LT3748IMS(RevA) Просмотр технического описания (PDF) - Linear Technology

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производитель

LT3748IMS
(Rev.:RevA)

100V Isolated Flyback Controller

Linear Technology 

LT3748

BLOCK DIAGRAM

VIN

CIN

RFB

1

TC

VIN

CURRENT

Q1

16

RFB

Q2

TC

12

RTC

20μA

6.04k

BOUNDARY

MODE DETECT

–A1

+

ERROR AMP

14 RREF

RREF

1.223V +

gm

–

1.223V +

–A4

50μs MAX

OFF TIMER

VARIABLE

DELAY TIMER

MASTER

LATCH

S SQ

RR

T1 DOUT

NPS:1

LPRI

LSEC

VOUT +

COUT

VOUT –

INTVCC

5

CBIAS

GATE

A4

6

NMOS

R1

1.223V +

EN/UVLO

3

–A3

R2

2.4μA

SS

10

CSS

INTERNAL

REFERENCE

AND

REGULATORS

50μs MAX

ON TIMER

5μA

A2

100mV

CURRENT

LIMIT

GND

8, 9

SENSE

7

RSENSE

VC

11

3748 BD

RC

CC

3748fa

7

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