BD48L49G-TL

Overview

The BD48L49G-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 4.9 V and offers high accuracy of ±1%. It consumes a typical operating current of 900 nA and includes a reset delay time of 100 µs. The component supports an operating temperature range from -40°C to +105°C and is housed in a compact SSOP-3 package.

Feature Summary

• High detection accuracy of ±1% ensures reliable voltage monitoring.
• Ultra-low current consumption of 900 nA minimizes power usage.
• N-channel open-drain output facilitates flexible logic interfacing.

Applications

• Processor supervisor circuits requiring precise voltage tracking
• Battery-powered systems needing low quiescent current
• General electronic equipment monitoring power integrity

Procurement Notes

Verify the obsolete status and last-time-buy availability through authorized distributors. Confirm RoHS compliance details and moisture sensitivity levels before procurement. Ensure the SSOP-3 package matches your PCB footprint requirements. Check for any specific handling instructions due to humidity sensitivity.

Selection Notes

Select this component when a fixed 4.9 V threshold is required with open-drain output capability. Consider the 100 µs reset delay for timing constraints. Evaluate the -40°C to +105°C temperature range against environmental conditions. Compare power consumption needs against other supervisory ICs if lower current is critical.

Part Context

Part of the BD48xxx series, which provides highly accurate, low-current voltage detectors. This series complements the BD49xxx line, which offers CMOS outputs instead of open-drain. Both families share similar performance characteristics but differ in output structure.

Replacement Considerations

BD48L45G-TL: Similar specification with different threshold voltage (4.5 V).

FAQ

Does the BD48L49G-TL include a manual reset function?

No, the device does not feature a manual reset input; it operates automatically based on the detected voltage level.

What is the output type of this voltage detector?

The BD48L49G-TL utilizes an N-channel open-drain output configuration.