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National Semiconductor Electronic Components Datasheet

LM2429 Datasheet

Monolithic Triple Channel 15 MHz DTV Driver

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LM2429 pdf
October 2004
LM2429
Monolithic Triple Channel 15 MHz DTV Driver
General Description
The LM2429 is an integrated 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 −51 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.
Features
n 0V to 5V input range
n Greater than 130VPP output swing capability
n Stable with 0–20 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.
Connection Diagram
Schematic Diagram
Note: Tab is at GND
Top View
Order Number LM2429
20073102
FIGURE 1. Simplified Connection and Pinout Diagram
20073101
FIGURE 2. Simplified Schematic Diagram
(One Channel)
© 2004 National Semiconductor Corporation DS200731
www.national.com


National Semiconductor Electronic Components Datasheet

LM2429 Datasheet

Monolithic Triple Channel 15 MHz DTV Driver

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LM2429 pdf
Absolute Maximum Ratings (Notes 1,
3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
Bias Voltage (VBB)
Input Voltage (VIN)
Storage Temperature Range (TSTG)
Lead Temperature
(Soldering, <10 sec.)
ESD Tolerance,
Human Body Model
Machine Model
Junction Temperature
θJC (typ)
+200V
+15V
-0.5V to VBB +0.5V
−65˚C to +150˚C
300˚C
2kV
200V
150˚C
2.9˚C/W
Operating Ranges (Note 2)
VCC
VBB
VIN
VOUT
Case Temperature
+130V to +180V
+7V to +13V
+0V to +4V
+15V to +175V
Refer to Figure 11
Do not operate the part without a heat sink.
Electrical Characteristics
(See Figure 3 for Test Circuit) Unless otherwise noted: VCC = +180V, VBB = +8V, CL = 8pF, TC = 50˚C. DC Tests: VIN =
2.5VDC. AC Tests: Output = 130VPP (35V - 165V) at 1MHz.
Symbol
Parameter
Conditions
LM2429
Min Typical Max
Units
ICC Supply Current
All Three Channels, No Input Signal,
No Output Load
16 30 mA
IBB
VOUT, 1
VOUT, 2
AV
AV
LE
Bias Current
DC Output Voltage
DC Output Voltage
DC Voltage Gain
Gain Matching
Linearity Error
All Three Channels
No AC Input Signal, VIN = 2.5VDC
No AC Input Signal, VIN = 1.2VDC
No AC Input Signal
(Note 4), No AC Input Signal
(Notes 4, 5), No AC Input Signal
12 17 mA
100 105 110 VDC
163 168 173 VDC
-48 -51 -54
1.0 dB
8%
tR Rise Time
tF Fall Time
OS Overshoot
(Note 6), 10% to 90%
(Note 6), 90% to 10%
(Note 6)
26 ns
30 ns
5%
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Note 2: Operating ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and
test conditions, see the Electrical Characteristics. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may change when the device is not operated under the listed test
conditions.
Note 3: All voltages are measured with respect to GND, unless otherwise specified.
Note 4: Calculated value from Voltage Gain test on each channel.
Note 5: Linearity Error is the variation in DC gain from VIN = 1.1V to VIN = 3.8V.
Note 6: Input from signal generator: tr, tf < 1 ns.
www.national.com
2


Part Number LM2429
Description Monolithic Triple Channel 15 MHz DTV Driver
Maker National Semiconductor
Total Page 12 Pages
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