LM2406 Monolithic 9 ns Triple CRT Driver
June 1995
LM2406
Monolithic Triple 9 ns CRT Driver
General Description
The LM2406 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 The gain of
each channel is internally set at
b
14 5 and can drive CRT
capacitive loads as well as resistive loads presented by oth-
er applications limited only by the package鈥檚 power dissipa-
tion
The IC is packaged in an industry standard 11 lead TO-220
molded plastic power package See thermal considerations
on page 4
Features
Y
Y
Y
Y
Y
Output swing capability 50 V
PP
for V
CC
e
80
40 V
PP
for V
CC
e
70
30 V
PP
for V
CC
e
60
Pinout designed for easy PCB layout
1V to 7V input range
Stable with 0 pF 鈥?20 pF capacitive loads
Convenient TO-220 staggered lead style package
Applications
Y
Y
CRT driver for 1024 x 768 (Non-interlaced) and SVGA
display resolution color monitors
Pixel clock frequency up to 80 MHz
Schematic and Connection Diagrams
TL H 12327 鈥?2
Note
Tab is at GND
Top View
TL H 12327 鈥?1
FIGURE 1 Simplified Schematic Diagram (One Channel)
C
1995 National Semiconductor Corporation
TL H 12327
RRD-B30M115 Printed in U S A