827F-TR is a CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 2.7 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and supports a wide operating temperature range from -40°C to +125°C. It utilizes an open-drain output type without manual reset or watchdog timer functions. The component is housed in a compact SOP-4 package, suitable for surface-mount technology.

Supervisors Feature Summary

• CMOS voltage detection with high precision threshold monitoring
• Wide operating temperature range for industrial environments
• Low power consumption design for battery-operated systems

Supervisors Applications

• Portable electronic devices requiring voltage supervision
• Industrial control systems needing reliable reset signals
• Battery-powered equipment with low voltage cutoff requirements

Supervisors Procurement Notes

Verify the current lifecycle status as the component may be marked as Not Recommended for New Designs (NRND) or discontinued. Confirm availability through authorized distributors and check for last-time buy options if applicable. Ensure compatibility with existing PCB footprints and validate replacement alternatives such as the BD5227G-1TR if sourcing new units is not feasible.

Supervisors Selection Notes

Select this component when a fixed 2.7 V threshold is required for system reset or monitoring. Consider the SOP-4 package size constraints and the open-drain output capability for interfacing with microcontrollers. Evaluate the operating temperature range against environmental conditions and verify that the static current consumption meets power budget requirements for the specific application.

Supervisors Part Context

This part belongs to the BU48xx series of voltage detectors from ROHM Semiconductor, which are designed for low-power, high-precision monitoring tasks. The series typically offers various threshold voltages and packaging options to suit different design needs. The BU4827F-TR specifically targets applications requiring a 2.7 V detection level in a small form factor.

Supervisors Replacement Considerations

The BD5227G-1TR is listed as a similar specification replacement with comparable threshold and output characteristics, though it uses an SSOP-5 package.