BU4814FVE-TR

Supervisors Overview

The BU4814FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input supply voltages. It operates within a maximum power supply voltage of 7 V and features an adjustable reset delay timer with a low active state output. The device offers high precision with a threshold accuracy of ±1% and consumes minimal current, drawing 550 nA in the off state at a typical detection voltage of 4.8 V. It is housed in a compact VSOF-5 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS technology ensures ultra-low power consumption suitable for battery-operated systems
• Adjustable reset delay timer allows customization of response timing
• High detection accuracy of ±1% ensures reliable voltage supervision
• Compact VSOF-5 package facilitates space-constrained PCB layouts

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing precise under-voltage detection
• Industrial control systems operating in extended temperature environments
• Consumer electronics utilizing CMOS-compatible logic interfaces

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance documentation matches specific production batches. Validate package marking against official datasheet specifications to prevent counterfeit substitution. Request full traceability records for critical applications. Ensure storage conditions adhere to moisture sensitivity level requirements prior to reflow soldering processes.

Supervisors Selection Notes

Evaluate the fixed 1.4 V threshold against system requirements as this parameter is not user-adjustable. Compare the open-drain output capability with downstream logic levels to ensure proper interface compatibility. Assess the 7 V maximum input limit against potential transient voltage spikes in the target application. Consider the absence of manual reset functionality when designing fault recovery mechanisms. Review thermal dissipation characteristics relative to ambient operating conditions.

Supervisors Part Context

This component belongs to the BU48xx series of standard voltage detectors from ROHM Semiconductor. It shares architectural similarities with other parts in the family, such as the BU4819FVE-TR, but differs in its specific detection threshold and output configuration. The series is characterized by CMOS construction and low quiescent current, targeting general-purpose supervisory roles in portable and industrial electronics where size and power efficiency are prioritized.

Supervisors Replacement Considerations

The BD5214G-1 is documented as a similar specification replacement with comparable threshold and package dimensions. Verify pinout compatibility and electrical parameter alignment before substitution. Note that the alternative may offer different reset delay capabilities or packaging variants.