TDA2270

TV VERTICAL DEFLECTION OUTPUT CIRCUIT

September 1992

.

DRIVES VERTICAL DEFLECTION WIND-

INGS DIRECTLY

.

HIGH EFFICIENCY

.

INTERNAL FLYBACK GENERATOR

.

THERMAL PROTECTION

.

ON-CHIP VOLTAGE REFERENCE

.

HIGH OUTPUT CURRENT (2.2 A peak)

.

16-LEAD POWERDIP PLASTIC PACKAGE

DIP16

(Plastic package)

ORDER CODE : TDA2270

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

SUPPLY VOLTAGE

FLYBACK

GENERATOR

NC

GND

OUTPUT

OUTPUT STAGE

SUPPLY

NC

GND

NON-INVERTING

INPUT

INVERTING INPUT

NC

GND

REFERENCE

VOLTAGE

GND

GND

NC

PIN CONNECTIONS

DESCRIPTION

The TDA2270 is a high efficiency monolithic output

stage for vertical deflection circuits in TVs and

monitors. Driving the vertical windings directly, the

device contains a power amplifier, flyback gener-

ator, voltage reference and thermal protection cir-

cuit.

The TDA2270 is supplied in a 16-pin DIP with the

four center pins connected together and used for

heatsinking.

2

8

1

15

16

7

YOKE

+V

S

FLYBACK

GENERATOR

THERMAL

PROTECTION

POWER

AMP.

REFERENCE

VOLTAGE

9

4

5

12 13 10

BLOCK DIAGRAM

1/7