SGS Thomson Microelectronics TDA8170 Datasheet

TV VERTICALDEFLECTION OUTPUT CIRCUIT

The functionsincorporatedare :

.

POWERAMPLIFIER

.

FLYBACKGENERATOR

.

REFERENCE VOLTAGE

.

THERMALPROTECTION

DESCRIPTION

The TDA8170 is a monolithic integrated circuit in
HEPTAWATT
powerboosterfor directdrivingof verticalwindings
of TV yokes. It is intended for use in Colour and B
&W televisionreceiversaswell asin monitorsand
displays.

PIN CONNECTIONS

TM

package. It is a high efficiency

TDA8170

HEPTAWATT

(PlasticPackage)

ORDER CODE : TDA8170

Tab connected to Pin 4

BLOCKDIAGRAM

7
6
5
4
3
2
1

236

REFERENCE

VOLTAGE

1

7

TDA8170

POWER

AMPLIFIER

4

REFERENCEVOLTAGE AND NON-INVERTING INPUT
OUTPUT STAGE SUPPLY
OUTPUT
GROUND
FLYBACK GENERATOR
SUPPLY VOLTAGE
INVERTING INPUT

+V

S

FLYBACK

GENER ATOR

5

THERMAL

PROTEC TION

YOKE

8170-01.EPS

December 1997

8170-02.EPS

1/7

TDA8170

SCHEMATIC DIAGRAM

5

2

D4

C1

7

1

Q23

D1

R1

Z1

Q1 Q2

Q3

D2

Q25

Q4

Q5

R2

R12

Q24

Z2

R13

Q7

Q6

Q8

R3

Q26

R14

Q27

D3

R4

Q9

Q14

R7

C2

Q28

Q29

Q11

Q10 Q12

D5

D6 D7

R5

Q13

R6

Q15

D8

Q17

Q16

R8 R9

R10

Q18

Q20

R11

Q22

Q19

6

D9

Q21

3

2/7

R16

4

R19

R17

R18R15

8170-03.EPS

TDA8170

ABSOLUTE MAXIMUMRATINGS

Symbol Parameter Value Unit

V

V

5,V6

V

V1,V7Amplifier Input Voltage + Vs, – 0.5 V

P

T

stg,Tj

THERMAL DATA

Symbol Parameter Value Unit

R

th j–case

Supply Voltage (pin 2) 35 V

S

Flyback Peak Voltage 60 V
Voltage at Pin 3 + V

3

Output Peak Current (non repetitive, t = 2 msec) 2.5 A

I

o

Output Peak Current at f = 50 or 60 Hz, t ≤ 10 µsec 3 A

I

o

Output Peak Current at f = 50 or 60 Hz, t > 10 µsec 2 A

I

o

Pin 3 DC Current at V5<V

I

3

Pin 3 Peak to Peak Flyback Current at f= 50 or 60 Hz, t

I

3

Total Power Dissipation at T

tot

2

≤1.5msec 3 A

fly

=90°C20W

case

s

100 mA

Storage and Junction Temperature – 40, +150

Thermal Resistance Junction-case Max. 3 °C/W

C

°

8170-01.TBL

8170-02.TBL

ELECTRICAL CHARACTERISTICS

(refer to the test circuits, V

= 35V, T

S

Symbol Parameter Test Conditions Min. Typ. Max. Unit Fig.

Pin 2 Quiescent Current I3=0,I5=0 8 16 mA 1a

I

2

Pin 6 Quiescent Current I3=0,I5= 0 16 36 mA 1a

I

6

Amplifier Input Bias Current V1= 1 V – 0.1 – 1 µA1a

I

1

V

∆V

∆

V

V

V

V

T

Reference Voltage 2.2 V 1a

7

7

Reference Voltage Drift versus Supply Voltage Vs= 15 to 30 V 1 2 mV/V 1a

V

S

Pin 3 Saturation Voltage to GND I3=20mA 1 V 1c

3L

Quiescent Output Voltage Vs=35V,Ra=39k

5

Output SaturationVoltage to GND I5= 1.2 A 1 1.4 V 1c

5L

Output SaturationVoltage to Supply – I5= 1.2 A 1.6 2.2 V 1b

5H

Junction Temperature for Thermal Shut Down 140 °C

j

=25oC unlessotherwisespecified)

amb

=15V,Ra=13kΩ 7.5 V 1d

V

s

= 0.7 A 0.7 1 V 1c

I

5

= 0.7 A 1.3 1.8 V 1b

–I

5

Ω

18 V 1d

8170-03.TBL

3/7