BD49K54G-TL

Overview

The BD49K54G-TL is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 5.4 V with an accuracy of ±1%. The device operates within a supply voltage range up to 10 V and consumes a typical operating current of 900 nA. It provides a reset delay time of 100 µs and functions reliably across a temperature range of -40°C to +105°C. Housed in an SSOP-3 package, it supports surface mount installation.

Feature Summary

• CMOS output type for low power consumption
• High precision voltage detection with ±1% accuracy
• Compact SSOP-3 surface mount packaging

Applications

• Portable equipment requiring low standby current
• Battery-powered systems needing voltage supervision
• General purpose electronic circuits requiring reset signals

Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete or end-of-life. Confirm RoHS compliance details via official datasheets before integration. Check for moisture sensitivity handling requirements during storage and assembly processes to ensure reliability.

Selection Notes

Select this component when a fixed 5.4 V threshold is required with minimal quiescent current. The SSOP-3 package suits space-constrained designs. Ensure the application does not require manual reset or watchdog timer functionalities, as these are absent in this specific model variant.

Part Context

This component belongs to the BD49 series of voltage detectors from ROHM Semiconductor. It is part of a family offering various threshold voltages and packages. The BD49K54G-TL specifically targets applications needing precise monitoring at 5.4 V with high accuracy and low power operation in a small form factor.

Replacement Considerations

BD5250G-1TR is a recommended replacement with similar specifications but different package options.