BU46K472G-TL

Supervisors Overview

The BU46K472G-TL is a voltage detector IC from the ROHM BU45/BU46 series, designed for monitoring power supply voltages. It features a fixed threshold voltage of 4.7 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.6 V to 6 V and consumes a typical operating current of 2.8 µA. It provides a CMOS output type with a fixed reset delay time of 200 ms. The component is housed in an SSOP-3 package and supports an operating temperature range from -40°C to +105°C.

Supervisors Feature Summary

• Built-in counter timer delay circuit eliminates the need for external capacitors for delay time setting.
• Highly accurate voltage detection with ±1% precision across the operating temperature range.
• Low current consumption design suitable for battery-powered applications.
• CMOS output structure allows direct interfacing with digital logic circuits.

Supervisors Applications

• Microprocessor system reset circuits
• Battery voltage monitoring
• Portable electronic devices
• Embedded system power supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or official ROHM channels due to end-of-life status. Confirm package integrity and moisture sensitivity level handling requirements upon receipt. Cross-reference datasheet revisions to ensure compatibility with existing design specifications before integration into new production runs.

Supervisors Selection Notes

Select this component when a 4.7 V threshold with CMOS output and 200 ms delay is required. Consider the BU46L472G-TL if open-drain output is preferred instead of CMOS. Evaluate the BD5230G-1TR as a potential replacement for similar functionality with different package options. Ensure the SSOP-3 footprint matches the PCB layout constraints.

Supervisors Part Context

This part belongs to the BU45/BU46 series of voltage detectors known for low power consumption and high accuracy. The BU46 variant specifically utilizes a CMOS output structure. The suffix 'TL' indicates tape and reel packaging. This series is widely used in consumer electronics and industrial control systems requiring reliable power supervision.

Supervisors Replacement Considerations

The BD5230G-1TR is listed as a similar specification replacement with comparable threshold and delay characteristics but differs in package type (SSOP-5 vs SSOP-3) and output structure.