TEA2164S Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Lista de partido

TEA2164S

SWITCH MODE POWER SUPPLY PRIMARY CIRCUIT

STMicroelectronics 

TEA2164S

II - GENERAL DESCRIPTION (continued)

Figure 8 : Overvoltages Lock-out

VCC > VCC(Max.)

IC > ICM2

S

Q

1 : discharge

RR

BURST

OSCILLATOR

VCC STOP

CROSSING

S

OUTPUT

FLIP-FLOP

R

Synchro ”off”

Figure 9 : Long Duration Overload Monitoring Circuit

I3 ch. +

I3 disch.

S

QR

1 : VCM3 detection before

negative pulse occurence

sawtooth return

C2

3

I3 disch.

VC2

VCC < 4.8V

S

RQ

I3 dischr. = 0 in burst mode

Figure 10 : Long Duration Overload Detection

ICM1

Collector

Current

Envelop

0

Capacitor C2

VC2

Voltage

0

TEA2164S

VCC Voltage

0

Overload

VCC(START)

VCC(STOP)

9/16

Share Link: