TDA8146
EAST/WEST CORRECTION
FOR RECTANGULAR TV-TUBES
May 1993
.
LOW POWER DISSIPATION
.
PULSE WIDTH MODULATOR FOR SWITCH
MODE OPERATION
.
OUTPUT SINK CURRENT UP TO 800mA
.
OUTPUT SOURCE CURRENT UP TO 100mA
.
PARASITIC PARABOLA SUPPRESSION
DURING VERTICAL FLYBACK
.
VERTICAL CURRENT SENSE INPUTS
GROUND COMPATIBLE
.
PROGRAMMABLE PARABOLA CURRENT
GENERATOR FOR DIFFERENT TV-TUBES
.
EXTERNAL KEYSTONE ADJUSTMENT
DESCRIPTION
The TDA8146 is a monolithic integrated circuit in a
14 pin dual-in-line plastic package.
The TDA8146 is designed for use in the east-west
pin-cushion correction by driving a diode modulator
in TV and monitor applications.
Since the parabola current generator is program-
mable the device can operate with different CRTs.
DIP14
(Plastic Package)
ORDER CODE : TDA8146
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NOT USED
IV
IGND
V
IREF
GND
OUT
P4
P5
PAR
C
PW
Z
V
S
81
46
-
0
1
.
E
P
S
PIN CONNECTIONS
1/5
1
3
5
6
7
9
2
I
I
REF
14
13
11
10
2.2V
REF
4
8
12
6 0
A
8.2V
8
1
4
6
-0
2
.
EPS
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
I
7
Output Sink Current
800
mA
I
7
Output Source Current
100
mA
V
S
Supply Voltage
33
V
V
4
Vertical Flyback Input Voltage
0.3 to 60
V
V
10
Input Voltage at Pin 10
10 to V
S
V
V
9
Input Voltage at Pin 9
10 to 20
V
V
in
Input Voltage at all other Pins
0.3 to V
S
V
T
stg
Storage Temperature
40 to 150
C
T
j
Junction Temperature
0 to 150
C
81
46
-
0
1
.
T
B
L
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th (j-a)
Junction-ambient Thermal Resistance
Max.
80
C/W
81
46
-
0
2
.
T
B
L
ELECTRICAL CHARACTERISTICS
(refer to test circuit V
S
= 24V, T
j
= 25
o
C ; unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
S
Supply Voltage
15
24
29
V
I
S
Supply Current
V
out
= LOW
4
7
mA
V
5
Reference Voltage
8.2
V
V
7L
Saturation Voltage
I
O
= 800mA Sink
1.2
2
V
V
SAT
Diode Forward Voltage
I
O
= 800mA
1.1
1.7
V
V
7H
Saturation Voltage
I
O
= 100mA Source
0.8
1.25
V
I
11
Current Sink Pin 11
40
60
80
A
V
9
Zener Voltage
I
9
= 5mA
20
22
24
V
V
4T
Vertical Blanking Threshold Voltage
V
S
0.5
V
S
V
S
+ 0.5
V
I
4
Vertical Blanking Input Current
V
4
= 50V
25
50
100
A
V
2
Reference Voltage at Pin 2
R1 = R2 = 10K
1.3
V
V
3
Reference Voltage at Pin 3
1.3
V
V
PARO
Parabola Voltage at Pin 12
V
SE
= 0
9.7
V
V
C
Parabola Voltage at Pin 12
V
SE
= + 0.8V
7.05
V
81
46
-
0
3
.
T
B
L
TDA8146
2/5
ELECTRICAL CHARACTERISTICS (continued)
(refer to test circuit V
S
= 24V, T
j
= 25
o
C ; unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
K
A
Parabola Coefficient
K
A
=
VA
VB
0.25
K
C
Parabola Coefficient
K
C
=
VC
VB
, S4 + S5 open
1.75
K
5
Parabola Coefficient
K
5
=
VC5
VC
, S4 or S5 Closed
1.07
K
4
Parabola Coefficient
K
4
=
VC4
VC
, S4 + S5 Closed
1.17
K
S
Parabola Symmetry
K
S
=
VC
VD
0.94
1.0
1.06
K
F
Flyback Coefficient
K
F
=
VC
VD
, V4 = 15V
1.0
81
46
-
0
4
.
T
B
L
1
3
5
6
7
9
2
I
I
REF
14
13
11
10
2.2V
REF
4
8
12
60
A
8.2V
100k
10k
R2
R1
10k
V
SE
R
REF
S4
S5
V
V
V
V
8V
5k
24V
V
S
D1
8
1
4
6
-0
3
.
EP
S
TEST CIRCUIT
TDA8146
3/5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
S4
S5
18k
100
n
F
2
.
2nF
2.2k
Line Size
Adjustment
E-
W
C
o
r
r
e
c
t
i
o
n
47k
4.7k
1n
F
220
F
100nF
6
7
1.5k
V
S
HORIZONTAL
FLYBACK
3
2
5
4
1
3.3M
2.2M
820k
10k
1%
10k
1%
100k
15mH
KE
Y
S
T
O
NE
AD
J
U
ST
EM
N
T
VERTICAL
YOKE
1.6 V
PP
VERTICAL
FLYBACK
81
46
-
0
5
.
E
P
S
APPLICATION DIAGRAM
V C4
C5
V
C
V
V B
A
V
D
V
V F
9.6V
PAR
V
9V
8V
7V
during
flyback
0
-0.3V
-0.6V
-0.8V
+0.8V
V SE
PAR
V
8
1
4
6
-0
4
.
EP
S
PARABOLA CHARACTERISTICS
TDA8146
4/5
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 notice. 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 conforms to
the I
2
C Standard Specifications as defined by Philips.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
14
8
1
7
I
a1
L
B
e
D
Z
b
Z
e3
F
b1
E
P
M
-
D
I
P
1
4
.
EPS
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC DIP
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
a1
0.51
0.020
B
1.39
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
15.24
0.600
F
7.1
0.280
i
5.1
0.201
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
D
I
P1
4
.
T
B
L
TDA8146
5/5
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