BU4333G-TR

Overview

The BU4333G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features an adjustable delay timer and operates within a reset active voltage range of 0.7V to 7V. The typical under-voltage detection threshold is 3.3V with a precision of ±1%. The device draws a circuit current of 0.40μA when on and 0.55μA when off at Vdet=4.8V. It utilizes an SSOP-5 package and supports tape-and-reel packaging with a unit quantity of 3000.

Feature Summary

• CMOS technology ensures low power consumption during operation.
• Includes an adjustable delay timer function for customized reset timing.
• Provides open-drain output compatible with various logic families.

Applications

• Microprocessor system reset circuits
• Portable equipment power management
• Battery-operated device supervision

Procurement Notes

Verify the specific ordering suffix and package type against the official datasheet before procurement. Confirm that the component status aligns with project requirements, as availability may vary. Ensure compatibility with existing design constraints regarding pinout and electrical specifications.

Selection Notes

Select this component for applications requiring precise voltage monitoring with customizable reset delays. Consider the low standby current for battery-sensitive designs. Verify that the operating temperature range and package size meet the physical and environmental constraints of the target application.

Part Context

This part belongs to ROHM's BU43xx series of voltage detectors, which are widely used for supervising power rails in consumer electronics and industrial systems. The series offers various detection thresholds and package options to suit different design needs while maintaining high reliability and low power characteristics.

Replacement Considerations

The BD5233G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence and parameter alignment before substitution.