BD48L40G-TL

Overview

The BD48L40G-TL is a standard voltage detector IC from ROHM Semiconductor, designed for monitoring power supply lines. It features an N-channel open-drain output and operates within a detection voltage range of 2.3V to 6.0V, with this specific unit set at 4.0V. The device supports a maximum supply voltage of 10V and includes a reset delay timer. It functions reliably across an extended temperature range from -40°C to +105°C, ensuring stable performance in various electronic applications.

Feature Summary

• Provides precise under-voltage detection with high accuracy for reliable system supervision
• Features an N-channel open-drain output compatible with various logic families
• Operates over a wide supply voltage range up to 10V for flexible integration

Applications

• Processor supervisor circuits requiring voltage monitoring
• Battery-powered devices needing low-power supervision
• General-purpose voltage detection in embedded systems

Procurement Notes

Verify the exact suffix and package type during procurement to ensure compatibility with your design requirements. Confirm RoHS compliance status as per current manufacturing standards. Check for any obsolescence notices or last-time-buy notifications directly from the manufacturer before finalizing orders to avoid supply chain disruptions.

Selection Notes

Select this component when a fixed 4.0V threshold is required for under-voltage detection. Consider the open-drain output configuration for interfacing with different logic levels. Ensure the operating temperature range meets your application's environmental conditions. Verify that the 10V maximum supply voltage aligns with your system's power rails.

Part Context

This part belongs to the BD48 series of voltage detectors, which are known for low current consumption and high precision. The series offers various detection voltages in 0.1V increments, allowing designers to tailor supervision thresholds precisely. The BD48L40G-TL specifically targets applications needing a 4.0V reset point with minimal quiescent current.

Replacement Considerations

BD5240G-1 is listed as a recommended replacement with similar specifications. Note that the replacement uses an SSOP-5 package instead of SSOP-3, requiring PCB layout adjustments. Verify pinout compatibility and electrical parameter alignment before substitution.