LM2470

www.DataSheet4U.com LM2470 Monolithic Triple 7.0 ns CRT Driver April 2004 LM2470 Monolithic Triple 7.0 ns CRT Driver General Description The LM2470 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 −27 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. Features Well matched to the LM1236/46 CMOS preamplifiers Swing up to 60PP (15V - 75V) 0V to 3.75V input range Stable with 0–20 pF capacitive loads and inductive peaking networks n Convenient TO-220 staggered lead package style n Maintains standard LM246X Family pinout which is designed for easy PCB layout n n n n Applications n 1024 x 768 displays up to 85 Hz refresh n Pixel clock frequencies up to 95 MHz n Monitors using video blanking Schematic Diagram taS hee t4U .co m 20087101 FIGURE 1. Simplified Schematic Diagram (One Channel) w.D a ww © 2004 National Semiconductor Corporation DS200871 www.national.com www.DataSheet4U.com LM2470 Connection Diagram 20087102 Note: Tab is at GND Top View Order Number LM2470TA w.D a taS hee t4U .co www.national.com m ww 2 www.Data...