BD52E42G-TR

Overview

The BD52E42G-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages. It features an adjustable reset delay timer and operates within a detection voltage range of 0.95V to 10V. The typical under-voltage detection threshold is 4.2V with a precision of ±1%. It utilizes an open-drain output active low and consumes 0.85μA in both ON and OFF states at VDET=4.8V. The device supports a hysteresis voltage of VDET x 0.05 and offers L-level output currents of 0.4mA and 2mA. It is housed in an SSOP5 package and functions across a temperature range of -40°C to 105°C.

Feature Summary

• Adjustable reset delay timer functionality
• Open-drain output configuration
• Low circuit current consumption
• Wide operating voltage range

Applications

• Power supply monitoring systems
• Microprocessor reset circuits
• Battery voltage supervision
• Embedded system protection

Procurement Notes

Verify the Not Recommended for New Designs (NRND) status before procurement. Confirm that existing inventory meets project requirements as future production may be limited. Ensure compatibility with the SSOP5 package and electrical specifications during integration planning.

Selection Notes

Select this component for applications requiring a fixed 4.2V detection threshold with adjustable delay timing. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the low current consumption against power budget constraints. Verify thermal performance within the specified -40°C to 105°C operating range.

Part Context

This part belongs to the BD52 series of voltage detectors from ROHM Semiconductor. It shares functional similarities with other models in the family but is distinguished by its specific 4.2V detection threshold and adjustable delay features. The series is known for low power consumption and compact packaging solutions suitable for portable electronics.

Replacement Considerations

BD5242G-1TR is a recommended replacement with the same pinout and package.