KA3511DS データシートの表示（PDF） - Fairchild Semiconductor

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KA3511DS

Intelligent Voltage Mode PWM IC

Fairchild Semiconductor 

KA3511DS

Internal Block Diagram

RT 7

CT 8

COMP 2

OSCILLATOR

PWM

CONTROL

DQ

CK Q

E/A(-) 3

E/A(+) 4

DEAD TIME

CONTROL

21

VREF 14

Vcc 1

V5

DET 9

1.25V

Vref

Start

Up

INTERNAL

BIAS

COMP2

DEAD TIME

CONTROLER

0.1V

R

Q

S

Delay

Controller

1.4V

OVP COMP

Vref

V5

Vref

Ichag

PG

GENERATOR

COMP3

1.8V!"0.6V

1.8V!"0.6V

1.25V

10

TPG

19

TUVP

UVP COMP 1.25V

20

GND

24 C1

22 C2

23 E

5 TREM

6 REM

(PS-ON)

11 PG

18 PT

17 V12

16 V5

15 V3.3

ADSolute Maximum Ratings

Parameter

Supply voltage

Collector output voltage

Collector output current

Power dissipation(KA3511DS)

Operating temperature

Storage temperature

Symbol

VCC

VC1, VC2

IC1, IC2

PD

TOPR

TSTG

Temperature Characteristics

Parameter

Temperature coefficient of Vref (-25°C≤Ta≤85°C)

Symbol

∆Vref/∆T

Value

Unit

40

V

40

V

200

mA

1.5

W

−25 to 85

°C

−65 to 150

°C

Min.

-

Typ.

0.01

Max.

-

Unit

%/°C

2

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