LT3512 查看數據表（PDF） - Linear Technology

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LT3512

Monolithic High Voltage Isolated Flyback Converter

Linear Technology 

LT3512

BLOCK DIAGRAM

VIN

C1

R3

D1

T1

L1A

L1B

N:1

VOUT +

C2

VOUT –

R5

R4

C4

R1

R2

TC

VIN

RFB

CURRENT

Q3

Q2

TC

FLYBACK

ERROR

AMP

I2

1.2V +–gm

RREF

BIAS

1.21V +

EN/UVLO

–A5

3μA

INTERNAL

REFERENCE

AND

REGULATORS

SW

CURRENT

COMPARATOR

–

+A1

ONE

SHOT

SR

Q

S

MASTER

LATCH

A2

+

V1

120mV –

VIN

DRIVER

BIAS

Q1

A4

RSENSE

0.01Ω

GND

OSCILLATOR

VC

Q4

R6

C3

3512 BD

3512f

6

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