TEA2164S 데이터 시트보기 (PDF) - STMicroelectronics

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TEA2164S

SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT

STMicroelectronics 

TEA2164S

I - FIELD OF APPLICATION

The TEA2164S control circuit has been designed

primarily for discontinuous mode flyback built with

a master-slave architecture, whatever the field of

application.

But due to its capability to synchronize the transis-

tor switching-off with an external signal (line fly-

back) and due to an adaptedburst-mode operation

for a low power stand-by operation, the TEA2164

offers a smart solution for monitors and TV sets

applications.

Power supply main features :

- maximum output power 140W (transistor forced

gain : 3.5)

Figure 3 : Master Slave Power Supply Architecture

R

- stand-by mode output power (1W ≤ Psb ≤ 6W ;

efficiency > 50%)

- operating frequency up to 50kHz

- power-switch : bipolar transistor

Adapted master-circuit :

- Monitor application

- Standard TV application

- Digital TV application

→ TEA5170

→ TEA2028B

TEA2029C

TEA2128

TEA5170

→ TEA5170

(TEA2028B, TEA2029C and TEA2128 are deflec-

tion processors with built-in PWM generator).

AUDIO OUTPUT

STAGE

Muting

Control

Mains

Input

C

P2

VCC

TEA2164S

P1

Synchronization

SCANNING

DEVICE

Remote

Standby

VOLTAGE

REGULATOR

Remote

Standby

TEA5170

µP

P1 : Output voltage adjustment in normal mode

P2 : Output voltage adjustment in standby

INFRA-RED

RECEIVER

Power primary ground

Second ground (isolated from mains)

5/16

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