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LM2459 Datasheet

  • LM2459

  • National Semiconductor [Monolithic Single Channel 15 MHz DT...

  • NSC

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LM2459 Monolithic Single Channel 15 MHz DTV CRT Driver
May 2004
LM2459
Monolithic Single Channel 15 MHz DTV CRT Driver
General Description
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 鈭?1 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 a staggered 7-lead TO-220 molded
plastic power package designed specifically to meet high
voltage spacing requirements. See Thermal Considerations
section.
Features
15MHz bandwith at 130V
PP
output swing
0V to 4V input range
Greater than 130V
PP
output swing capability
Stable with 0鈥?0 pF capacitive loads and inductive
peaking networks
n
Transient response improvement option via pin 6 (EM)
n
n
n
n
Applications
n
AC coupled DTV applications using the 480p format as
well as standard NTSC and PAL formats.
Connection Diagram
Schematic Diagram
20067802
Note:
Tab is at GND
Top View
Order Number LM2459TE
FIGURE 1. Simplified Connection and Pinout Diagram
FIGURE 2. Simplified Schematic Diagram
20067801
漏 2004 National Semiconductor Corporation
DS200678
www.national.com

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