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PDF LM2423 Data sheet ( Hoja de datos )
| Número de pieza | LM2423 | |
| Descripción | 220V Monolithic Triple Channel 15 MHz CRT DTV Driver | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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July 2004
LM2423
220V Monolithic Triple Channel 15 MHz CRT DTV Driver
General Description
The LM2423 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 −54 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 Consider-
ations section.
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 coupled DTV applications using the 480p format as
well as standard NTSC and PAL formats.
Features
n 15 MHz bandwidth at 130VPP output swing
Connection Diagram
Schematic Diagram
20114801
FIGURE 1. Top View
Order Number LM2423TE
See NS Package Number TE11B NOPB
Available only with lead free plating
20114802
FIGURE 2. Simplified Schematic Diagram
(One Channel)
© 2004 National Semiconductor Corporation DS201148
www.national.com
1 page  
Typical Performance Characteristics (VCC = +220VDC, VBB = +12VDC, CL = 10 pF, VOUT = 130VPP
(60V – 190V), TC = 60˚C, Test Circuit — Figure 3 unless otherwise specified)
201148010
FIGURE 10. Power Dissipation vs Frequency
201148011
FIGURE 11. Safe Operating Area
201148012
FIGURE 12. LM2423 Cathode Response
5 www.national.com
5 Page 
Physical Dimensions inches (millimeters) unless otherwise noted
NOTE: Available only with lead free plating
NS Package Number TE11B
Order Number LM2423TE NOPB
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
BANNED SUBSTANCE COMPLIANCE
National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products
Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification
(CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2.
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Support Center
Email: [email protected]
Tel: 1-800-272-9959
www.national.com
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Fax: +49 (0) 180-530 85 86
Email: [email protected]
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English Tel: +44 (0) 870 24 0 2171
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National Semiconductor
Japan Customer Support Center
Fax: 81-3-5639-7507
Email: [email protected]
Tel: 81-3-5639-7560
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LM2423.PDF ] | |
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