KA3511BS データシートの表示（PDF） - Fairchild Semiconductor

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KA3511BS

Intelligent Voltage Mode PWM IC

Fairchild Semiconductor 

KA3511BS

Internal Block Diagram

V5 V12

RT 7

CT 8

COMP

2

E/A(-

3

)

4

E/A(+

)

DEAD TIME

CONTROL

21

14

VREF

VCC

1

DET 9

OSCILLATOR

PWM

CONTROL

DQ

CK Q

1.25V

DEAD TIME

CONTROLLER

0.1V

R

Q

S

DELAY

CONTROLLER

REMOTE ON/OFF

1.4V

VREF

INTERNAL

BIAS

Start Up

5V

COMP1

COMP2

1.25V

5V

VREF

Ichag

PG

GENERATOR

VREF OVP

COMP

1.25

V

COMP3

1.8V 0.6V 1.8V

0.6V

10

TPG

2.2u

F

UVP

COMP

1.25

V

19

TUVP

2.2uF

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

Absolute Maximum Ratings

Parameter

Supply voltage

Collector output voltage

Collector output current

Power dissipation(KA3511BS)

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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