BU4932F-TR

Supervisors Overview

The BU4932F-TR is a standard voltage detector IC from ROHM Semiconductor, classified as Not Recommended for New Designs (NRND). It features a typical under-voltage detection threshold of 3.2V with ±1% precision. The device operates within a reset active voltage range of 0.7V to 7V and utilizes a CMOS output type with a low-active reset state. Key electrical characteristics include a circuit current of 0.40μA in the ON state and 0.55μA in the OFF state at VDET=4.8V. Hysteresis is defined as VDET multiplied by 0.05. The component is supplied in an SSOP5 package with a taping packing type.

Supervisors Feature Summary

• CMOS output architecture providing low-active reset functionality
• High-accuracy voltage detection with ±1% precision tolerance
• Low power consumption suitable for battery-operated applications
• Integrated hysteresis to prevent output oscillation

Supervisors Applications

• Portable electronic devices requiring precise power monitoring
• Battery-powered systems needing low quiescent current supervision
• General-purpose voltage level detection in consumer electronics

Supervisors Procurement Notes

This component is designated as Not Recommended for New Designs (NRND) by the manufacturer. Procurement should be limited to existing production needs or replacement purposes only. Verify final availability through authorized distributors, as supply status may vary. Ensure compliance with RoHS directives if required for specific regional regulations before placing orders.

Supervisors Selection Notes

Select this part only for legacy system maintenance or direct replacement scenarios where the original design specifications are fixed. For new designs, consider alternative components such as the BD5232G-1 series which offers similar package compatibility but updated manufacturing status. Evaluate whether the specific 3.2V threshold and CMOS output characteristics align precisely with the target application requirements.

Supervisors Part Context

The BU4932F belongs to the BU49xx series of standard CMOS reset ICs designed for high accuracy and low current consumption. This series provides various detection voltages ranging from 0.9V to 4.8V in 0.1V increments. The BU4932F specifically targets applications requiring a 3.2V threshold. It is packaged in a compact SSOP5 form factor, suitable for space-constrained printed circuit board layouts.

Supervisors Replacement Considerations

The BD5232G-1 is listed as a recommended replacement with the same SSOP5 package. Note that the BD5232G-1 features an open-drain output instead of CMOS and includes an adjustable delay timer, unlike the fixed immediate response of the BU4932F.