LM2445TA/NOPB

Overview

The LM2445TA/NOPB is a monolithic triple video line driver IC originally manufactured by National Semiconductor, now part of Texas Instruments. It is designed for RGB and composite video applications, featuring a 7.5 ns propagation delay. The device operates with a supply current of 30 mA, providing a low-power solution suitable for CRT driver circuits. It is housed in a TO-220-9 package with formed leads, facilitating integration into video amplification systems requiring high-speed signal transmission.

Feature Summary

• Monolithic triple channel design for RGB or composite video signals
• High-speed performance with 7.5 ns propagation delay
• Low power consumption with 30 mA supply current requirement
• Robust TO-220-9 package construction for thermal management

Applications

• CRT driver circuits
• RGB video amplification
• Composite video signal processing

Procurement Notes

Verify the manufacturer origin, as National Semiconductor assets were acquired by Texas Instruments. Confirm the specific suffix NOPB indicates lead-free compliance if required by your assembly process. Ensure the TO-220-9 package type matches your PCB footprint requirements. Cross-reference datasheets from both National Semiconductor archives and Texas Instruments to ensure technical specifications remain consistent across the transition.

Selection Notes

Select this component when a triple-channel video driver with fast switching speeds is required for analog video signals. The 30 mA current draw makes it suitable for power-sensitive designs compared to older discrete solutions. Consider the TO-220-9 package size for board space constraints. Verify compatibility with the intended voltage levels and load requirements for the specific CRT or display interface being driven.

Part Context

This component belongs to the family of monolithic video amplifiers and line drivers. It serves as an integrated alternative to discrete transistor arrays for driving video signals. The transition from National Semiconductor to Texas Instruments maintains the part number lineage, ensuring continuity for existing designs while updating manufacturing standards.

Replacement Considerations

Check for direct equivalents within the Texas Instruments portfolio that may have updated packaging or environmental compliance. Verify pin-to-pin compatibility before substituting with other triple video drivers. Consult official replacement guides for any discontinued variants within the same functional category.