BU46L292G-TL

Supervisors Overview

The BU46L292G-TL is a voltage detector IC from the ROHM BU45/BU46 series, designed for monitoring single-input power supplies. It features a fixed threshold voltage of 2.9 V with an accuracy of ±1%. The device utilizes a CMOS output type and includes a built-in reset delay timer of 200 ms, eliminating the need for external capacitors. It operates within a supply voltage range of 0.6 V to 6 V and consumes a typical operating current of 2.8 µA. The component is housed in an SSOP-3 package and supports surface mount installation.

Supervisors Feature Summary

• Integrated counter timer delay circuit removes the requirement for external delay-setting capacitors.
• CMOS output configuration provides direct interface compatibility with digital logic circuits.
• High detection accuracy ensures reliable voltage supervision across the operational range.

Supervisors Applications

• Portable electronic devices requiring low standby current consumption
• Battery-powered systems needing precise under-voltage detection
• Embedded controllers requiring stable reset signals during power transitions

Supervisors Procurement Notes

Verify the obsolete status and NRND designation before integration into new designs. Confirm availability through authorized distributors as standard stock may be limited. Ensure compliance with RoHS directives and check moisture sensitivity levels for proper handling and storage conditions during assembly processes.

Supervisors Selection Notes

Select this component when a fixed 2.9 V threshold with CMOS output is required. Consider the BU45L292G-TL if an open-drain output is preferred instead. Evaluate the 2.8 µA current consumption against system power budgets. Verify that the SSOP-3 package fits the available PCB footprint constraints.

Supervisors Part Context

This part belongs to the BU45/BU46 series of highly accurate, low-current voltage detectors. These ICs are engineered for applications where minimal power drain is critical. The series offers various threshold voltages and output types to suit different supervisory requirements while maintaining a compact form factor.

Supervisors Replacement Considerations

The BD5229G-1 is listed as a similar specification replacement with an open-drain output. The BU45L292G-TL serves as a functional alternative within the same series but differs in output structure.