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LM2412 and LM2413 Offer High Performance, Low Power, Ease of Design and Lower System Cost Over Hybrid Approaches

Dec 20, 1999

December 20, 1999- National Semiconductor Corporation (NYSE:NSM) today announced two new monolithic triple-channel drivers for larger CRTs: The 2.8nsec LM2412 designed to meet the requirements of 19-inch and larger CRTs and the 4nsec LM2413 for high-end 17-inch monitors. These two devices feature low AC power, a minimum requirement for external components, and National's standard 11-lead package for quick time to market.

The LM2412 is designed for color monitors with display resolutions of up to 1600 x 1200 at 75Hz refresh rates and pixel frequencies of 200MHz. The LM2413 is ideal for applications with 1280 x 1024 display resolution and up to a 165MHz pixel frequency. With an improvement in cathode speeds from the well-known LM2415, the LM2413 offers a new low power, price/performance point for monitor designers.

"The LM2412 and LM2413 continue National's leadership in providing the monolithic triple-channel driver solutions for CRT monitors. Because of their low AC power dissipation, these two devices enable customers to reduce their overall system costs without having to sacrifice performance," said Muthanna Salman, marketing director for displays at National. "There are no other drivers on the market that can offer the same speed with such minimal power dissipation. Our customers will find these devices easier to design in because of their successful experience in using other National monolithic drivers, and the pin-to-pin compatibility of the LM2412 and LM2413 with their predecessors."

Each monolithic high-voltage device contains three high-input impedance, wide-band amplifiers that drive the RGB cathodes in a CRT. Each channel has its gain internally set to -14 and can drive CRT capacitive loads as well as resistive loads present in other applications, limited only by the package's power dissipation.

Specifications shared by the LM2412 and LM2413 include a 0V to 5V input stage, stable 0pF to 20pF capacitive loads and inductive networks. Because they conveniently use the same TO-220 staggered lead package style and a standard 11-lead family pin-out, the two drivers offer CRT designers a consistent PCB design that significantly improves time-to-market.

They operate from power supplies ranging from +60 to +85V. The cascade output stage is capable of driving 8pF, 40Vp-p swing at a maximum output voltage of 68V DC.

Pricing and Availability
Available now, the LM2412 is priced at $5.00 each in 1000-unit quantities. The LM2413 is priced at $3.50 in 1000-unit quantities. They are housed in an 11-lead TO-220 package.

For more information on the LM2412 and LM2413, visit National's Web site at LM2412, LM2413, or contact National's Customer Response Group at 1-800-272-9959.

About National Semiconductor
National Semiconductor provides system-on-a-chip solutions for the information age. Combining real-world analog and state-of the-art digital technology, the company's chips lead many sectors of the personal computer, communications, and consumer markets. With headquarters in Santa Clara, California, National reported sales of $2 billion for its last fiscal year and currently has about 11,000 employees worldwide. Additional company and product information is available on the World Wide Web at www.national.com.