BD49E49G-TR

Overview

The BD49E49G-TR is a high-accuracy, low-current voltage detector IC from the BD49xxx series by ROHM Semiconductor. It features a CMOS output and monitors a single input channel with a detection threshold of 4.9V. The device operates within a supply voltage range of -0.3V to 10V and offers an accuracy of ±1%. It includes a reset delay time of 100µs and functions across a temperature range of -40°C to +105°C. The part is housed in a 5-pin SSOP package.

Feature Summary

• High-accuracy voltage monitoring with ±1% precision
• Low current consumption for power efficiency
• CMOS output type for direct logic interface

Applications

• Processor supervisor circuits
• Battery voltage monitoring systems
• Over-voltage and under-voltage protection

Procurement Notes

Verify the specific detection voltage of 4.9V matches the system requirement. Confirm the 5-pin SSOP package compatibility with the PCB footprint. Check the operating temperature range suitability for the intended environment. Ensure the CMOS output level aligns with the connected logic family. Review the datasheet for any recent design changes or obsolescence notices.

Selection Notes

Select this component when a precise 4.9V threshold is required for system supervision. Consider the low current draw for battery-powered applications. Verify that the CMOS output is sufficient for the load. Compare against other BD49xxx variants if different thresholds are needed. Ensure the SSOP-5 package fits the mechanical constraints.

Part Context

The BD49E49G-TR belongs to the BD49xxx series of voltage detectors. This series provides various detection voltages from 2.3V to 6.0V in 0.1V increments. The E-series typically denotes specific voltage thresholds within the family. These devices are designed for reliable power management in electronic systems requiring accurate voltage supervision.

Replacement Considerations

Check for direct substitutes within the BD49xxx series with similar voltage thresholds. Verify package compatibility if considering alternative manufacturers. Review performance specifications such as accuracy and current consumption for equivalence.