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BD4931G-TR

BD4931G-TR Description

The BD4931G-TR from ROHM Semiconductor is a high-performance single-channel voltage detector designed for precision monitoring in low-power electronic systems. Part of the BD49xxx series, this surface-mount IC operates with a fixed 3.1V threshold voltage, ensuring reliable detection of undervoltage conditions. Packaged in a 5-pin SSOP and delivered in Tape & Reel (TR), it is optimized for automated assembly processes. The device features an active-low reset output, making it ideal for microcontroller (MCU) and DSP-based systems requiring stable power-on/power-down sequencing. Compliant with ROHS3 and REACH standards, it is suitable for environmentally conscious designs.

BD4931G-TR Features

• Voltage Threshold: Fixed at 3.1V for precise monitoring.
• Reset Configuration: Active-low reset ensures compatibility with common MCU reset logic.
• Compact Package: 5-SSOP footprint saves board space in dense layouts.
• Robust Compliance: ROHS3 and REACH Unaffected, meeting global environmental standards.
• Reliability: Moisture Sensitivity Level (MSL) 1 allows unlimited floor life, simplifying storage and handling.
• Wide Application Range: Operates seamlessly in industrial, automotive, and consumer electronics due to its robust design.

BD4931G-TR Applications

• Power Management: Ensures safe operation of MCUs and FPGAs by monitoring supply voltages.
• Automotive Systems: Protects ECUs (Engine Control Units) and infotainment systems from undervoltage faults.
• Industrial Control: Used in PLCs (Programmable Logic Controllers) and sensors to prevent erratic behavior during power fluctuations.
• Consumer Electronics: Ideal for smart home devices, wearables, and IoT nodes requiring reliable voltage supervision.
• Battery-Powered Devices: Extends battery life by triggering low-power modes when voltage drops below the threshold.

Conclusion of BD4931G-TR

The BD4931G-TR stands out as a cost-effective, reliable voltage detector for critical power monitoring applications. Its 3.1V threshold, active-low reset, and compact SSOP package make it a versatile choice for designers prioritizing space efficiency and compliance. Whether in automotive, industrial, or consumer electronics, this IC ensures system stability under varying power conditions, reducing the risk of data corruption or hardware damage. Its ease of integration and environmental certifications further solidify its position as a preferred solution for modern electronic designs.