TDA8175
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
September 1993
7
6
5
4
3
2
1
Tab connecte dto Pin 4
OUTPUT STAGE SUPPLY
OUTPUT
GROUND
FLYBACK GENERATOR
SUPPLY VOLTAGE
INVERTING INPUT
INPUT
8175-01.EPS
PIN CONNECTIONS
HEPTAWATT
(Plastic Package)
ORDER CODE : TDA8175
.
POWER AMPLIFIER
.
FLYBACK GENERATOR
.
AUTOMATIC PUMPING COMPENSATION
.
THERMAL PROTECTION
.
REFERENCE VOLTAGE
DESCRIPTION
The TDA8175 is a monolithic integrated circuit in
HEPTAWATT 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 B & W
television sets as well as in monitors and displays.
Flyback
Generator
Thermal
Protection
3
6
2
1
7
5
4
YOKE
+V
S
Variable Gain
Amplifier
Variable Gain
Amplifier
Power
Amplifier
1N4001
35V 220
F
0.1
F
1000
F
35V
1.5
0.1
F
200
22k
15k
1000
F
16V
2
8.2k
8175-02.EPS
BLOCK DIAGRAM
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THERMAL PROTECTION
The thermal protection circuit intervenes when the
die temperatures reaches 150
o
C and turns-off the
output power device.
PUMPING COMPENSATION
The device incorporates a special preampliflier, the
gain of which varies with changes in supply voltage.
This function allows perfect compensationof height
variations caused by changes in brightness.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage (PIn 2)
35
V
V
5
, V
6
Flyback Peak Voltage
60
V
V
3
Voltage at PIn 3
+V
S
V
1
, V
7
Amplifier Input Voltage
+V
S
I
O
Output Peak Current (non-repetitive, t = 2ms)
2.5
A
I
O
Output Peak Current at :
f = 50 or 60Hz, t
10
s
f = 50 or 60Hz, t > 10
s
3
2
A
A
I
3
Pin 3 DC Current at V5 < V2
100
mA
I
3
Pin 3 Peak-to-peak Flyback Current at f = 50 or 60Hz, t
fly
1.5ms
3
A
P
tot
Total Power Dissipation at T
case
= 70
o
C
20
W
T
j
, T
stg
Storage and Junction Temperature
-40, +150
o
C
8175-01.TBL
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th (j-c)
Junction-case Thermal Resistance
Max.
3
o
C/W
8175-02.TBL
ELECTRICAL CHARACTERISTICS (V
S
= 35V, T
amb
= 25
o
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
2
Pin 2 Quiescent Current
18
36
mA
I
6
Pin 6 Quiescent Current
16
36
mA
I
1
Amplifier Input Bias Current
V
1
= 1V
-0.1
-1
A
V
3
Pin 3 Saturation to GND
I
3
= 20mA
1
1.5
V
V
5
Quiescent Output Voltage
V
S
= 35V, R
a
= 39k
19
V
V
5
Output Saturation Voltage to GND
I
5
= 1.2A
I
5
= 0.7A
1
0.7
1.4
1
V
V
V
5
Output Saturation Voltage to Supply
-I
5
= 1.2A
-I
5
= 0.7A
1.6
1.3
2.2
1.8
V
V
V
O
Ramp Amplitude versus Voltage Supply
22V < V
S
< 30V
4
%/V
G
AC Gain
V
S
= 26V
0.54
0.61
0.67
V
V
O
DC Output Voltage Accuracy
8
%
V
7
Internal Bias
2.7
V
R
7
Input Resistance
50
k
T
j
Junction Temperature for Thermal Shutdown
140
o
C
8175-03.TBL
TDA8175
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L2
L3
L5
L7
L6
Dia.
A
C
D
E
D1
H3
H2
F
G
G1
G2
L1
L
MM
1
F1
PM-HEPTV.EPS
PACKAGE MECHANICAL DATA :9 PINS - PLASTIC HEPTAWATT
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
4.8
0.189
C
1.37
0.054
D
2.4
2.8
0.094
0.110
D1
1.2
1.35
0.047
0.053
E
0.35
0.55
0.014
0.022
F
0.6
08
0.024
0.031
F1
0.9
0.035
G
2.41
2.54
2.67
0.095
0.100
0.105
G1
4.91
5.08
5.21
0.193
0.200
0.205
G2
7.49
7.62
7.8
0.295
0.300
0.307
H2
10.4
0.409
H3
10.05
10.4
0.396
0.409
L
16.97
0.668
L1
14.92
0.587
L2
21.54
0.848
L3
22.62
0.891
L5
2.6
3
0.102
0.118
L6
15.1
15.8
0.594
0.622
L7
6
6.6
0.236
0.260
M
2.8
0.110
M1
5.08
0.200
Dia.
3.65
3.85
0.144
0.152
HEPTV.TBL
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without noti ce. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I
2
C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I
2
C Patent. Rights to use these components in a I
2
C system, is granted provided that the system confo rms to
the I
2
C Standard Specifications as defined by Philips.
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TDA8175
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