LT4430 datasheet(8/26 Pages) LINER

Part #	LT4430

Description	Secondary-Side Opto-Coupler Driver Ground-Referenced Opto-Coupler Drive

Download	26 Pages

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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8 / 26 page

LT4430

8

4430fb

BLOCK DIAGRAM

–

+

–

VIN

R2

2k

IOC

8.5μA

VIN

I1

12.5μA

1.1V

0.6V

FB

DFB

V1

0.2V

+

–

VOS

48mV

R1

2k

GND

S1

NORMALLY

OPEN

LOGIC

AND

DELAY

UVLO

STARTUP

BIAS AND

REFERENCE

GENERATOR

ERROR

AMP

OC

AMP

OC

Q6

COMP

OUT

+

–

V2

0.6V

Q7

–

+

OPTO

DRIVER

VIN

I2

12.5μA

Q4

Q1

Q5

Q2

R3

15k

R4

90k

Q3

4430 BD01

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LT4430 Datasheet(PDF) 8 Page - Linear Technology

LT4430 Datasheet(HTML) 8 Page - Linear Technology

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