BD4730G-TR

Overview

The BD4730G-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for power supply support applications. It features an open collector output type and operates within a reset active voltage range of 0.85 to 10 V. The device provides a typical under-voltage detection voltage of 3.0 V with a precision of ±1%. It consumes 1.5 μA in the ON state and 1.6 μA in the OFF state at Vs=4.8V. The component includes hysteresis voltage of 0.05 V and supports an L output current of 15 mA. It functions without manual reset or watchdog timer capabilities and is housed in an SSOP5 package.

Feature Summary

• Provides precise under-voltage detection with open collector output for reliable system supervision
• Operates across a wide reset active voltage range to accommodate various power supply levels
• Maintains low circuit current consumption to support energy-efficient designs

Applications

• Power supply monitoring circuits
• System reset generation
• Voltage supervision in electronic devices

Procurement Notes

Verify the specific ordering part number BD4730G-TR against official ROHM documentation to ensure compatibility with your design requirements. Confirm that the SSOP5 package dimensions and pinout match your PCB layout specifications. Check the latest supply status as this component may be subject to availability changes or end-of-life notices from the manufacturer.

Selection Notes

Select the BD4730G-TR when a fixed 3.0 V threshold with high accuracy is required for supervisory applications. Consider its open collector output configuration for interfacing with various logic families. Evaluate the low standby current consumption if battery life or power efficiency is a critical design constraint for the target application.

Part Context

This component belongs to the BD47 series of standard voltage detectors from ROHM Semiconductor. These devices are engineered for general-purpose power management tasks, offering stable performance in monitoring supply voltages. The series typically emphasizes reliability and precision in detecting voltage deviations to protect connected electronics.

Replacement Considerations

BD5230G-1TR is listed as a recommended replacement with the same package and similar electrical characteristics.