TV VERTICALDEFLECTION OUTPUT CIRCUIT
.
POWERAMPLIFIER
.
FLYBACKGENERATOR
.
AUTOMATICPUMPING COMPENSATION
.
THERMAL PROTECTION
.
REFERENCEVOLTAGE
DESCRIPTION
The TDA8175 is a monolithic integrated circuit in
HEPTAWATTpackage.It isahighefficiencypower
boosterfor direct driving of verticalwindings of TV
yokes. It is intended for use in Color and B & W
televisionsets as wellas in monitorsanddisplays.
PINCONNECTIONS
TDA8175
HEPTAWATT
(Plastic Package)
ORDER CODE : TDA8175
BLOCK DIAGRAM
Tab connectedto Pin 4
1000µF
35V
Variable Gain
Amplifier
1
7
Variable Gain
Amplifier
1N4001
Amplifier
7
6
5
4
3
2
1
Power
INPUT
OUTPUT STAGE SUPPLY
OUTPUT
GROUND
FLYBACK GENERATOR
SUPPLY VOLTAGE
INVERTING INPUT
8175-01.EPS
+V
15kΩ
5
0.1µF
S
1.5Ω
200Ω
8.2kΩ
YOKE
22kΩ
1000µF
16V
220µF0.1µF
35V
362
Flyback
Generator
Thermal
Protection
4
September 1993
2
Ω
8175-02.EPS
1/3
TDA8175
ABSOLUTEMAXIMUMRATINGS
Symbol Parameter Value Unit
V
V
5,V6
V
V1,V7Amplifier Input Voltage +V
I
O
I
O
I
3
I
3
P
tot
,T
T
j
THERMALDATA
Symbol Parameter Value Unit
R
th (j-c)
Supply Voltage (PIn 2) 35 V
S
Flyback Peak Voltage 60 V
Voltage at PIn 3 +V
3
Output Peak Current (non-repetitive, t = 2ms) 2.5 A
Output Peak Current at :
f = 50 or 60Hz, t ≤ 10µs
f = 50 or 60Hz, t > 10µs
Pin 3 DC Current at V5 < V2 100 mA
Pin 3 Peak-to-peak Flyback Current at f = 50 or 60Hz, t
Total Power Dissipation at T
Storage and Junction Temperature -40, +150
stg
=70oC20W
case
≤ 1.5ms 3 A
fly
Junction-case Thermal Resistance Max. 3
S
S
3
2
o
C/W
A
A
o
C
8175-01.TBL
8175-02.TBL
ELECTRICAL CHARACTERISTICS (VS= 35V,T
=25oC unlessotherwisespecified)
amb
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
2
I
6
I
1
V
V
V
V
V
G AC Gain V
V
V
R
T
THERMALPROTECTION
The thermalprotectioncircuitinterveneswhenthe
die temperaturesreaches150
output power device.
Pin 2Quiescent Current 18 36 mA
Pin 6Quiescent Current 16 36 mA
Amplifier Input Bias Current V1= 1V -0.1 -1 µA
Pin 3Saturation to GND I3= 20mA 1 1.5 V
3
Quiescent Output Voltage VS= 35V, Ra= 39kΩ 19 V
5
Output Saturation Voltage to GND I5= 1.2A
5
Output Saturation Voltage to Supply -I5= 1.2A
5
Ramp Amplitude versus Voltage Supply 22V < VS< 30V 4 %/V
O
DC Output Voltage Accuracy 8 %
O
Internal Bias 2.7 V
7
Input Resistance 50 kΩ
7
Junction Temperaturefor Thermal Shutdown 140
j
= 0.7A
I
5
= 0.7A
-I
5
= 26V 0.54 0.61 0.67 V
S
1
0.7
1.6
1.3
PUMPINGCOMPENSATION
o
C and turns-off the
Thedeviceincorporatesa special preampliflier,the
gainofwhichvarieswithchangesin supplyvoltage.
Thisfunctionallowsperfectcompensationofheight
1.41V
2.2
1.8VV
variationscausedby changesin brightness.
V
o
C
8175-03.TBL
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PACKAGEMECHANICALDATA:9 PINS - PLASTICHEPTAWATT
TDA8175
Dimensions
L
L1
A
C
H3
Dia.
L7
D1
L6
D
L2
L3L5
F1
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
E
MM1
G
G1
G2
F
H2
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
Information furnished is believed to be accurateand reliable.However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of suchinformation nor for any infringement of patents orother rights of third parties whichmay result
from itsuse. Nolicence is granted byimplication or otherwise underany patent or patentrightsof SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSONMicroelectronics products arenot authorized for use as criticalcomponents in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
PM-HEPTV.EPS
HEPTV.TBL
1994 SGS-THOMSON Microelectronics - All RightsReserved
Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys alicenseunder the Philips
2
I
C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
2
the I
C Standard Specifications as defined by Philips.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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