LT3799 Просмотр технического описания (PDF) - Linear Technology

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производитель

LT3799

Offline Isolated Flyback LED Controller with Active PFC

Linear Technology 

LT3799

BLOCK DIAGRAM

D2

R3

VIN

D1

T1

R4

C1

L1C

C3

R1

C2

L1A

L1B

R5

R10

R2

N:1

6 CT

FAULT

DETECTION

9

FB

S&H

A3

C4

FAULT

5

COMP+

7

+

+ –A2

600mV

–

C6

SW1

1M

COMP–

8

CTRL1

1

CTRL2

2

+++– A5

A6

CTRL3

3

10

DCM

16

VIN_SENSE

1.22V +

–A8

ONE

SHOT

A7

CURRENT

COMPARATOR

–

+A1

SR

Q

S

MASTER

LATCH

A4

MULTIPLIER

LOW OUTPUT

CURRENT

OSCILLATOR

4 VREF

11

VIN

R7

R8

DRIVER

INTVCC 13

GATE

14

SENSE

15

GND

17

3799 BD

C5

M1

R6

VOUT +

C7

VOUT –

3799p

8

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