BD48K53G-TL

Overview

The BD48K53G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring single power supply lines. It features an N-channel open-drain output and operates within a maximum supply voltage of 10 V. The device detects voltages with a threshold of 5.3 V and maintains an accuracy of ±1%. It includes a fixed reset delay time of 100 µs and consumes a typical operating current of 900 nA. The component functions reliably across a temperature range of -40°C to +105°C and is housed in a compact SSOP-3 package.

Feature Summary

• Provides precise voltage supervision with high detection accuracy
• Features low power consumption suitable for battery-operated systems
• Includes a fixed internal reset delay timer for stable operation

Applications

• Processor supervisor circuits
• Battery backup switching systems
• Portable electronic devices requiring voltage monitoring

Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm availability through authorized distributors or last-time-buy channels. Ensure compatibility with existing PCB footprints and validate that replacement alternatives meet all electrical specifications. Check for moisture sensitivity levels and storage requirements prior to handling.

Selection Notes

Select this part when a specific 5.3 V detection threshold is required. Consider the SSOP-3 package constraints and open-drain output limitations. Evaluate if the fixed 100 µs delay meets system timing requirements. Compare against newer series like BD52xx for potential improvements in current consumption or pinout flexibility.

Part Context

This component belongs to the BD48xxx series of voltage detectors. The series offers various detection voltages in 0.1 V increments. These ICs are characterized by CMOS construction and low current draw. They are intended for general-purpose power management applications where reliable voltage supervision is critical.

Replacement Considerations

BD5250G-1TR is listed as a recommended substitute with similar specifications.