BU4241G-TR

Overview

The BU4241G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features an adjustable reset delay timer and operates within a reset active voltage range of 0.7 V to 7 V. The typical under-voltage detection threshold is 4.1 V with a precision of ±1%. The device utilizes an open-drain output type and maintains low current consumption, drawing 0.40 μA in the on state and 0.55 μA in the off state at Vdet=4.8V. It is housed in an SSOP-5 package and supports RoHS compliance.

Feature Summary

• Integrates an adjustable delay timer for customizable reset timing sequences.
• Provides high-precision voltage detection with a typical threshold accuracy of ±1%.
• Features an open-drain output compatible with various logic families.
• Operates with ultra-low current consumption suitable for battery-powered applications.

Applications

• Portable electronic devices requiring precise power management
• Battery-operated equipment needing reliable voltage supervision
• Embedded systems utilizing CMOS logic interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required tape-and-reel packaging configuration. Ensure the revision level aligns with existing design documentation to prevent integration issues. Check for any end-of-life notices or recommended replacement alternatives if sourcing for new production runs.

Selection Notes

Select this component when an adjustable reset delay is required alongside standard voltage monitoring functions. The open-drain output allows for flexible interfacing with different logic levels. Consider the operating temperature range and package size constraints during PCB layout. Verify that the 4.1 V detection threshold meets the system's power rail requirements.

Part Context

This part belongs to the BU42xx series of voltage detectors from ROHM Semiconductor. It is specifically engineered for low-voltage monitoring applications where precise threshold detection and configurable reset delays are critical. The series emphasizes low power consumption and compact packaging solutions for modern portable electronics.

Replacement Considerations

The BD5241G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence regarding the adjustable delay feature and electrical parameters before substitution.