TDA1175.PDF

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LOW-NOISE VERTICAL DEFLECTION SYSTEM
TDA1175
LOW-NOISE VERTICAL DEFLECTION SYSTEM
. COMPLETE VERTICAL DEFLECTION
SYSTEM
. SUITABLE FOR HIGH DEFINITION
MONITORS
. ESD PROTECTED
DESCRIPTION
The TDA1175 is a monolithic integrated circuit in
FINDIP plastic package. It is intended for use in
black and white and colour TV receivers. Low-noise
makes this device particularly suitable for use in
monitors. The functions incorporated are : synchro-
nization circuit, oscillator and ramp generator, high
power gain amplifier, flyback generator, voltage
regulator.
FINDIP
(Plastic Package)
ORDER CODE : TDA1175
PIN CONNECTIONS
RAMP OUTPUT
1
12
RAMP GENERATOR
SUPPLY VOLTAGE
2
11
COMPENSATION
FLYBACK
3
10
AMP. INPUT
GROUND
GROU ND
POWER AMPLIFLIER OUTPUT
POWER AMPLIFLIER
SUPPLY VOLTAGE
4
9
OSCILLATOR
5
8
SYNC. INPUT
REGULATED
VOLTAGE
6
7
HEIGHT ADJUSTMENT
September 1993
1/8
. LOW NOISE
11046396.002.png
TDA1175
BLOCK DIAGRAM
+V S
C 4
D A
FREQ
6
2
3
5
P 1
R H
C 9
9
OSCILLATOR
VOLTAGE
REGULATOR
FLYBACK
GENERATOR
POWER
AMPLIF IER
4
C
1
R
G
YOKE
C 8
SYNC
8
SYNC
CIRCUIT
RAMP
GENERATOR
BUFFER
STAGE
PREAMPLIFI ER
11
C 5
C
7
7
12
1
10
R E
R D
TABS
LINEARITY
C
2
P 2
R A
P
3
R
B
R
C
HEIGHT
C
3
C 6
R F
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V s
Supply Voltage at Pin 2
35
V
V 4 ,V 5
Flyback Peak Voltage
60
V
V 10
Power Amplifier Input Voltage
+ 10
– 0.5
V
V
I o
Output Peak Current (non repetitive) at t = 2ms
2
A
I o
Output Peak Current at f = 50Hz, t 3
10 m s
2.5
A
I o
Output Peak Current at f = 50Hz, t > 10
m
s
1.5
A
I 3
Pin 3 DC Current at V 4 <V 2
100
mA
I 3
Pin 3 Peak to Peak Flyback Current for f = 50Hz, t fly
3
1.5ms
1.8
A
I 8
Pin 8 Current
± 20
mA
P to t
Power Dissipation : at T ta b =90
C
at T amb =80
°
5
1
W
W
°
C (free air)
T stg ,T j
Storage and Junction Temperature
– 40, + 150
C
THERMAL DATA
Symbol
Parameter
Value
Unit
R th (j-tab)
Thermal Resistance Junction-tab
Max.
12
°
C/W
R th (j-amb)
Thermal Resistance Junction-ambient
Max.
70
°
C/W(1)
(1) Obtained with tabs soldered to printed circuit with minimized copper area.
2/8
°
11046396.003.png
TDA1175
ELECTRICAL CHARACTERISTICS (T amb =25
C, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit Fig.
