BU4224F-TR

Overview

The BU4224F-TR is a voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It features an open-drain output and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection voltage is 2.4 V with a precision of ±1%. Circuit current is 0.40 μA (on) and 0.55 μA (off) at Vdet=4.8V. It is housed in an SOP-4 package, supports RoHS compliance, and has a supply status of 'last time buy'.

Feature Summary

• Adjustable reset delay timer functionality for customized timing control.
• Open-drain output type suitable for various logic interfaces.
• Low power consumption with microampere-level circuit currents.

Applications

• Portable equipment requiring low standby current.
• Battery-powered systems needing reliable voltage monitoring.
• General-purpose supervisory circuits in consumer electronics.

Procurement Notes

Verify the 'last time buy' status before ordering, as production may cease soon. Confirm the SOP-4 package and RoHS compliance match your assembly requirements. Ensure the 2.4 V detection threshold aligns with your system's voltage rails. Check for alternative components if long-term supply stability is critical for your product lifecycle.

Selection Notes

Select this component when an adjustable delay timer is required alongside a 2.4 V detection threshold. The open-drain output allows flexibility in interfacing with different logic families. Consider the SOP-4 package size for space-constrained designs. Verify that the operating temperature range meets your environmental specifications.

Part Context

This part belongs to the BU42xx series of voltage detectors from ROHM Semiconductor. It is designed for applications requiring precise voltage monitoring with customizable reset delays. The series offers various detection voltages and packages to suit different design needs.

Replacement Considerations

The BD5224G-1 is listed as a similar level replacement with the same pinout. Verify compatibility regarding package type and electrical parameters before substitution.

FAQ

What is the typical under-voltage detection voltage for the BU4224F-TR?

The typical under-voltage detection voltage is 2.4 V.

Does the BU4224F-TR include a manual reset function?

No, the BU4224F-TR does not have a manual reset feature.