LM2445

OBSOLETE LM2445 www.ti.com SNOSA55A – MAY 2004 – REVISED NOVEMBER 2011 LM2445 Monolithic Triple 7.5 ns CRT Driver Check for Samples: LM2445 FEATURES 1 2 Higher gain to match LM126X CMOS preamplifiers 0V to 3.75V input range Stable with 0–20 pF capacitive loads and inductive peaking networks Convenient TO-220 staggered lead package style Maintains standard LM243X Family pinout which is designed for easy PCB layout APPLICATIONS 1024 x 768 displays up to 85 Hz refresh Pixel clock frequencies up to 95 MHz Monitors using video blanking DESCRIPTION The LM2445 is an integrated high voltage CRT driver circuit designed for use in color monitor applications. The IC contains three high input impedance, wide band amplifiers which directly drive the RGB cathodes of a CRT. Each channel has its gain internally set to −20 and can drive CRT capacitive loads as well as resistive loads present in other applications, limited only by the package's power dissipation. The IC is packaged in an industry standard 9-lead TO-220 molded plastic power package. See the Thermal Considerations section for more information. Schematic Diagram Figure 1. Simplified Schematic Diagram (One Channel) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. 2 PRODUC...