Monolithic Triple Channel 15MHz DTV Driver
LM2429 Monolithic Triple Channel 15 MHz DTV Driver
October 2004
LM2429 Monolithic Triple Channel 15 MHz DTV Driver
Gen...
Description
LM2429 Monolithic Triple Channel 15 MHz DTV Driver
October 2004
LM2429 Monolithic Triple Channel 15 MHz DTV Driver
General Description
The LM2429 is an integrated high voltage CRT driver circuit designed for use in DTV 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 −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 an industry standard 11-lead TO-220 molded plastic power package designed specifically to meet high voltage spacing requirements. See Thermal Considerations section.
Features
n 0V to 5V input range n Greater than 130VPP output swing capability n Stable with 0–20 pF capacitive loads and inductive peaking networks n Convenient TO-220 staggered thin lead package style
Applications
n AC coupled DTV applications using the 480p format as well as standard NTSC and PAL formats.
Connection Diagram
Schematic Diagram
20073102
Note: Tab is at GND
Top View Order Number LM2429
20073101
FIGURE 1. Simplified Connection and Pinout Diagram FIGURE 2. Simplified Schematic Diagram (One Channel)
© 2004 National Semiconductor Corporation
DS200731
www.national.com
LM2429
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 +15V to +175V Refer to Figure 1...
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