BU4833FVE-TR

Supervisors Overview

The BU4833FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features a typical under-voltage detection threshold of 3.3 V with a precision of ±1%. The device supports a reset active voltage range from 0.7 V to 7 V and operates on a CMOS process with an open-drain output type. It consumes a circuit current of 0.55 μA at off-state (VDET=4.8V) and 0.40 μA at on-state. The component includes hysteresis voltage defined as VDET x 0.05 and lacks manual reset or watchdog timer functions. It is housed in a VSOF-5 package with dimensions of 1.6x1.6 mm (t=0.6 mm) and operates within a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• CMOS low voltage detection circuit with open-drain output
• High accuracy voltage detection with ±1% precision
• Ultra-low power consumption suitable for battery-operated devices
• Compact VSOF-5 surface mount package

Supervisors Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered systems needing under-voltage protection
• General purpose supervisory circuits in consumer electronics

Supervisors Procurement Notes

Verify the specific suffix and package variant against official ROHM documentation before procurement, as availability may vary by region. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Check for any obsolescence notices or last-time buy recommendations associated with this part number to ensure long-term supply chain stability.

Supervisors Selection Notes

Select this component when a fixed 3.3 V detection threshold with high precision is required. Ensure the application does not need adjustable delay timers or manual reset capabilities, as these are absent. Verify that the VSOF-5 package footprint fits the PCB design constraints. Consider the operating temperature range and output drive capability for compatibility with downstream logic levels.

Supervisors Part Context

This part belongs to the BU48xxFVE series of standard voltage detectors from ROHM. It is functionally similar to other parts in the family but distinguished by its specific detection voltage and package type. The VSOF-5 package offers a compact solution compared to larger SOP variants, making it suitable for space-constrained designs.

Supervisors Replacement Considerations

BD5233G-1 is listed as a recommended replacement with similar specifications, though it uses an SSOP5 package and has slightly different electrical characteristics such as adjustable delay and lower current consumption.