BD4725G-TR

Overview

The BD4725G-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for power supply support applications. It operates within a reset active voltage range of 0.85 to 10 V and features an open collector output type with a low reset active state. The device provides a typical under-voltage detection voltage of 2.5 V with a precision of ±1%. It consumes a circuit current of 1.5 μA in the ON state and 1.6 μA in the OFF state, offering a hysteresis voltage of 0.05 V. The component supports an L output current of 15 mA at low voltage levels and functions reliably across a temperature range from -40°C to 75°C.

Feature Summary

• Provides precise under-voltage detection with high accuracy for reliable system monitoring
• Features an open collector output suitable for interfacing with various logic families
• Maintains low static current consumption to optimize power efficiency in standby modes

Applications

• Power supply monitoring circuits
• Microprocessor reset systems
• Battery voltage supervision
• Electronic equipment protection

Procurement Notes

Verify the specific ordering suffix and package configuration against official ROHM documentation before procurement. Confirm that the SSOP5 package dimensions align with your PCB footprint requirements. Ensure compliance with RoHS standards if required by your manufacturing process. Check the current supply status as availability may vary. Validate the operating temperature range suitability for your intended application environment.

Selection Notes

Select this component when a fixed 2.5 V threshold with open collector output is required. Consider the ±1% precision for critical voltage monitoring tasks. Evaluate the 15 mA sink capability for direct driving needs. Compare the 1.6 μA quiescent current against lower-power alternatives if battery life is paramount. Ensure the 0.85 V minimum reset voltage accommodates your system's brown-out conditions.

Part Context

This part belongs to the BD47 series of standard voltage detectors from ROHM Semiconductor. It is specifically engineered for supervisory applications requiring accurate voltage tracking. The device complements other models in the family by offering a specific 2.5 V detection point. It serves as a fundamental building block for ensuring stable operation in digital and analog circuits.

Replacement Considerations

The BD5225G-1 is documented as a recommended replacement with the same SSOP5 package. Verify compatibility regarding the open drain versus open collector output difference. Check if the adjustable delay timer feature in the substitute meets your timing requirements.