LM2468 Datasheet | National Semiconductor

Description The LM2468 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 Matched to the LM126X series preamplifier and LM2479/2480 bias clamp 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 60 Hz (or 800 X 600 at 72/75 Hz) n Pixel clock frequencies up to ∼50 MHz n Monitors using video blanking Features n Higher gain to acmodate CMOS preamplifiers Schematic Diagram Connection Diagram DS200135-2 Note: Tab is at GND. DS200135-1 FIGURE 1. Simplified Schematic Diagram (One Channel) FIGURE 2. Top View Order Number: LM2468TA NS package Number: TA09A © 2000 National Semiconductor Corporation DS200135 .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 (Note 2) VCC +60V to +85V +8V to 15V VBB 0V to +3.75V VIN +15V to +75V VOUT Case Temperature -20˚C to +115˚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...