BD46481G-TR

Overview

The BD46481G-TR is a supervisory circuit manufactured by ROHM Semiconductor, designed for monitoring voltage levels in electronic systems. It operates within a supply voltage range up to 10 V and features a fixed threshold voltage of 4.8 V with an overvoltage threshold of 4.848 V. The device provides a CMOS output type and includes a manual reset function. It incorporates a fixed reset delay time of 100 ms and maintains an accuracy of 1 %. Packaged in an SSOP-5 format, it supports surface mount installation and functions across a temperature range from -40 C to +105 C.

Feature Summary

• Provides precise voltage supervision with a fixed detection threshold and high accuracy.
• Features a manual reset capability allowing external control over the reset state.
• Delivers a stable CMOS output signal with a defined delay timer for system synchronization.

Applications

• Monitoring power supply voltages in embedded microcontroller systems
• Ensuring system stability during power-up and power-down sequences
• Providing reset signals for digital logic circuits requiring manual intervention

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against SSOP-5 specifications. Review datasheet for thermal dissipation limits and operating temperature constraints. Ensure compatibility with existing board layout and signal requirements before integration.

Selection Notes

Choose this component when a fixed 4.8 V threshold and CMOS output are required. Consider the manual reset feature if external control is necessary. Verify that the 100 ms delay meets system timing requirements. Check availability as the part is marked for last-time buy or obsolete status.

Part Context

This voltage detector belongs to the BD46 series of supervisory circuits. It shares the SSOP-5 package and general operational characteristics with other members of the family. The specific model distinguishes itself through its 4.8 V threshold and CMOS output configuration.

Replacement Considerations

BD5248G-1 is listed as a recommended replacement with similar specifications. Note differences in output type (open drain vs CMOS) and delay adjustability. Verify electrical compatibility before substitution.