LT3573EMSE 查看數據表（PDF） - Linear Technology

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LT3573EMSE

Isolated Flyback Converter without an Opto-Coupler

Linear Technology 

LT3573

BLOCK DIAGRAM

VIN

C1

R3

D1

T1

L1A

L1B

N:1

VOUT +

C2

VOUT –

VIN

RFB

TC

CURRENT

FLYBACK

TC

R6

Q3

Q2

I2

20µA

1.23V

ERROR

AMP

+–gm

CURRENT

COMPARATOR

–

+A1

RREF

SW

ONE

SHOT

A2

+

V1

120mV –

VIN

DRIVER

BIAS

SR

R4

Q

Q1

BIAS

C5

R1

1.22V

SHDN/UVLO

+

–A5

INTERNAL

REFERENCE

AND

I1

R2

2.5µA

REGULATORS

7µA

S

MASTER

LATCH

A4

OSCILLATOR

RSENSE

0.02Ω GND

VC

Q4

SS

C3

RILIM

3573 BD

R7

C4

R5

3573fd

6

For more information www.linear.com/LT3573

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