BD46235G-TR

Overview

The BD46235G-TR is a single-channel voltage detector manufactured by Rohm Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range of 0.95V to 10V and features a fixed detection threshold of 2.3V with ±1% accuracy. The device provides a low-active reset output with a minimum delay time of 45ms and supports manual reset functionality. Packaged in a compact 5-SSOP (SC-74A) surface-mount format, it functions across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Provides precise under-voltage monitoring with a fixed 2.3V detection threshold and high accuracy.
• Features a CMOS push-pull output stage capable of driving external loads directly.
• Includes a manual reset input pin allowing for controlled system recovery independent of voltage levels.

Applications

• Microprocessor and microcontroller power supply supervision
• Battery-operated equipment voltage monitoring
• Portable electronic device power management

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS3 compliance and check for whisker-related environmental certifications if required by specific assembly standards. Ensure the 5-SSOP package dimensions match the target PCB footprint before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 2.3V threshold is required for systems operating up to 10V. Consider the manual reset feature for designs needing explicit user or software intervention for recovery. Evaluate the CMOS output drive capability against load requirements to ensure sufficient current sourcing and sinking without external buffering.

Part Context

This part belongs to the BD46 series of voltage detectors from Rohm Semiconductor. It serves as a legacy component in power management portfolios, often replaced by newer generations like the BD52xx series which may offer adjustable delays or different output configurations while maintaining similar package footprints.

Replacement Considerations

The BD5223G-1TR is a recommended replacement offering the same SSOP5 package and 2.3V threshold. Note that the substitute features an open-drain output and adjustable delay, requiring schematic adjustments compared to the original's push-pull CMOS output and fixed timing.