BD49K47G-TL

Overview

The BD49K47G-TL is a CMOS voltage detector IC from the ROHM BD49 series, housed in an SSOP-3 package. It features a fixed detection threshold of 4.7V with 1% accuracy and a reset delay time of 100 µs. The device operates within a supply voltage range up to 10V and consumes 900 nA of operating current. It supports an extended temperature range from -40°C to +105°C and includes no manual reset or watchdog timer functions.

Feature Summary

• CMOS output interface for direct logic integration
• High precision voltage detection with 1% threshold accuracy
• Ultra-low power consumption suitable for battery-operated systems

Applications

• Processor supervisor circuits requiring stable voltage monitoring
• Battery backup switching systems
• Portable electronic devices with strict power constraints

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements during storage and handling. Check for obsolescence notices and ensure final purchase timing aligns with production lifecycle needs.

Selection Notes

Select this component when a fixed 4.7V threshold with high accuracy is required. Consider the low quiescent current for energy efficiency. Verify that the SSOP-3 package fits the design footprint and that the absence of a watchdog timer meets system safety requirements.

Part Context

Part of the BD49 series of voltage detectors. Designed for applications needing precise voltage supervision without complex control features. Manufactured by ROHM Semiconductor using CMOS technology for low power operation.

Replacement Considerations

BD5247G-1 is listed as a replacement with similar specifications but different package and output type.