BD46255G-TR

Overview

The BD46255G-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring supply voltages in electronic circuits. It features a fixed reset delay time of 50 ms and supports manual reset functionality. The device operates within a detection voltage range of 0.95 V to 10 V with a typical under-voltage detection threshold of 2.5 V. It offers high precision with a ±1% detection accuracy and utilizes a CMOS output type. The component is housed in an SSOP-5 package and is rated for operation between -40°C and +105°C.

Feature Summary

• Provides precise voltage monitoring with ±1% detection accuracy
• Features a fixed 50 ms reset delay timer for stable operation
• Supports manual reset input for system control flexibility
• Utilizes low-power CMOS output structure

Applications

• Microcontroller system supervision
• CPU power supply monitoring
• DSP circuit reset generation
• General-purpose voltage level detection

Procurement Notes

Verify the obsolete status and last-time-buy availability through official ROHM channels or authorized distributors before finalizing procurement plans. Confirm that the SSOP-5 package and specific suffix match design requirements. Ensure compliance with RoHS directives as indicated in official documentation. Cross-reference datasheet revisions to guarantee parameter consistency for long-term production stability.

Selection Notes

Select this component when a fixed delay reset is required without adjustable timing options. The CMOS output is suitable for direct interfacing with digital logic inputs. Consider the 2.5 V threshold if it aligns with the target supply rail. Verify that the manual reset feature meets system safety protocols. Compare against the BD5225G-1 series for potential pin-compatible alternatives if available.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. The series is characterized by high accuracy and low current consumption, targeting applications requiring reliable reset signals for microcontrollers and CPUs. The BD46255G-TR specifically denotes the tape-and-reel packaging variant of the BD46255G device.

Replacement Considerations

The BD5225G-1TR is listed as a similar level replacement with the same SSOP-5 package. Verify electrical compatibility, particularly regarding the adjustable delay feature of the alternative versus the fixed delay of the original part.