BU4330FVE-TR

Overview

The BU4330FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input supply voltages. It features an adjustable reset delay timer and operates within a wide power supply range of 0.9 V to 7 V. The device provides a typical under-voltage detection threshold of 3.0 V with high accuracy of ±1%. It delivers a low quiescent current of 550 nA and supports output currents up to 6.5 mA in the high state. The component is housed in a compact VSOF-5 package, measuring 1.6x1.6 mm with a thickness of 0.6 mm, suitable for surface-mount applications across industrial temperature ranges from -40°C to +125°C.

Feature Summary

• CMOS output type ensures compatibility with standard digital logic interfaces without requiring external pull-up resistors.
• Adjustable reset delay time allows customization of response timing via an external resistor connected to the delay pin.
• High precision voltage detection with ±1% accuracy ensures reliable system supervision under varying load conditions.

Applications

• Microprocessor and microcontroller system reset circuits
• Battery-powered portable devices requiring low standby current
• Industrial control systems operating in extreme temperature environments

Procurement Notes

Verify the specific suffix FVE against official ROHM documentation to confirm the VSOF-5 package and adjustable delay functionality. Ensure the ordering part number matches the required tape-and-reel quantity of 3000 units. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a CMOS output is preferred over open-drain types for direct logic interfacing. The adjustable delay feature makes it suitable for applications requiring controlled startup sequences. Consider the 550 nA quiescent current for battery-sensitive designs. Verify that the 3.0 V detection threshold aligns with the target system's minimum operating voltage requirements.

Part Context

This part belongs to the BU42(43)xxF series of voltage detectors from ROHM Semiconductor. It is distinct from the BU4330G-TR variant, which utilizes an SSOP-5 package and NRND status. The BU4330FVE-TR represents a specialized surface-mount solution optimized for space-constrained PCB layouts while maintaining robust supervisory capabilities.

Replacement Considerations

BD5230G-1 is listed as a recommended alternative with the same pinout configuration. However, it differs in package type (SSOP-5 vs. VSOF-5) and output structure (open-drain vs. CMOS). Designers must evaluate layout changes and interface compatibility when substituting this component.