BU4916F-TR

Supervisors Overview

The BU4916F-TR is a standard CMOS voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages. It features a typical under-voltage detection threshold of 1.6V with high precision of ±1%. The device operates within an input voltage range of 0.7V to 7V and offers low current consumption, drawing approximately 0.40μA in the active state and 0.55μA when inactive at VDET=4.8V. It provides an open-drain output type with a reset active state of Low. The component supports a wide operating temperature range from -40°C to +125°C and is housed in a compact SOP4 package.

Supervisors Feature Summary

• Ultra-low current consumption design suitable for battery-powered applications
• High accuracy voltage detection with ±1% precision tolerance
• Wide operating voltage range supporting various system requirements
• Compact surface-mount packaging for space-constrained designs

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing reliable voltage supervision
• Embedded circuits utilizing CMOS logic families
• General-purpose supervisory circuits in consumer electronics

Supervisors Procurement Notes

Verify the specific ordering suffix and package variant before procurement, as availability may vary by region. Confirm RoHS compliance status through official documentation. Check the latest supply status directly with the manufacturer or authorized distributors, as this component may be subject to lifecycle changes or last-time-buy notices. Ensure that the selected part number matches the required detection voltage and output configuration for your specific application needs.

Supervisors Selection Notes

Select the BU4916F-TR when a precise 1.6V detection threshold is required with minimal power impact. Consider its open-drain output capability for interfacing with various logic levels. Evaluate the trade-off between its low quiescent current and the need for external pull-up resistors. Compare against similar series members if different detection voltages or package types better suit the mechanical constraints of the target design.

Supervisors Part Context

This component belongs to the BU49xx series of standard CMOS voltage detectors from ROHM. The series is characterized by high accuracy and ultra-low current consumption, offering detection voltages from 0.9V to 4.8V in 0.1V steps. The BU4916F-TR specifically targets applications requiring stable operation across a wide temperature range and robust performance in low-power environments.

Supervisors Replacement Considerations

The BD5216G-1 is listed as a recommended replacement with similar specifications. Verify compatibility regarding package differences (SSOP5 vs SOP4) and slight variations in reset delay timer functionality. Ensure that the substitute part meets all electrical requirements including detection voltage precision and operating temperature ranges.