LM2408 Datasheet | National Semiconductor

Description The LM2408 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 The gain of each channel is internally set at b15 and can drive CRT capacitive loads as well as resistive loads presented by other applications limited only by the package’s power dissipation The IC is packaged in an industry standard 11-Lead TO-220 molded plastic power package See thermal considerations on page 5 Features Rise fall times typically 4 5 ns with 8 p F load Output swing capability 50 VPP for VCC e 80 40 VPP for VCC e 70 30 VPP for VCC e 60 Pinout designed for easy PCB layout 1V to 7V input range Stable with 0 p F - 20 p F capactive loads Convenient TO-220 staggered lead package style Applications CRT driver for 1280 c 1024 (Non-interfaced) and XGA display resolution color monitors Pixel clock frequency up to 160 MHz Schematic and Connection Diagrams TL H 12683 - 2 Note Tab is at GND Top View TL H 12683 - 1 FIGURE 1 Simplified Schematic Diagram (One Channel) C1996 National Semiconductor Corporation TL H 12683 RRD-B30M126 Printed in U S A http national Absolute Maximum Ratings (Notes 1 and 3) a 95V Supply Voltage (VCC) a 16V Bias Voltage (VBB) b 0 5V to VBIAS a 0 5V Input Voltage (VIN) b 65 C to a 150 C Storage Temperature Range (TSTG) Lead Temperature (Soldering k10 sec ) 300 C ESD Tolerance 2 k V Operating Ranges (Note 2) a 8V to a 15V a 1V to a 7V VIN b 20 C to a 100 C Case Temperature (TCASE) Do not operate the part without a heat sink VCC VBB a 60V to a 85V Electrical Characteristics Unless otherwise noted VCC e a 80V VBB e a 12V VIN e a 3 2V (at LM2408 input pins) CL e 8 p F Output e 40 VPP at 1 MHz TA e 25 C Symbol ICC IBB VOUT AV D AV LE t R t F Parameter Supply Current Bias Current DC Output Voltage DC Voltage Gain Gain Matching Linearity Error Rise Time Fall Time No Input Signal No...