BU46K462G-TL

Supervisors Overview

The BU46K462G-TL is a fixed-delay voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a CMOS output type and monitors a single input with a threshold voltage of 4.6 V. The device operates within a supply voltage range up to 6 V and maintains an accuracy of 1%. It includes a fixed reset delay time of 200 ms and does not support manual reset or watchdog timer functions. The quiescent current is 2.8 uA, and it is housed in an SOT-23-3 package suitable for surface mount installation.

Supervisors Feature Summary

• CMOS output interface for digital logic compatibility
• Fixed 200 ms reset delay timer for stable power-up sequencing
• High detection accuracy of 1% for precise voltage monitoring

Supervisors Applications

• Power supply supervision in portable electronic devices
• Microcontroller system reset generation
• Battery-operated equipment voltage monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized distributors as the part is marked obsolete. Confirm package integrity and pin alignment against the SOT-23-3 specification. Check RoHS compliance documentation for environmental standards. Ensure storage conditions meet humidity sensitivity requirements before assembly. Validate replacement options if new design integration is required.

Supervisors Selection Notes

Select this component when a fixed 4.6 V threshold with CMOS output is required. Consider the 200 ms delay for systems needing extended power-up stability. Evaluate the low quiescent current for battery efficiency. Verify operating temperature range suitability for the target environment. Compare against similar models if adjustable delay or open-drain outputs are preferred.

Supervisors Part Context

This voltage detector belongs to the BU45/BU46 series from ROHM Semiconductor. It is part of a family of supervisory circuits designed for reliable power management. The series offers various threshold voltages and output configurations to suit different application needs. The BU46K462G-TL specifically provides a fixed delay and CMOS output for standard digital interfaces.

Supervisors Replacement Considerations

BD5246G-1 is listed as a similar specification replacement with comparable threshold voltage.