220V Monolithic Triple Channel 10 MHz CRT DTV Driver
LM2425 220V Monolithic Triple Channel 10 MHz CRT DTV Driver
November 2004
LM2425 220V Monolithic Triple Channel 10 MHz...
Description
LM2425 220V Monolithic Triple Channel 10 MHz CRT DTV Driver
November 2004
LM2425 220V Monolithic Triple Channel 10 MHz CRT DTV Driver
General Description
The LM2425 is a triple channel 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 −53 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 15 MHz bandwidth at 130VPP output swing n Up to 170VPP output swing with AC coupling to cathodes n 0V to 5V input voltage range n Stable with 0 pF–20 pF capacitive loads and inductive peaking networks n Convenient TO-220 staggered thin lead package style
Applications
n AC or DC coupled DTV applications.
Connection Diagram
Schematic Diagram
20124101
FIGURE 1. Top View Order Number LM2425TE See NS Package Number TE11B NOPB Available only with lead free plating FIGURE 2. Simplified Schematic Diagram (One Channel)
20124102
© 2004 National Semiconductor Corporation
DS201241
www.national.com
LM2425
Absolute Maximum Ratings
3)
(Notes 1,
Operating Ratings (Note 2)
VCC VBB VIN VOUT Case Temperature Do not operate the part with...
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