BU4230G-TR

Overview

The BU4230G-TR is a CMOS voltage detector IC from ROHM Semiconductor, housed in an SSOP-5 package. It operates within a supply voltage range of 1.8 V to 7 V with a typical operating current of 550 nA. The device features a fixed threshold voltage of 3 V and provides an open-drain output capable of sourcing up to 6 mA. It includes an adjustable output delay circuit and functions across a temperature range of -40°C to +125°C.

Feature Summary

• CMOS construction for low power consumption
• Adjustable output delay time setting
• Open-drain output configuration

Applications

• Battery-powered equipment monitoring
• Microprocessor reset circuits
• Portable electronic devices

Procurement Notes

Verify the specific suffix and packaging type against the manufacturer's latest documentation to ensure compatibility with your assembly process. Confirm that the component status is active for new designs, as some variants may be marked as not recommended for new use. Cross-reference the exact part number with official datasheets to validate electrical characteristics and pinout configurations before finalizing procurement.

Selection Notes

Select this component when a low quiescent current and adjustable delay are required for voltage supervision. The 3 V threshold makes it suitable for systems requiring precise monitoring at standard logic levels. Ensure the application environment stays within the specified temperature range and that the open-drain output can interface correctly with the downstream logic inputs.

Part Context

This part belongs to the BU42xx series of low-voltage detectors from ROHM. These ICs are designed for applications requiring high accuracy and minimal power drain. The series typically offers various threshold voltages and delay options to accommodate different system requirements while maintaining a compact footprint.

Replacement Considerations

Check for direct substitutes within the BU42xx series or other ROHM voltage detectors with compatible thresholds and packages. Verify that any replacement maintains the same output type and delay adjustability. Consult official substitution guides to ensure functional equivalence without redesigning the surrounding circuitry.