BU4217G-TR

Overview

The BU4217G-TR is a CMOS voltage detector IC from the BU42xx series, manufactured by ROHM Semiconductor. It features an adjustable output delay timer and operates within a supply voltage range of 0.7V to 7V. The typical under-voltage detection threshold is 1.7V with a precision of ±1%. The device provides an open-drain reset output that activates at a low state. Key electrical characteristics include a circuit current of 0.40μA (on) and 0.55μA (off) at Vdet=4.8V. It is housed in a 5-pin SSOP package and supports an operating temperature range of -40°C to +125°C.

Feature Summary

• Built-in adjustable delay circuit for customizable reset timing
• High-accuracy voltage detection with ±1% precision
• Low current consumption suitable for battery-powered applications
• Open-drain output interface for flexible system integration

Applications

• Portable electronic devices requiring low power supervision
• Battery-operated equipment needing reliable voltage monitoring
• Embedded systems utilizing CMOS technology for reset generation

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and RoHS compliance upon receipt. Check datasheet revisions for any parameter updates. Ensure storage conditions meet moisture sensitivity level requirements. Validate pinout compatibility if replacing existing designs.

Selection Notes

Select this component for applications requiring precise voltage monitoring with adjustable reset delays. Consider the open-drain output configuration for interfacing with various logic levels. Evaluate the low standby current for energy-efficient designs. Verify thermal performance within the specified operating temperature range.

Part Context

The BU4217G-TR belongs to the BU42xx series of CMOS voltage detectors. This series is designed for high accuracy and low power consumption. The specific part number indicates the tape and reel packaging format. It serves as a supervisory circuit for maintaining system stability during power fluctuations.

Replacement Considerations

BD5217G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence before substitution. Check updated specifications in the BD5217G-1 datasheet.