BU4246FVE-TR

Overview

The BU4246FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable reset delay timer and operates within a supply voltage range of 0.7 V to 7 V. The device provides an open-drain output with a low active state and includes a manual reset function absence. It exhibits a typical under-voltage detection threshold of 4.6 V with ±1% precision and maintains a hysteresis voltage of VDET x 0.05. The component supports operation across a temperature range of -40°C to 125°C and is housed in a VSOF5 package.

Feature Summary

• Integrates an adjustable reset delay timer for customized timing control
• Provides open-drain output configuration with low active state logic
• Features high-precision voltage detection with ±1% accuracy tolerance

Applications

• Microprocessor system supervision
• Portable equipment power management
• Battery-operated device monitoring

Procurement Notes

Verify the specific ordering suffix and package variant against current manufacturer documentation, as availability status may vary. Confirm that the VSOF5 package dimensions and pinout align with existing PCB footprints. Ensure compliance with RoHS directives if required by the target application environment. Cross-reference the datasheet revision date to confirm parameter consistency before finalizing procurement specifications.

Selection Notes

Select this component when a precise 4.6 V detection threshold with adjustable delay timing is required. The open-drain output suits interfaces requiring external pull-up resistors or level shifting. Consider the wide operating temperature range for industrial or automotive-grade environments where standard commercial parts may fail. Verify that the 7 V maximum supply voltage accommodates the highest expected input rail without exceeding limits.

Part Context

This part belongs to the BU42xxFVE series of simple voltage detectors from ROHM Semiconductor. These devices are engineered for low-power applications requiring reliable supervision of digital logic circuits. The series emphasizes compact packaging and high accuracy to support miniaturized electronic designs in consumer and industrial sectors.

Replacement Considerations

BD5246G-1 is listed as a recommended replacement with similar specifications and same pinout compatibility.