BU4333FVE-TR

Overview

The BU4333FVE-TR is a voltage detector manufactured by ROHM Semiconductor, designed for monitoring supply voltages with an adjustable delay time feature. It operates within a reset active voltage range of 0.7 V to 7 V and features a typical under-voltage detection threshold of 3.3 V. The device offers high precision with a VDET accuracy of ±1%. It consumes minimal power, drawing only 0.40 μA in the ON state and 0.55 μA in the OFF state at VDET=4.8V. The component utilizes a VSOF5 package and supports CMOS output types with low-level reset activation.

Feature Summary

• Adjustable reset delay timer allows customization of response timing via external components.
• CMOS output type provides digital logic compatibility for system integration.
• Low current consumption ensures efficient power management during operation.

Applications

• Portable electronic devices requiring low-power supervision
• Battery-operated systems needing voltage monitoring
• General-purpose industrial control circuits

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or last-time-buy channels. Ensure design-in decisions account for potential supply constraints. Cross-reference datasheet specifications against application requirements to validate suitability.

Selection Notes

Select this part when adjustable delay functionality is required alongside low quiescent current. Compare performance metrics such as hysteresis voltage and output drive capability against alternative supervisory ICs. Consider package dimensions and thermal characteristics for PCB layout optimization.

Part Context

This component belongs to the BU42(43)xxFVE series of voltage detectors from ROHM Semiconductor. It shares pinout compatibility with related models like BD5233G-1, facilitating potential design transitions. The VSOF5 package offers a compact footprint suitable for space-constrained applications.

Replacement Considerations

BD5233G-1 is listed as a recommended replacement with the same pinout configuration. Verify electrical parameter alignment, particularly regarding reset voltage ranges and output drive strengths, before substituting.