BU4932FVE-TR

Supervisors Overview

The BU4932FVE-TR is a standard voltage detector IC from ROHM Semiconductor, currently designated as obsolete. It features a CMOS output type with a typical under-voltage detection threshold of 3.2 V and a precision of ±1%. The device operates within a reset active voltage range of 0.7 to 7 V. Key electrical parameters include a circuit current of 0.40 μA (ON) and 0.55 μA (OFF) at VDET=4.8V, with hysteresis defined as VDET x 0.05. It lacks manual reset, watchdog timer, and automotive qualification. The component is housed in a VSOF5 package.

Supervisors Feature Summary

• CMOS output configuration for digital logic interfacing
• High accuracy voltage detection with specified tolerance
• Low power consumption suitable for battery-operated systems
• Compact surface-mount packaging for space-constrained designs

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing reliable power monitoring
• General-purpose supervisory circuits in consumer electronics
• Embedded systems utilizing standard CMOS logic levels

Supervisors Procurement Notes

This component is officially classified as obsolete by the manufacturer. Procurement must rely on last-time buy opportunities or secondary market distributors. Verify authenticity and storage history carefully due to potential shelf-life degradation. Confirm that the VSOF5 package dimensions match the target PCB footprint before finalizing any legacy replacement strategy.

Supervisors Selection Notes

Engineers should evaluate the BD5232G-1 as a recommended replacement with similar specifications. Note that the substitute utilizes an SSOP5 package rather than VSOF5, requiring mechanical re-evaluation. The replacement offers comparable detection voltage but may differ in output drive characteristics and package thermal properties. Ensure design modifications accommodate the physical form factor change.

Supervisors Part Context

The BU4932 series represents ROHM's standard CMOS reset IC lineup designed for high accuracy and low current consumption. This specific model provides a fixed detection voltage without adjustable delay or manual reset functions. It belongs to a family offering various thresholds from 0.9V to 4.8V, allowing selection based on specific supply rail requirements.

Supervisors Replacement Considerations

BD5232G-1 is listed as a recommended replacement with similar specifications. However, it uses an SSOP5 package instead of VSOF5. Verify pinout compatibility and mechanical fit before substitution.