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TEA2164S

SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT

STMicroelectronics 

TEA2164S

SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT

. POSITIVE AND NEGATIVE OUTPUT CUR-

RENT UP TO 1.2A AND – 1.7A

. A TWO LEVEL COLLECTOR CURRENT LIMI-

TATION

. COMPLETE TURN OFF AFTER LONG DURA-

TION OVERLOADS

. UNDER AND OVER VOLTAGE LOCK-OUT

. SOFT START BY PROGRESSIVE CURRENT

LIMITATION

. DOUBLE PULSE SUPPRESSION

. BURST MODE OPERATION UNDER STAND-

BY CONDITIONS

DESCRIPTION

In a master slave architecture,the TEA2164Scon-

trol IC achieves the slave function. Primarily de-

signed 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 TEA2164S 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

- direct base 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.

PIN CONNECTIONS

POWERDIP16

(Plastic Package)

ORDER CODE : TEA2164S

GROUND

1

I COPY

2

LONG OVERLOAD CAPACITOR

3

SUBSTRATE

4

SUBSTRATE

5

PULSE INPUT

6

OSCILLATOR TIMING RESISTOR

7

OSCILLATOR TIMING CAPACITOR

8

16

VCC SUPPLY VOLTAGE

15

OUTPUT STAGE POSITIVE SUPPLY VOLTAGE

14

OUTPUT (BASE CURRENT)

13

SUBSTRATE

12

SUBSTRATE

11

IC(Max.) SENSE

10

LOW FREQUENCY OSCILLATOR CAPACITOR

9

FEEDBACK INPUT IN BURST MODE

January 1998

1/16

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