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PDF STV9302B Data sheet ( Hoja de datos )
| Número de pieza | STV9302B | |
| Descripción | Vertical Deflection Booster | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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® STV9302B
Vertical Deflection Booster
for 2-APP TV (50-60 Hz) Applications with 70-V Flyback Generator
Main Features
DATASHEET
■ Power Amplifier
■ Flyback Generator
■ Output Current up to 2 App
■ Thermal Protection
HEPTAWATT
(Plastic Package)
ORDER CODE: STV9302B
Description
The STV9302B is a vertical deflection booster
designed for TV (50-60 Hz) applications.
This device, supplied with up to 35 V, provides up to
2 App output current to drive the vertical deflection
yoke.
The internal flyback generator delivers flyback
voltages up to 70 V.
Tab connected
to pin 4
7
6
5
4
3
2
1
Input (Non Inverting)
Output Stage Supply
Output
Ground Or Negative Supply
Flyback Generator
Supply Voltage
Input (Inverting)
Output Stage
Supply
6
Flyback Supply
Generator Voltage
32
Non-Inverting 7
Input
Inverting
Input 1
+
Power
Amplifier
-
Flyback
Generator
Thermal
Protection
STV9302B
4
Ground or Negative Supply
5 Output
February 2005
Revision 0.1
ADCS No. 7811475
STMicroelectronics Confidential
1/15
Free Datasheet http://www.Datasheet4U.com
1 page  
STV9302B
4 Application Hints
Application Hints
The yoke can be coupled either in AC or DC.
4.1 DC-coupled Application
When DC coupled (see Figure 4), the display vertical position can be adjusted with input bias. On
the other hand, 2 supply sources (VS and -VEE) are required.
Figure 4: DC-coupled Application
470µF
Vref
Vertical Position
Adjustment
VM R3
Vm
0.1µF
CF (47 to 100µF)
+Vs Output
Voltage
6
Power
Amplifier
7+
1-
32
Flyback
Generator
Output
Current
Ip
Thermal
Safety
5
1.5Ω Rd(*)
Yoke
Ly
-VEE
4
470µF
0.1µF
R2
(*) recommended:
5----0L----µy---s- < Rd < -2---0L----µy---s-
R1
4.1.1 Application Hints
For calculations, treat the IC as an op-amp, where the feedback loop maintains V1 = V7.
4.1.1.1 Centering
Display will be centered (null mean current in yoke) when voltage on pin 7 is (R1 is negligible):
V7
=
V-----M------+-----V----m----
2
×
⎛
⎜
⎝
R-----2---R--+--2---R----3--⎠⎟⎞
STMicroelectronics Confidential
5/15
Free Datasheet http://www.Datasheet4U.com
5 Page 
STV9302B
Mounting Instructions
5 Mounting Instructions
The power dissipated in the circuit is removed by adding an external heatsink. With the
HEPTAWATT™ package, the heatsink is simply attached with a screw or a compression spring
(clip).
A layer of silicon grease inserted between heatsink and package optimizes thermal contact. In DC-
coupled applications we recommend to use a silicone tape between the device tab and the heatsink
to electrically isolate the tab.
Figure 10: Mounting Examples
STMicroelectronics Confidential 11/15
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet STV9302B.PDF ] | |
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