BD48K45G-TL

Overview

The BD48K45G-TL is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an open-drain output and monitors a single input channel with a threshold voltage of 4.5 V. The device operates within a supply voltage range of 2.3 V to 10 V, with a maximum operating voltage of 10 V. It exhibits high accuracy of ±1% and includes a reset delay time of 100 µs. The component consumes 900 nA of operating current and functions across a temperature range of -40°C to +105°C. It is housed in an SSOP-3 package.

Feature Summary

• Provides precise voltage monitoring with ±1% detection accuracy for system supervision.
• Features low power consumption with a typical operating current of 900 nA.
• Utilizes an N-channel open-drain output interface for flexible logic integration.

Applications

• Processor supervisor circuits requiring stable voltage monitoring
• Battery-powered devices needing low quiescent current management
• Industrial control systems operating in extended temperature environments

Procurement Notes

Verify the specific suffix G-TL against the official datasheet to confirm pinout orientation and packaging details. Confirm end-of-life status as sources indicate this part may be discontinued or subject to last-time buy restrictions. Ensure compatibility with existing PCB footprints for the SSOP-3 package before procurement planning.

Selection Notes

Select this component when a fixed 4.5 V threshold is required for single-channel supervision. Consider the 100 µs reset delay and open-drain output characteristics for timing constraints. Evaluate the SSOP-3 package size against available board space. Verify that the 10 V maximum supply voltage aligns with the target circuit's power rails.

Part Context

This device belongs to the BD48 series of standard CMOS voltage detectors from ROHM. The series offers various detection voltages in 0.1 V increments. The BD48K45G-TL specifically targets applications requiring reliable supervision at the 4.5 V level with minimal power draw.

Replacement Considerations

BD5245G-1 is listed as a recommended replacement with similar specifications, though it uses an SSOP-5 package instead of SSOP-3. Verify pinout compatibility and package dimensions before substitution.