BU4922FVE-TR

Supervisors Overview

The BU4922FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a typical under-voltage detection threshold of 2.2 V with a precision of ±1%. The device operates within a reset active voltage range of 0.7 V to 7 V and utilizes a CMOS output type. It functions without manual reset or watchdog timer capabilities. The component supports surface mount installation in a VSOF5 package and maintains low circuit current consumption, specified at 0.40 μA when on and 0.55 μA when off at Vdet=4.8V. It includes hysteresis defined as Vdet x 0.05.

Supervisors Feature Summary

• Provides precise under-voltage detection with a fixed threshold and high accuracy.
• Operates with ultra-low power consumption suitable for battery-powered applications.
• Features adjustable reset delay timer for customized timing requirements.

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing voltage supervision
• General purpose supervisory circuits in consumer electronics

Supervisors Procurement Notes

Verify the specific ordering suffix and packaging configuration against official ROHM documentation before procurement. Confirm that the VSOF5 package dimensions align with your PCB footprint design. Ensure compliance with RoHS directives if required for your manufacturing process. Check for any regional distribution restrictions or end-of-life notices associated with this specific part number variant.

Supervisors Selection Notes

Select this component when a fixed 2.2 V detection threshold is required with high precision. Consider the low standby current for energy-sensitive designs. Verify that the CMOS output interface matches the input requirements of the downstream logic. Ensure the operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

This part belongs to the BU49 series of standard voltage detectors from ROHM Semiconductor. It is distinct from similar models like the BU4922G which may use different packaging such as SSOP5. The BU4922FVE-TR specifically denotes the tape and reel packaging format within the VSOF5 package family, distinguishing it from cut-tape or other bulk packaging options.

Supervisors Replacement Considerations

The BD5222G-1 is listed as a similar level replacement with comparable specifications. Verify pin compatibility and electrical parameters against the BD5222G-1 datasheet before substitution. Note that the BD5222G-1 uses an SSOP5 package, requiring PCB layout adjustments compared to the VSOF5 package of the BU4922FVE-TR.