DC CHARACTERISTICS (Refer to the test circuits, V S = 35V)
I 2
Pin 2 Quiescent Current
I 3 =0
7
14
mA 1b
I 5
Pin 5 Quiescent Current
I 4 =0
8
17
mA 1b
–I 9
Oscillator Bias Current
V 9 = 1V
0.1
1
m
Aa
–I 10
Amplifier Input Bias Current
V 10 =1V
1
10
m
Ab
–I 12
Ramp Generator Bias Current
V 12 = 0
0.02 0.3
m
Aa
–I 12
Ramp Generator Current
I 7 =20
m
A, V 12 = 0
18.5 20 21.5
m
Ab
D
I 12
I 12
Ramp Generator Non-linearity
D
V 12 = 0 to 12V, I 7 =20
m
A
0.2
1
%
1b
V s
Supply Voltage Range
10
35
V
V 1
Pin 1 Saturation Voltage to Ground I 1 = 1mA
1
1.4
V
V 3
Pin 3 Saturation Voltage to Ground I 3 = 10mA
1.5
2.5
V
1a
V 4
Qiuescent output Voltage
V s = 10V, R1 = 1k
W
,R2=1k
W
4.1
8.2
4.4
8.8
4.7
9.4
V
V
1a
1a
V s = 35V, R1 = 3k
W
,R2=1k
W
V 4L
Output Saturation Voltage to
Ground
–I 4 = 0.1A
–I 4 = 0.8A
0.9
1.8
1.2
2.2
V
v
1c
1c
V 4H
Output Saturation Voltage to Supply I 4 = 0.1A
I 4 = 0.8A
1.4
2.8
2.1
3.1
V
V
1d
1d
V 6
Regulated Voltage at Pin 6
6.5
6.7
6.9
V
1b
V 7
Regulated Voltage at Pin 7
I 7 =20
m
A
6.6
6.8
7
V
1b
D
V 6 |
, |
D
V 7 |
Regulated Voltage Drift with Supply
Voltage
D
Vs = 10 to 35V
1
2
mV/V 1b
D
V S
D
V S
V 10
Amplifier Input Reference Voltage
V 8
3
0.4V
2.20 2.27 2.35
V
AC CHARACTERISTICS (Refer to the AC test circuit, V S = 22V, f = 50Hz)
I s
Supply Current
I y =1A PP
140
mA
2
I 8
Sync. Input Current (positive or
negative)
0.5
2
mA
2
V4
Flyback Voltage
I y =1A PP
45
V
2
t fly
Flyback Time
I y =1A PP
0.7
ms
2
V ON
Peak to Peak Output Noise
Pin 9 Connected to GND
18
30 mVpp 2
f o
Free Running Frequency
(P1 + R1) = 300k
W
36 43.5
Hz
2
C9 = 0.1
m
F
f OPER
Operating Frequency Range
10
120
Hz
2
D
f
Synchronization Range
I 8 = 0.5mA, C9 = 0.1
m
F
14
Hz
2
(P1+R1) = 300k
W
D
f
Frequency Drift with Supply Voltage V s = 10 to 35V
0.005
Hz/V
2
D
V S
|
D
f|
Frequency Drift with tab
Temperature
T tab = 40 to 120
°
C
0.01
Hz/
°
C2
D
T ab
3/8
°
|
11046396.004.png
TDA1175
Figure 1 : DC Test Circuits
Figure 1a
Figure 1b
+V
S
+V
I 2
I
S
V
3
3
I
5
3
2
5
2
5
8
TDA1175
4
9
TDA1175
10
9
I 8
7
12
10
R 1
6
12
7
TABS
TABS
1k
W
-I
9
-I 12
V
4
V 6
-I 12
V
-I
10
7
1V
1V
8V
R
2
1V
100k
W
Figure 1c
Figure 1d
+V
S
+V
S
2
5
I
4
2
5
V
4H
9
TDA1175
4
9
TDA1175
4
10
TABS
10
TABS
V
4
4L
4V
1V
4/8
I
11046396.005.png
TDA1175
Figure 2 : AC Test and Application Circuit for Large Screen B/W TV Set 10 W /20mH/1A PP
V=22V
S
0.1
m
F
1N 4001
470
m
F
100
m
F
TABS
0.1 m F
5
2
3.3
W
3
4
220k
W
100pF
5.6k
W
Yoke
Ry = 10 W
Ly = 20mH
560
W
*
11
SYNC.
INPUT
470pF
1000
m
F
8
TDA1175
5.6k
W
10
10
m
F
22k
W
1
9
100k
W
P1
100k W
6
7
12
R1
47k W
1.8k W
220k
W
100k W
0.1 m F
C9
0.1 m F
120k
W
910k
W
1 W
0.1 m F
* on appl ication onl y
Figure 3 : Typical Application Circuit for Small Screen 90 o CTV Set (R Y =15
W
,L Y = 30mH, I Y = 0.82A PP )
C1
0.1 m F
D1
1N4001
C5
470 m F
V = 26V
S
C4
100 m F
TABS
C10
0.1 m F
5
2
R8
3.3 W
3
4
R5
390k
W
C9
100pF
R11
5.6k
W
Yoke
Ry = 15 W
Ly = 30mH
C2 0.1 m F
11
C6
470pF
C12
1000 m F
f
= 50Hz
sync.
8
TDA1175
R10
R1
4.7k W
10
C11
10 m F
R6
18k W
5.6k W
1
9
P3
100k
P1
100k W
W
6
7
12
R2
R7
47k W
R9
1.5k W
150k
W
P2
100k W
R3
100k W
R4
680k W
C7
0.1 m F
R12
1 W
C3
0.15
C8
0.1 m F
m
F
5/8
11046396.001.png

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