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TDA8172PHILIPSN/a1284avaiTV VERTICAL DEFLECTION OUTPUT CIRCUIT
TDA8172. |TDA8172STN/a87avaiTV VERTICAL DEFLECTION OUTPUT CIRCUIT


TDA8172 ,TV VERTICAL DEFLECTION OUTPUT CIRCUITTDA8172TV VERTICAL DEFLECTION OUTPUT CIRCUIT
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TDA8172-TDA8172.
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
October 2003 1/7
TDA8172

TV VERTICAL DEFLECTION OUTPUT CIRCUIT
FEATURES
Power Amplifier Flyback Generator Thermal Protection
DESCRIPTION

The TDA8172 is a monolithic integrated circuit in
HeptawattTM package. It is a high efficiency power
booster for direct driving of vertical windings of TV
yokes. It is intended for use in color and black &
white television as well as in monitors and
displays.
PIN CONNECTION (top view)
BLOCK DIAGRAM

Figure 1. Measurement of I1, I2, I6
S1: (a) I2 and I6 ; (b) I1
Figure 2. Measurement of V5H
Figure 3. Measurement of V3L, V5L

S: (a) V3L ; (b) V5L
Figure 4. Measurement of V5

MOUNTING INSTRUCTIONSThe 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 ; no electrical
isolation is needed between the two surfaces since the tab is connected to Pin 4 which is ground.
Figure 6. Mounting examples

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