LM2459 Datasheet | National Semiconductor

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 p F 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 Note: Tab is at GND Top View Order Number LM2459TE FIGURE 1. Simplified Connection and Pinout Diagram FIGURE 2. Simplified Schematic Diagram © 2004 National Semiconductor Corporation DS200678 .national. 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 Refer to Figure 11 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, < 10 sec.) ESD Tolerance, Human Body Model Machine Model Junction Temperature θJC (typ) 2k V 200V 150˚C 4.2˚C/W 300˚C +200V +15V -0.5V to VBB +0.5V - 65˚C to +150˚C Do not operate the part without a heat sink. Electrical Characteristics (See Figure 3 for Test Circuit) Unless otherwise noted: VCC = +180V, VBB = +8V, CL = 10p F, TC =...