BU4832F-TR

Supervisors Overview

The BU4832F-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed under-voltage detection threshold of 3.2 V with a precision accuracy of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and supports an open-drain output type. It functions without manual reset or watchdog timer capabilities. The component is housed in a SOP-4 package and maintains a low operating current of 0.40 μA at the specified detection voltage.

Supervisors Feature Summary

• CMOS technology enables ultra-low power consumption suitable for battery-operated systems
• Fixed threshold voltage provides precise under-voltage monitoring without external components
• Open-drain output interface allows flexible logic level interfacing

Supervisors Applications

• Microprocessor reset circuits
• Battery voltage monitoring systems
• Portable electronic device power management

Supervisors Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with existing PCB footprints. Confirm that the SOP-4 package dimensions match the design requirements. Check for any end-of-life notifications or last-time-buy statuses directly from the manufacturer before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 3.2 V threshold is required for system supervision. Consider the open-drain output configuration for compatibility with various logic families. Evaluate the low static current consumption against total system power budgets. Ensure the operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

This part belongs to the BU483x series of standard voltage detectors manufactured by ROHM Semiconductor. These devices are engineered for high reliability and low power operation in consumer and industrial electronics. The series offers various threshold voltages to accommodate different supply rail requirements while maintaining consistent performance characteristics across the family.

Supervisors Replacement Considerations

The BD5232G-1TR is listed as a similar specification replacement. Note that it utilizes an SSOP5 package instead of SOP4, requiring footprint adaptation. It offers adjustable delay timing and slightly different current consumption profiles compared to the BU4832F-TR.