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TDA1675 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
TDA1675 VERTICAL DEFLECTION CIRCUIT ST-Microelectronics
STMicroelectronics ST-Microelectronics
TDA1675 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
TDA1675A
when a flyback pulse has been generated. If the
flyback pulse is absent (short cirucit or open cirucit
of the yoke), the blanking output remains high so
allowing the CRT protection.
Pin 13 is an open collector output where the
blanking pulse is available.
Voltage regulator
The main supply voltage VS, is lowered and
regulated internally to allow the required reference
voltages for all the above described blocks.
Pin 14 is the main supply voltage input VS
(positive).
Pin 8 is the GND pin or the negative input of VS
Figure 7 : Output Saturation Voltage to Ground
vs. Peak Output Current
V1L (V)
1.5
VS = 35V
1
0.5
IY (App)
0
0.5
1
1.5
2
Figure 8 : Output Saturation Voltage to Supply
versus Output Peak Current
V1H (V)
2
VS = 35V
1.5
1
IY (App)
0.5
0
0.5
1
1.5
2
Figure 9 : Maximum allowable Power Dissipation
vs. Ambient Temperature
Ptot (W)
32
24
R
R
th
R
= 4˚C/W th
= 2˚C/W
16
th = 8˚C/W
8
0
-50
Tamb (˚C)
0
50
100
150
MOUNTING INSTRUCTIONS
The power dissipated in the circuit must be
removed by adding an external heatsink. Thanks
to the MULTIWATT ® package attaching the
heatsink is very simple, a screw or a compression
Figure 10 : Mounting Examples
spring (clip) being sufficient. Between the heatsink
and the package, it is better to insert a layer of
silicon grease, to optimize the thermal contact; no
electrical isolation is needed between the two
surfaces.
10/11
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