BD49L55G-TL

Overview

The BD49L55G-TL is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a fixed threshold detection voltage of 5.5 V with a precision of ±1%. The device operates within a reset active voltage range of 0.95 V to 10 V and supports a maximum power supply voltage of 10 V. It consumes a typical operating current of 900 nA and includes a fixed reset delay time of 100 µs. The component is housed in an SSOP-3 package and functions across a temperature range of -40°C to +105°C.

Feature Summary

• CMOS output type for low power consumption
• High accuracy voltage detection with ±1% precision
• Fixed reset delay timer functionality

Applications

• Microcontroller system supervision
• CPU power monitoring
• DSP voltage tracking

Procurement Notes

Verify the obsolete status before procurement planning. Confirm availability through authorized distributors or last-time buy channels. Ensure compatibility with existing PCB footprints and design specifications. Check for moisture sensitivity levels if storage conditions are relevant. Validate that the SSOP-3 package meets mechanical constraints.

Selection Notes

Select this component when a fixed 5.5 V threshold is required for voltage monitoring. Consider the low standby current for battery-operated applications. Verify that the SSOP-3 package size fits the design constraints. Ensure the operating temperature range meets environmental requirements. Compare against similar models if adjustable thresholds are needed.

Part Context

This part belongs to the BD49 series of standard voltage detectors from ROHM Semiconductor. These devices are engineered for reliability in supervisory circuits. The series offers various threshold voltages to suit different power rail requirements. The BD49L55G-TL specifically targets applications requiring precise 5.5 V detection.

Replacement Considerations

The BD5250G-1TR is listed as a recommended replacement with similar specifications. Note that the substitute uses an SSOP-5 package instead of SSOP-3. Verify pinout compatibility and electrical parameter alignment before substitution.