BD4850FVE-TR

Overview

The BD4850FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input supply voltages. It features an open-drain output and operates within a maximum supply voltage of 10 V. The device provides a threshold detection voltage of 5.0 V with a precision of ±1%. It includes a reset delay timer and maintains low power consumption with a circuit current of 0.60 μA at 4.8 V. The component is housed in a VSOF-5 package (1.6x1.6 mm) and supports an operating temperature range from -40°C to 105°C.

Feature Summary

• Provides precise under-voltage detection with high accuracy for system supervision
• Features an open-drain output compatible with various logic families
• Incorporates a reset delay timer to ensure stable system initialization
• Designed for low-power applications with minimal standby current consumption

Applications

• Monitoring power supply rails in embedded systems
• Supervising battery voltage levels in portable devices
• Ensuring proper reset sequences in microcontroller circuits
• Protecting memory and storage components from undervoltage conditions

Procurement Notes

Verify the exact part number suffix and manufacturing date code upon receipt, as this component is listed as End-of-Life or Last Time Buy status by the manufacturer. Confirm RoHS compliance documentation matches the specific batch received. Cross-reference the VSOF-5 package dimensions against your PCB footprint library to ensure mechanical compatibility before final assembly.

Selection Notes

Select this component when a fixed 5.0 V threshold is required for single-channel voltage monitoring. The open-drain output allows for flexible pull-up configuration to match different logic voltage levels. Consider the VSOF-5 package size constraints and the specified operating temperature range of -40°C to 105°C for environmental suitability. Evaluate the need for the internal reset delay timer versus external timing solutions.

Part Context

This part belongs to the BD48 series of standard voltage detectors from ROHM Semiconductor. It is functionally similar to other parts in the family but distinguished by its specific 5.0 V detection threshold and VSOF-5 packaging. The series is designed for general-purpose supervisory applications requiring compact footprints and reliable voltage monitoring capabilities.

Replacement Considerations

The BD5250G-1TR is documented as a recommended replacement with similar specifications. Note that the substitute uses an SSOP-5 package instead of VSOF-5, requiring PCB layout adjustments. Verify electrical parameter alignment, particularly the reset active voltage range and output current capabilities, before implementation.