BU4924G-TR

Supervisors Overview

The BU4924G-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It operates within a supply voltage range of 0.7 V to 7 V and features a typical under-voltage detection threshold of 2.4 V with a precision of ±1%. The device utilizes a CMOS output type and provides a low-active reset signal without manual reset or watchdog timer functions. It is housed in an SSOP-5 package and supports an operating temperature range from -40°C to 125°C.

Supervisors Feature Summary

• CMOS output structure for reliable logic interfacing
• High accuracy voltage detection with ±1% precision
• Wide operating supply voltage range up to 7 V
• Extended industrial temperature rating

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific revision level and RoHS compliance status before procurement, as the component is marked as Not Recommended for New Designs (NRND). Confirm that the SSOP-5 package dimensions match the target PCB footprint. Ensure the 2.4 V threshold aligns with system requirements, noting that alternative BD5224G-1 offers similar specifications with open-drain outputs if compatibility allows.

Supervisors Selection Notes

Select this component when a fixed 2.4 V threshold with high precision is required for simple reset applications. The CMOS push-pull output is suitable for direct driving of digital inputs. Consider the NRND status for long-term production viability; alternatives like the BD5224G-1 provide comparable performance with different output structures. Verify thermal dissipation limits within the SSOP-5 package for the intended application environment.

Supervisors Part Context

The BU4924G-TR belongs to ROHM's standard voltage detector family, specifically engineered for microprocessor supervision. It serves as a legacy solution for systems requiring precise under-voltage detection without complex timing features. The part is often compared with newer generations like the BD52xx series, which offer enhanced efficiency or different output configurations while maintaining similar form factors.

Supervisors Replacement Considerations

The BD5224G-1 is a recommended replacement with identical 2.4 V threshold and SSOP-5 package, though it features an open-drain output instead of CMOS.