TDA8175
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
.
.
.
.
.
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.
PIN CONNECTIONS
7
6
5
4
3
2
1
INPUT
OUTPUT STAGE SUPPLY
OUTPUT
GROUND
FLYBACK GENERATOR
SUPPLY VOLTAGE
INVERTING INPUT
HEPTAWATT
(Plastic Package)
ORDER CODE :
TDA8175
Tab connecte dto Pin 4
BLOCK DIAGRAM
1000
µ
F
35V
+V
S
0.1
µ
F
1N4001
35V
220
µ
F
6
3
Flyback
Generator
2
Variable Gain
Amplifier
1
Power
Amplifier
5
1.5Ω
Thermal
Protection
7
Variable Gain
Amplifier
0.1
µ
F
200Ω
YOKE
15kΩ
22kΩ
4
8.2k
Ω
1000
µ
F
16V
2Ω
8175-02.EPS
September 1993
1/3
8175-01.EPS
TDA8175
ABSOLUTE MAXIMUM RATINGS
Symbol
V
S
V
5
, V
6
V
3
V
1
, V
7
I
O
I
O
Supply Voltage (PIn 2)
Flyback Peak Voltage
Voltage at PIn 3
Amplifier Input Voltage
Output Peak Current (non-repetitive, t = 2ms)
Output Peak Current at :
f = 50 or 60Hz, t
≤
10µs
f = 50 or 60Hz, t > 10µs
Pin 3 DC Current at V5 < V2
Pin 3 Peak-to-peak Flyback Current at f = 50 or 60Hz, t
fly
≤
1.5ms
Total Power Dissipation at T
case
= 70 C
Storage and Junction Temperature
o
Parameter
Value
35
60
+V
S
+V
S
2.5
3
2
100
3
20
-40, +150
Unit
V
V
A
A
A
mA
A
W
o
8175-01.TBL
8175-03.TBL
8175-02.TBL
I
3
I
3
P
tot
T
j
, T
stg
C
THERMAL DATA
Symbol
R
th (j-c)
Parameter
Junction-case Thermal Resistance
Max.
Value
3
Unit
o
C/W
ELECTRICAL CHARACTERISTICS
(V
S
= 35V, T
amb
= 25
o
C unless otherwise specified)
Symbol
I
2
I
6
I
1
V
3
V
5
V
5
V
5
V
O
G
V
O
V
7
R
7
T
j
Parameter
Pin 2 Quiescent Current
Pin 6 Quiescent Current
Amplifier Input Bias Current
Pin 3 Saturation to GND
Quiescent Output Voltage
Output Saturation Voltage to GND
Output Saturation Voltage to Supply
Ramp Amplitude versus Voltage Supply
AC Gain
DC Output Voltage Accuracy
Internal Bias
Input Resistance
Junction Temperature for Thermal Shutdown
V
1
= 1V
I
3
= 20mA
V
S
= 35V, R
a
= 39kΩ
I
5
= 1.2A
I
5
= 0.7A
-I
5
= 1.2A
-I
5
= 0.7A
22V < V
S
< 30V
V
S
= 26V
0.54
Test Conditions
Min.
Typ.
18
16
-0.1
1
19
1
0.7
1.6
1.3
4
0.61
8
2.7
50
140
0.67
1.4
1
2.2
1.8
Max.
36
36
-1
1.5
Unit
mA
mA
µA
V
V
V
V
V
V
%/V
V
%
V
kΩ
o
C
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 functionallows perfect compensationof height
variations caused by changes in brightness.
2/3
TDA8175
PACKAGE MECHANICAL DATA :9
PINS - PLASTIC HEPTAWATT
L
E
L1
M1
A
C
D1
L2
L5
L3
G1
H3
Dia.
G2
G
M
D
L6
Dimensions
A
C
D
D1
E
F
F1
G
G1
G2
H2
H3
L
L1
L2
L3
L5
L6
L7
M
M1
Dia.
Min.
Millimeters
Typ.
H2
L7
2.4
1.2
0.35
0.6
2.41
4.91
7.49
10.05
16.97
14.92
21.54
22.62
2.6
15.1
6
2.8
5.08
3.65
2.54
5.08
7.62
Max.
4.8
1.37
2.8
1.35
0.55
08
0.9
2.67
5.21
7.8
10.4
10.4
Min.
Inches
Typ.
0.094
0.047
0.014
0.024
0.095
0.193
0.295
0.396
0.668
0.587
0.848
0.891
0.100
0.200
0.300
Max.
0.189
0.054
0.110
0.053
0.022
0.031
0.035
0.105
0.205
0.307
0.409
0.409
3
15.8
6.6
0.102
0.594
0.236
0.110
0.200
0.118
0.622
0.260
HEPTV.TBL
3.85
0.144
0.152
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 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.
2
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3/3
PM-HEPTV.EPS
F1
F
Analog electronics
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