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參數(shù)資料
| 型號： | CVA2422 |
| 廠商： | CALOGIC LLC |
| 英文描述： | Low Cost Triple CRT Driver |
| 中文描述： | 低成本三顯像管驅(qū)動 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 53K |
| 代理商： | CVA2422 |
CVA2422TL
APPLICATION INFORMATION
The CVA2422TL is a high voltage triple CRT driver suitable for
VGA, Super VGA, IBM 8514, 1280 x 1024 and 1024 x 768
non-interlaced display applications. The CVA2422TL features
80V operation. The part is housed in the industry standard 11
lead TO-220 molded power package. The heat sink is floating
and may be grounded for ease of manufacturing and RFI
shielding.
Thermal Considerations
The transfer characteristics of the amplifier are shown in
Figure 4. Since this is a class A input stage, power supply
current
increases
as
the
input
signal
increases
and
consequently power dissipation also increases.
The CVA2422TL cannot be used without heat sinking.
Figure
2 shows the power dissipated in each channel over the
operating voltage range of the device. Under white screen
conditions, i.e.:
20V output, dissipation increases to 16W
total. The CVA2422TL case temperature must be maintained
below +90
oC. If the maximum expected ambient temperature
is +50
oC, then a heat sink is needed with thermal resistance
equal to or less than:
Rth
= (
90
50oC)
16W
= 2.5oC/W
The CVA2422TL maximum load is 600
to ground or V+.
The output of CVA2422TL is not short circuit proof.
Any
resistance to V
+ or Ground should be > 600.
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
FIGURE 4. CVA2422TL DC Characteristics
INPUT VOLTAGE
OUTPUT
VOLTAGE
(VOLTS)
0
60
90
35
7
POWER
DISSIPATION
(WATTS)
14
6
2
50
80
40
70
30
20
10
3
4
2
1
5
100
110
6
VOLTAGE
POWER
1G-26
CORPORATION
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