BD4847G-TR

Overview

The BD4847G-TR is a standard CMOS voltage detector IC manufactured by Rohm Semiconductor. It features a fixed detection threshold of 4.7V with a precision of ±1%. The device provides a low-active reset output via an open-drain configuration, suitable for monitoring single-channel power supplies up to 10V. It operates within a supply voltage range of 0.95V to 10V and includes hysteresis defined as Vs x 0.05. Packaged in a compact 5-SSOP (SC-74A) surface-mount format, it supports an extended industrial temperature range from -40°C to 105°C.

Feature Summary

• Fixed 4.7V detection threshold with high accuracy
• Low-active open-drain reset output
• Compact 5-pin SSOP surface-mount package

Applications

• Power supply supervision in electronic systems
• Microprocessor reset circuit generation
• Battery voltage monitoring applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the part's discontinued status. Confirm that the received inventory matches the specific BD4847G-TR designation and packaging type. Ensure compliance with RoHS3 standards and check for any relevant export control classifications prior to final acquisition.

Selection Notes

Select this component for designs requiring a precise 4.7V under-voltage detection point with minimal external components. The open-drain output allows flexible interfacing with various logic levels. Consider the discontinued status when planning long-term production runs, as availability may be limited compared to active series members.

Part Context

This voltage detector belongs to the BD48xxx series of standard CMOS supervisory circuits. It is designed for reliable operation in consumer and industrial electronics where stable power management is critical. The device integrates essential monitoring functions into a small footprint, supporting efficient board space utilization in modern portable and embedded devices.

Replacement Considerations

The BD5247G-TR is documented as a parameter-equivalent replacement with the same SSOP5 package. Verify compatibility regarding reset delay timers and current consumption differences before substitution.