BU4332FVE-TR

Overview

The BU4332FVE-TR is a CMOS low-voltage detector manufactured by ROHM Semiconductor, designed for power supply monitoring. It features an adjustable reset delay timer and operates within a maximum supply voltage of 7 V. The device provides high accuracy with a threshold precision of ±1% and includes hysteresis voltage defined as Vdet multiplied by 0.05. It supports a reset active voltage range from 0.8 to 6 V and consumes minimal current, specified at 0.23 μA in the off state and 0.27 μA in the on state. The component is housed in a VSOF-5 package.

Feature Summary

• CMOS output type for efficient power management integration
• Built-in adjustable delay circuit for customized reset timing
• High-accuracy voltage detection with specified hysteresis

Applications

• Power supply voltage monitoring in electronic systems
• Supervisory circuits requiring precise under-voltage detection
• Low-power consumer electronics requiring compact supervision

Procurement Notes

Verify the obsolete status and limited availability before procurement planning. Confirm that the VSOF-5 package dimensions match your PCB layout requirements. Ensure compatibility with the 0.8 to 6 V reset active voltage range for your specific application needs. Check for recommended alternative part numbers if continuous production is required.

Selection Notes

Select this component when a CMOS output and adjustable delay are necessary for voltage supervision. Consider the ±1% precision and low current consumption for sensitive applications. Verify that the operating temperature range of -40°C to +125°C meets environmental specifications. Compare against similar level parts like BD5233G-1 for pinout compatibility.

Part Context

This part belongs to the BU42(43)xxFVE series of voltage detectors. It is classified as a supervisory circuit within ROHM's power management portfolio. The device is designed for surface-mount installation using the VSOF-5 package. It serves as a specialized solution for monitoring single-input voltage levels in portable and industrial devices.

Replacement Considerations

The BD5233G-1 is listed as a similar level replacement with the same pinout. Verify functional equivalence regarding the adjustable delay and output types before substitution.