TEA1533AP 데이터 시트보기 (PDF) - Philips Electronics

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TEA1533AP

GreenChip™II SMPS control IC

Philips Electronics 

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VCC 1

S1

2

GND

SUPPLY

MANAGEMENT

M-level

internal UVLO start

supply

VOLTAGE

CONTROLLED

OSCILLATOR

FREQUENCY

CONTROL

START-UP

CURRENT SOURCE

DEMAG

SHORT

PROTECTION

OCP

VALLEY

Iprot(DEM)

clamp

LOGIC

50

mV

100

mV

UP/DOWN

COUNTER

OVER-

VOLTAGE

PROTECTION

8 DRAIN

7 HVS

n.c.

4

DEM

3

CTRL

Iprot(CTRL)

−1

POWER-ON

RESET

2.5 V

burst

detect

OVER-

TEMPERATURE

PROTECTION

LOGIC

SQ

UVLO R Q

SQ

VCC < 4.5 V

or UVLO

(TEA1533AP)

RQ

TEA1533P

TEA1533AP

MAXIMUM

ON-TIME

PROTECTION

DRIVER

LEB

blank

OCP

6 DRIVER

Iss

soft

0.5 V

start

S2

5

Isense

short

winding

0.88 V

OVERPOWER

PROTECTION

MGU506

Fig.2 Block diagram.

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