LM2463TA/NOPB

Overview

The LM2463TA/NOPB is a monolithic triple high-voltage CRT driver circuit designed for color monitor applications. It integrates three high input impedance, wide-band amplifiers that directly drive RGB cathodes with an internal gain of -20. The device operates on +80V and +12V supplies, supporting pixel clock frequencies up to 180 MHz. It features fast rise and fall times of approximately 4 ns and maintains standard LM240X family pinout compatibility.

Feature Summary

• Integrates three high input impedance, wide band amplifiers for direct RGB cathode driving
• Internally set gain of -20 matches CMOS preamplifiers like the LM126X series
• Stable operation with capacitive loads up to 20 pF and inductive peaking networks
• Maintains standard LM240X Family pinout for simplified PCB layout

Applications

• Color monitors requiring 1600 x 1200 displays at 70Hz refresh rates
• Video channels utilizing pixel clock frequencies up to 180 MHz
• Displays employing video blanking techniques

Procurement Notes

Verify component authenticity through authorized distributors or Texas Instruments directly. Confirm the presence of the NOPB suffix indicating lead-free and RoHS compliance. Ensure the package matches the 11-lead TO-220 molded plastic power style. Review the datasheet for absolute maximum ratings to prevent damage during handling and installation.

Selection Notes

Select this component for high-resolution CRT driver designs requiring precise channel matching and stability under capacitive loads. Ensure adequate heat sinking is provided as the case temperature must remain below 100°C. Verify supply voltage ranges (+60V to +85V) fit the system design. Consider arc protection circuits to safeguard against high-energy pulses from CRT arcover events.

Part Context

The LM2463 belongs to the LM240X family of video amplifier integrated circuits. It serves as a successor to earlier models, offering higher gain to interface effectively with LM126X CMOS preamplifiers. The device is part of Texas Instruments' portfolio for display technologies, specifically targeting professional and high-end consumer monitor markets.

Replacement Considerations

Compatible substitutes within the LM240X family include the LM2460, LM2461, and LM2462. These parts share similar pinouts but may differ in specific performance characteristics such as gain or bandwidth. Consult individual datasheets to verify suitability for the intended application before substitution.