LT3748E 查看數據表（PDF） - Linear Technology

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产品描述 (功能)

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LT3748E

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

1.223V +

gm

–

RREF

–

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

For more information www.linear.com/LT3748

3748fb

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