BD48L45G-TL

Overview

The BD48L45G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring single-input power supplies. It features an N-channel open-drain output and operates within a supply voltage range of up to 10 V. The device detects voltages with a threshold of 4.5 V and maintains an accuracy of ±1%. It consumes 900 nA of operating current and includes a reset delay time of 100 µs. The component functions in temperatures from -40 °C to +105 °C and is housed in an SSOP-3 package.

Feature Summary

• High detection accuracy of ±1% for reliable voltage monitoring
• Ultra-low current consumption of 900 nA for energy efficiency
• Compact SSOP-3 surface-mount packaging for space-constrained designs

Applications

• Microcontroller system supervision
• CPU power rail monitoring
• DSP voltage detection

Procurement Notes

Verify the specific suffix TL against official datasheets to confirm reel specifications. Confirm that the SSOP-3 pinout matches the target footprint, as variations exist within the family. Check RoHS compliance status directly with the manufacturer or authorized distributors before integration. Ensure the lead-free designation aligns with assembly requirements.

Selection Notes

Select this part when a CMOS output is not required, as it utilizes an open-drain configuration. Compare against the BD49L45G-TL if a push-pull CMOS output is necessary for the same voltage threshold. Consider the BD48K45G-TL if different packaging or minor parameter adjustments are acceptable. Verify that the 10 V maximum supply voltage meets the application's peak input requirements.

Part Context

This component belongs to the BD48xxx series of highly accurate, low-current voltage detectors. The series distinguishes itself by offering N-channel open-drain outputs, contrasting with the BD49xxx series which provides CMOS outputs. Both families share similar accuracy and low-power characteristics but differ in output drive capabilities and interface compatibility.

Replacement Considerations

BD49L45G-TL: Similar specification with CMOS output instead of open-drain.