LT1619_ データシートの表示（PDF） - Linear Technology

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LT1619_

High Input Voltage, Current Mode Boost, Flyback and SEPIC Controller

Linear Technology 

LTC1871-7

BLOCK DIAGRA

SLOPE

COMPENSATION

FREQ

4

V-TO-I

OSC

0.6V

MODE/SYNC

IOSC

5

85mV

+ – OV

50k

1.230V

FB

3

1.230V

ITH

2

INTVCC

8

5.6V UP

4.6V DOWN

+

– EA

gm

+

7V

LDO

– UV

+

BURST

+ COMPARATOR

0.30V

–

1.230V

V-TO-I

SLOPE

TO

START-UP

BIAS

CONTROL

VIN

BIAS AND

START-UP

CONTROL

PWM LATCH

S

Q

R

RUN

1

C2

1.248V

LOGIC

VIN

9

INTVCC

GATE

7

GND

CURRENT

COMPARATOR

C1

SENSE

10

ILOOP

1.230V

VREF

RLOOP

GND

6

18717 BD

18717f

7

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