LM2469 Datasheet | National Semiconductor

Description The LM2469 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 package. n 0V to 3.75V input range n Stable with 0-20p F capacitive loads and inductive peaking networks n Maintains standard LM243X Family Pinout which is designed for easy PCB layout n Convenient TO-220 staggered 9 lead package style Applications n Up to 1024 X 768 at 70Hz n Pixel clock frequencies up to 75MHz n Monitors using video blanking Features n Higher gain to match LM126X CMOS preamplifiers Schematic Diagram Connection Diagram DS200006-2 Note: Tab is at GND. DS200006-1 FIGURE 1. Simplified Schematic Diagram (One Channel) FIGURE 2. Top View Order Number: LM2469TA NS package Number: TA09A © 2000 National Semiconductor Corporation DS200006 .national. Absolute Maximum Ratings (Notes 1, 3) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage, VCC Bias Voltage, VBB Input Voltage, VIN Storage Temperature Range, TSTG Lead Temperature (Soldering, < 10sec.) ESD Tolerance, Human Body Model +90V +16V 0V to 4.5V -65˚C to +150˚C 300˚C 2k V Limits of Operating Ranges VCC VBB VIN VOUT (Note 2) +60V to +85V +8V to 15V 0V to +3.75V +15V to +75V Case Temperature -20˚C to +100˚C Do not operate the part without a heat sink. Electrical Characteristics (See Figure 3 for Test Circuit) Unless otherwise noted: VCC = +80V, VBB = +12V, CL = 8p F, TC = 50˚C. DC Tests: VIN = +2.25VDC AC Tests: Output = 40VPP (25V - 65V) at 1MHz Symbol ICC IBB VOUT AV ∆AV LE...