BD4850G-TR

Overview

The BD4850G-TR is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an N-channel open-drain output and operates within a supply voltage range of 0.95 V to 10 V. The device provides a fixed detection threshold of 5.0 V with a precision of ±1%. It includes a reset delay timer of 20 ms and maintains a low static current consumption of 0.85 µA at Vs=4.8 V. The component is housed in an SSOP-5 package and supports manual reset functionality.

Feature Summary

• Standard CMOS voltage detection architecture with N-channel open-drain output
• High accuracy threshold detection with ±1% precision
• Low power consumption suitable for battery-operated applications
• Integrated reset delay timer for stable system initialization

Applications

• Processor supervisor circuits requiring precise voltage monitoring
• Battery-powered devices needing low quiescent current supervision
• Embedded systems utilizing manual reset control mechanisms
• General-purpose voltage monitoring in industrial environments

Procurement Notes

Verify the specific suffix and package variant against the official datasheet, as ordering codes may include tape-and-reel specifications. Confirm the active status and availability through authorized distributors, noting that some variants may be designated as last-time buy or obsolete. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 5.0 V detection threshold is required with high accuracy. Consider the SSOP-5 package size constraints and the need for manual reset capability. Evaluate the 20 ms reset delay against system startup timing requirements. Compare static current specifications against other family members if ultra-low power operation is critical for the application design.

Part Context

This part belongs to the BD48 series of standard CMOS voltage detectors from ROHM Semiconductor. The series offers various detection voltages ranging from 2.3 V to 6.0 V in 0.1 V increments. These devices are designed for general-purpose supervisory applications, providing reliable voltage monitoring with minimal external components and consistent performance across industrial temperature ranges.

Replacement Considerations

The BD5250G-1 is listed as a recommended replacement with the same SSOP-5 package. Verify functional differences such as adjustable delay timers and slightly different current consumption characteristics before substitution.