LM2459

LM2459 Monolithic Single Channel 15 MHz DTV CRT Driver May 2004 LM2459 Monolithic Single Channel 15 MHz DTV CRT Driver General Description The LM2459 is a single channel high voltage CRT driver circuit designed for use in DTV applications. The IC contains a high input impedance, wide band amplifier which directly drives the cathode of a CRT. The amplifier has its gain internally set to −51 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 a staggered 7-lead TO-220 molded plastic power package designed specifically to meet high voltage spacing requirements. See Thermal Considerations section. Features 15MHz bandwith at 130VPP output swing 0V to 4V input range Greater than 130VPP output swing capability Stable with 0–20 pF capacitive loads and inductive peaking networks n Transient response improvement option via pin 6 (EM) n n n n Applications n AC coupled DTV applications using the 480p format as well as standard NTSC and PAL formats. Connection Diagram Schematic Diagram 20067802 Note: Tab is at GND Top View Order Number LM2459TE FIGURE 1. Simplified Connection and Pinout Diagram FIGURE 2. Simplified Schematic Diagram 20067801 © 2004 National Semiconductor Corporation DS200678 www.national.com LM2459 Absolute Maximum Ratings 3) (Notes 1, Operating Ranges (Note 2) VCC VBB VIN VOUT Case Temperature +130V to +180V +7V to +13V +0V to +4V +25V to +178V ...