LM2436 Monolithic Triple 7.5 ns CRT Driver
June 2002
LM2436
Monolithic Triple 7.5 ns CRT Driver
General Description
The LM2436 is an integrated high voltage CRT driver circuit
designed for use in color monitor applications. The IC con-
tains three high input impedance, wide band amplifiers
which directly drive the RGB cathodes of a CRT. Each
channel has its gain internally set to 鈭?4 and can drive CRT
capacitive loads as well as resistive loads present in other
applications, limited only by the package鈥檚 power dissipation.
The IC is packaged in an industry standard 9-lead TO-220
molded plastic power package. See the Thermal Consider-
ations section for more information.
Features
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Well matched with LM1279 video preamp
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0V to 5V input range
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Stable with 0鈥?0 pF capacitive loads and inductive
peaking networks
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Convenient TO-220 staggered lead package style
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Standard LM243X Family Pinout which is designed for
easy PCB layout
Applications
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1024 x 768 displays up to 85 Hz refresh
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Pixel clock frequencies up to 100 MHz
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Monitors using video blanking
Schematic Diagram
20043501
FIGURE 1. Simplified Schematic Diagram
(One Channel)
漏 2002 National Semiconductor Corporation
DS200435
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