TDA8179FS
TV VERTICAL DEFLECTION BOOSTER
May 1993
Output Stage Supply
Output
GND
Supply Voltage
Inverting Input
Tab connected to pin 4
7
6
5
4
3
2
1
Non-inverting Input
Flyback Supply Voltage
8179F-01.EPS
PIN CONNECTIONS
HEPTAWATT
(Plastic Package)
ORDER CODE : TDA8179FS
.
POWER AMPLIFIER
.
FLYBACK SUPPLY VOLTAGE SEPARATED
.
THERMAL PROTECTION
DESCRIPTION
Designed for monitors and high performance TVs,
the TDA8179FS vertical deflection booster is able
to work with a flyback voltage more than the double
of V
S
.
The TDA8179FS operates with supplies up to 42V,
flyback output up to 92V and provides up to 2App
output current to drive to yoke.
The TDA8179FS is offered in HEPTAWATT pack-
age.
1/6
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage (pin 2)
50
V
V
F
Flyback Supply Voltage
100
V
V
F
- V
S
Difference between Flyback Supply Voltage and Supply Voltage
50
V
V
1
, V
7
Amplifier Input Voltage
+ V
S
I
O
Output Peak Current
Non-repetitive, t = 2ms
f = 50 or 60Hz, t
10
s
f = 50 or 60Hz, t > 10
s
2
2
1.8
A
I
3
Pin 3 Peak Flyback Current at f = 50 or 60Hz, t
fly
1.5ms
1.8
A
P
to t
Total Power Dissipation at T
C
= 70
o
C
20
W
T
stg
Storage Temperature
- 40, + 150
o
C
T
j
Junction Temperature
0, +150
o
C
8179F-01.TBL
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th (j-c)
Junction-case Thermal Resistance
Max.
3
o
C/W
8179F-02.TBL
ELECTRICAL CHARACTERISTICS
(V
7
= 2.2V, V
S
= 42V, T
A
= 25
o
C, unless otherwise specified)
(refer to the test circuits - see Figure 1 next page)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
S
Operating Supply Voltage Range
10
42
V
I
2
Pin 2 Quiescent Current
I
3
= 0
I
5
= 0
10
20
mA
I
6
Pin 6 Quiescent Current
I
3
= 0
I
5
= 0
20
40
mA
I
1
Amplifier Bias Current
V
1
= 1V
- 0.2
- 1
A
V
5
Quiescent Output Voltage
V
S
= 42V
R
a
= 3.9k
V
S
= 35V
R
a
= 5.6k
23.4
17
24.2
17.8
25
18.5
V
V
5L
Output Saturation Voltage to GND
I
5
= 1A
1.2
1.5
V
V
5H
Output Saturation Voltage to Supply
- I
5
= 1A
2.2
2.6
V
V
D5 - 6
Diode Forward Voltage between Pins 5-6
I
D
= 1A
1.5
3
V
V
D3 - 6
Diode Forward Voltage between Pins 3-6
I
D
= 1A
1.5
3
V
R
1
Input Resistance
200
k
T
j
Junction Temperature for Thermal
Shutdown
140
o
C
8179F-03.TBL
TDA8179FS
3/6
FIGURE 1 : DC Test Circuits
2
6
5
1
7
4
+ V
S
I
6
I
2
I
1
1V
S1
a
b
V
7
10k
TDA8179FS
8179F-04.EPS
S1 : (a) I
2
and I
6
, (b) I
1
Figure 1a : Measurement of I
1
, I
2
, I
6
2
6
5
1
4
+ V
S
1V
V
5H
5
- I
7
V
7
TDA8179FS
8179F-05.EPS
Figure 1b : Measurement of V
5H
2
6
5
1
4
+ V
S
V
Re
39k
7
V
7
5
TDA8179FS
8179F-07.EPS
Figure 1d : Measurement of V
5
2
6
5
1
4
+ V
S
3
3V
V
5L
5
I
7
V
7
TDA8179FS
8179F-06.EPS
Figure 1c : Measurement of V
5L
TDA8179FS
4/6
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