Texas Instruments LM2459
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.FEATURES
1●2 15MHz Bandwidth 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
● Transient Response Improvement Option Via Pin 6 (EM)
APPLICATIONS
● AC Coupled DTVAPPLICATIONS
Using the 480p Format as well as Standard NTSC and PAL FormatsDESCRIPTION
The IC is packaged in a staggered 7-lead TO (KCS) molded plastic power package designed specifically to meet high voltage spacing requirements. See THERMAL CONSIDERATIONS section. CONNECTION DIAGRAM SCHEMATIC DIAGRAM 7 VIN 6 EM 5 GND 4 VBB 3 GND 2 VOUT 1 VCC Note: Tab is at GND Figure 1. Simplified Connection and Pinout Diagram (Top View) Figure 2. Simplified Schematic Diagram 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners.