BD4841FVE-TR

Overview

The BD4841FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply lines. It operates within a maximum supply voltage of 10 V and features an open-drain output type with a low active reset state. The device provides a typical under-voltage detection threshold of 4.1 V with a precision of ±1%. It includes a fixed reset delay timer and lacks manual reset or watchdog timer functionalities. The component supports a reset active voltage range from 0.95 V to 10 V and maintains hysteresis at VDET multiplied by 0.05. It functions reliably across an extended temperature range of -40°C to +105°C.

Feature Summary

• Provides precise under-voltage detection with high accuracy for system supervision
• Features open-drain output compatible with various logic levels
• Includes built-in reset delay timer to ensure stable power-up sequences
• Operates efficiently with low circuit current consumption

Applications

• Monitoring battery-powered devices for low-voltage conditions
• Supervising microprocessor and microcontroller power supplies
• Ensuring system stability in industrial control equipment
• Protecting data integrity in portable electronic devices

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing replacements, as availability may vary by region. Confirm RoHS compliance status through official manufacturer documentation before integration. Check for end-of-life notices or last-time-buy recommendations to ensure long-term supply chain stability. Validate electrical parameters against the latest datasheet to match design requirements precisely.

Selection Notes

Select this component when a fixed 4.1 V threshold is required for single-channel voltage monitoring. Consider the VSOF-5 package for compact surface-mount designs. Ensure the application does not require manual reset or watchdog timer features, as these are absent. Verify that the open-drain output configuration aligns with the downstream circuit's input requirements and pull-up resistor needs.

Part Context

This part belongs to the BD48 series of standard voltage detectors from ROHM Semiconductor. It is designed for general-purpose power management applications requiring reliable voltage supervision. The series offers various threshold voltages to accommodate different system requirements while maintaining consistent performance characteristics and packaging options.

Replacement Considerations

BD5241G-1 is listed as a recommended replacement with similar specifications. Note that the replacement uses an SSOP5 package instead of VSOF5, requiring layout adjustments.