BD49L45G-TL

Overview

The BD49L45G-TL is a CMOS output voltage detector IC from ROHM Semiconductor, housed in an SSOP-3 package. It features a fixed detection threshold of 4.5 V with ±1% accuracy and a reset delay time of 100 µs. The device operates within a supply voltage range of 2.3 V to 10 V and consumes 900 nA of operating current. It supports an extended temperature range from -40°C to +105°C.

Feature Summary

• CMOS output configuration for direct logic interface
• High precision voltage detection capability
• Ultra-low power consumption design

Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing reliable power monitoring
• Embedded circuits utilizing single-input voltage supervision

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance documentation matches the specific manufacturing batch. Ensure handling procedures account for moisture sensitivity levels indicated in the datasheet. Validate that the SSOP-3 footprint aligns with existing PCB layouts before integration into production workflows.

Selection Notes

Select this component when a fixed 4.5 V threshold with high accuracy is required. The CMOS output suits applications needing standard logic compatibility without external pull-ups. Consider the low quiescent current for battery-operated designs. Verify that the absence of manual reset or watchdog features meets system safety requirements.

Part Context

This part belongs to the BD49xxx series of highly accurate, low-current voltage detectors. The series distinguishes itself by offering CMOS outputs, unlike the BD48xxx series which provides N-channel open-drain outputs. Both families share similar accuracy and low-power characteristics but differ in output stage topology.

Replacement Considerations

BD5245G-1 is listed as a recommended replacement with similar specifications.