TEA2164

SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT

December 1992

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GROUND

I COPY

LONG CAPACITOR OV ERLOAD CAPACITO R

SUBSTRATE

PULSE INPUT

OSCILLATOR TIMING RESISTOR

OSCILLATOR TIMING CAPACITOR

SUBSTRATE

V

SUPPLY VOLTAGE

OUTPUT STAGE POSITIVE SUPPLY VOLTAGE

OUTPUT (BASE CURRENT)

SUBSTRATE

I

SENSE

LOW FREQUENCY OSCILLATOR CAPACITOR

FEEDBACK INPUT IS BURST MODE

SUBSTRATE

CC

C (max.)

PIN CONNECTIONS

POWERDIP16

(Plastic Package)

ORDER CODE : TEA2164

.

POSITIVE AND NEGATIVE OUTPUT CUR-

RENT UP TO 1.2A AND – 1.7A

.

A TWO LEVEL COLLECTOR CURRENT LIMI-

TATION

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COMPLETE TURN OFF AFTER LONG DURA-

TION OVERLOADS

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UNDER AND OVER VOLTAGE LOCK-OUT

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SOFT START BY PROGRESSIVE CURRENT

LIMITATION

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DOUBLE PULSE SUPPRESSION

.

BURST MODE OPERATION UNDER STAND-

BY CONDITIONS

DESCRIPTION

In a master slave architecture, the TEA2164 control

IC achieves the slave function. Primarily designed

for TV receivers and monitors applications, this

circuit provides an easy synchronization and smart

solution for low power stand by operation.

Located at the primary side the TEA2164 Control

IC ensures :

- the power supply start-up

- the power supply control under stand-by condi-

tions

- the process of the regulation signals sent by the

master circuit located at the secondary side

- directbase drive of the bipolar switching transistor

- the protection of the transistor and the power

supply under abnormal conditions.

For more details, refer to application note AN409.

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