BD46245G-TR

Overview

The BD46245G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor, designed for monitoring single-input power supply rails. It features a fixed threshold voltage of 2.4 V with an accuracy of ±1%. The device provides a CMOS output type and includes a manual reset function without a watchdog timer or battery backup switch. It operates within a maximum supply voltage of 10 V and supports a reset delay time of 50 ms. The component is housed in an SSOP-5 package suitable for surface mount installation.

Feature Summary

• CMOS output interface for digital logic compatibility
• Manual reset capability for system control
• Fixed delay timer for stable power-up sequencing

Applications

• Embedded system power supervision
• Microcontroller reset circuitry
• Portable electronic device power management

Procurement Notes

Verify the current lifecycle status as the product may be classified as Last Time Buy or discontinued. Confirm RoHS compliance details through official documentation before procurement. Ensure the SSOP-5 package dimensions match the target PCB footprint requirements. Check for any specific handling precautions related to the surface-mount technology used in this component series.

Selection Notes

Select this component when a fixed 2.4 V detection threshold is required for system supervision. The CMOS output is suitable for standard digital logic interfaces. Consider the manual reset feature if external user intervention is needed for system recovery. Verify that the 50 ms fixed delay meets the timing requirements for connected peripherals during power-up sequences.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. The series focuses on low-power supervisory circuits with various threshold options. The BD46245G-TR specifically addresses applications requiring precise under-voltage detection with a fixed response time. It complements other variants in the family that offer different voltage thresholds and delay characteristics.

Replacement Considerations

BD5224G-1TR is a recommended replacement offering the same SSOP-5 package and similar detection voltage. Note differences in output type (Open drain vs CMOS) and adjustable delay capabilities.