BD48L42G-TL

Overview

The BD48L42G-TL is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an open-drain output and monitors a single input with a threshold voltage of 4.2V. The device operates within a supply voltage range up to 10V and maintains a reset delay time of 100 us. It exhibits high accuracy of 1% and consumes a typical operating current of 900 nA. The component is housed in an SSOP-3 package, supports surface mount installation, and functions reliably across a temperature range from -40°C to +105°C.

Feature Summary

• Provides precise voltage monitoring with 1% accuracy for system protection
• Features ultra-low power consumption suitable for battery-operated applications
• Delivers reliable reset signals via open-drain output configuration

Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing voltage supervision
• General-purpose circuit protection against under-voltage conditions

Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing PCB footprints and validate that the SSOP-3 package meets mechanical constraints. Check for moisture sensitivity levels if storage duration exceeds specified limits.

Selection Notes

Select this part when a fixed 4.2V threshold is required for voltage supervision. Consider the 900 nA quiescent current for energy-sensitive designs. Verify that the open-drain output interface aligns with the downstream logic requirements. Ensure the operating temperature range covers the intended environmental conditions.

Part Context

This component belongs to the BD48 series of standard CMOS voltage detectors. It shares common characteristics with other variants in the family, such as similar package options and low-power architectures. The series is designed for general-purpose monitoring tasks where precise threshold detection and minimal power draw are critical design parameters.

Replacement Considerations

The BD5244G-1TR is listed as a similar specification replacement. Verify pinout compatibility and electrical parameter alignment before substitution.