BD4846G-TR

Overview

The BD4846G-TR is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an open-drain output and monitors a single input channel with a typical threshold voltage of 4.6 V. The device operates within a supply voltage range of 0.9 V to 10 V, ensuring reliable detection across various power conditions. It offers high accuracy with a precision of ±1% and includes hysteresis defined as Vs x 0.05. The IC supports a reset delay timer and functions in temperatures from -40°C to +105°C, packaged in an SSOP-5 format.

Feature Summary

• CMOS voltage detection with open-drain output for flexible interfacing
• High precision monitoring with ±1% accuracy and adjustable hysteresis
• Integrated reset delay timer to prevent false triggering during power transitions

Applications

• Power supply supervision in embedded systems
• Microcontroller reset circuitry
• Battery-operated device voltage monitoring

Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with existing designs. Confirm that the component meets all required environmental and electrical specifications for the target application before integration.

Selection Notes

Select this component when a fixed threshold voltage detector with integrated reset delay is required. Ensure the operating voltage range and temperature limits align with the system requirements. Consider the open-drain output configuration for level shifting needs.

Part Context

This part belongs to the BD48 series of standard CMOS voltage detectors. It is designed for general-purpose power management applications where precise voltage monitoring and controlled reset timing are essential for system stability.

Replacement Considerations

BD5246G-1TR is a recommended replacement with the same SSOP-5 package and similar detection voltage, though it features adjustable delay and different current characteristics.