BU4329FVE-TR

Overview

The BU4329FVE-TR is a voltage detector with adjustable delay time manufactured by ROHM Semiconductor. It features a CMOS output type and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection voltage is 2.9 V, with a precision of ±1%. The circuit current is 0.40 μA (ON) and 0.55 μA (OFF) at VDET=4.8V. Hysteresis voltage is VDET x 0.05. L output current is 3.3 mA (LowVol) and 6.5 mA (HighVol). The delay circuit resistance is 10.0 MΩ. Operating temperature ranges from -40°C to 125°C. Package size is 1.6x1.6 mm (t=0.6).

Feature Summary

• Adjustable delay timer functionality for customized reset timing.
• CMOS output structure providing low power consumption.
• Wide operating voltage range supporting various system requirements.

Applications

• Portable equipment requiring low power monitoring.
• Battery-powered devices needing voltage supervision.
• General purpose electronic circuits requiring reset signals.

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm supply status as the component may be subject to end-of-life notices or last-time buy conditions. Ensure RoHS compliance documentation matches project requirements. Cross-reference pinout compatibility if replacing existing designs.

Selection Notes

Select this component when an adjustable delay timer and CMOS output are required. Consider the 2.9 V detection threshold and ±1% precision for accurate monitoring. Evaluate the VSOF5 package dimensions for PCB layout constraints. Check the operating temperature range suitability for the intended environment.

Part Context

This part belongs to the BU43xx series of voltage detectors from ROHM Semiconductor. These components are designed for supervisory applications in portable and battery-operated systems. The series offers various detection voltages and output types to suit different design needs.

Replacement Considerations

BD5229G-1 is listed as a same pinout replacement option. Verify package differences (SSOP5 vs VSOF5) and output type changes (Open drain vs CMOS) during substitution.

FAQ

What is the typical under-voltage detection voltage?

The typical under-voltage detection voltage is 2.9 V.

Is manual reset available?

No, manual reset is not available for this component.