LT3799EMSE-1-PBF Просмотр технического описания (PDF) - Linear Technology

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LT3799EMSE-1-PBF

Offline Isolated Flyback LED Controller with Active PFC

Linear Technology 

LT3799-1

TYPICAL APPLICATIONS

Universal 20W LED Driver

L1

33mH

L2

800μH

BR1

90V

TO 265V

AC

C1

0.068μF

BR1: DIODES, INC. HD06

D1: CENTRAL SEMICONDUCTOR CMR1U-06M

D2, D3: DIODES INC. BAV20W

DR: CENTRAL SEMICONDUCTOR CMR1U-02M

Z1: FAIRCHILD SMBJ170A

Z2: CENTRAL SEMICONDUCTOR CMZ5937B

T1: COILCRAFT JA4429-AL

M1: FAIRCHILD FDPF15N65

FAULT

R7

100k

C2

R3

499k

R8

100k

0.22μF R4

499k

D3

R6

D2 20Ω

C4

C5 4.7pF

10μF

R13

2k

4:1:1

R4

VIN

DCM

100k

D4

1A

R5

3.48k

VIN_SENSE

LT3799-1

FB

R15

Z1

170V

4.99k

D1

C10

560μF

×2

4.02k

R18 R16

100k 32.4k

R9

40.2k

VREF

CTRL3

CTRL2

R16

20Ω

GATE

M1

SENSE

Z2

33V

100k

CTRL1

NTC R10

14.3k

INTVCC

GND

C9

4.7μF

RS

0.05Ω C8

2.2nF

FAULT CT COMP+ COMP–

C7, 0.1μF

37991 TA02

20W

LED

POWER

Component Values for Input Voltage Ranges

R5 (Ω)

Optimized for 110V

6.34k

Optimized for 220V

3.48k

Universal

3.48k

R10 (Ω)

15.8k

24.9k

14.3k

RS (Ω)

0.05

0.075

0.05

C2 (μF)

0.22

0.1

0.22

37991f

17

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