BU4927F-TR

Supervisors Overview

The BU4927F-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages. It operates within a supply voltage range of 0.7 V to 10 V and features a fixed threshold detection voltage of 2.7 V with an accuracy of ±1%. The device utilizes a CMOS output type and lacks manual reset or watchdog timer functions. It is housed in a VSOF-5 package and supports surface mount installation. The component ensures reliable operation across an extended temperature range from -40°C to +105°C, with a maximum power dissipation of 210 mW.

Supervisors Feature Summary

• Provides precise voltage supervision with a fixed 2.7 V detection threshold.
• Features CMOS output suitable for direct logic interface connections.
• Operates reliably across industrial temperature ranges up to 105°C.

Supervisors Applications

• Microprocessor power supply monitoring
• Portable battery-powered equipment
• Test and measurement instruments

Supervisors Procurement Notes

Verify the specific suffix 'F' against official datasheets to confirm the VSOF-5 package and 10 V maximum rating, as generic listings may vary. Confirm RoHS compliance status directly with the manufacturer documentation before integration. Check for obsolescence notices, as this series may be subject to discontinuation or replacement by newer models like the BD52xx series.

Supervisors Selection Notes

Select this component when a fixed 2.7 V threshold is required without adjustable settings. Ensure the application does not need manual reset or watchdog capabilities, as these are absent. Verify that the VSOF-5 package fits the PCB layout constraints. Consider the 10 V maximum input limit for systems with higher supply voltages.

Supervisors Part Context

This part belongs to the standard voltage detector family from ROHM, focusing on simple reset and power-on reset functions. It is categorized under PMIC - Power Management ICs. The BU4927F variant specifically denotes the VSOF-5 package configuration, distinguishing it from SSOP versions like the BU4927G.

Supervisors Replacement Considerations

BD5227G-1TR