TEA2260

TEA2261

SWITCH MODE POWER SUPPLY CONTROLLER

June 1992

.

POSITIVE AND NEGATIVE CURRENT UP TO

1.2A and – 2A

.

LOW START-UP CURRENT

.

DIRECT DRIVE OF THE POWER TRANSIS-

TOR

.

TWO LEVELS TRANSISTOR CURRENT LIMI-

TATION

.

DOUBLE PULSE SUPPRESSION

.

SOFT-STARTING

.

UNDER AND OVERVOLTAGE LOCK-OUT

.

AUTOMATIC STAND-BY MODE RECOGNI-

TION

.

LARGE POWER RANGE CAPABILITY IN

STAND-BY (Burst mode)

.

INTERNAL PWM SIGNAL GENERATOR

DESCRIPTION

The TEA2260/61 is a monolithic integrated circuit

for the use in primary part of an off-line switching

mode power supply.

All functions required for SMPS control under nor-

mal operating, transient or abnormal conditions are

provided.

The capability of working according to the "master-

slave" concept, or according to the "primary regu-

lation" mode makes the TEA2260/61 very flexible

and easy to use. This is particularly true for TV

receivers where the IC provides an attractive and

low cost solution (no need of stand-by auxiliary

power supply). See application note AN376/0490

for detailed information.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

IS

IN

GND

GND

E

S

C2

TRANSFORMER DEMAGNETIZATION SENSING INPUT

SECONDARY PULSES INPUT

POWER TRANSISTOR CURRENT LIMITATION INPUT

GROUND

GROUND

ERROR AMPLIFIER INPUT (INVERTING)

ERROR AMPLIFIER OUTPUT

OVERLOAD INTEGRATION CAPACITOR

V+

OUT

GND

GND

R0

C0

C1

POWER SUPPLY

POSITIVE OUTPUT STAGE SUPPLY

POWER OUTPUT

GROUND

GROUND

OSCILLATOT RESISTOR

OSCILLATOR CAPACITOR

SOFT-START CAPACITOR

PIN CONNECTIONS

BATWING DIP 16

(Plastic Package)

ORDER CODES : TEA2260 - TEA2261

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