LT3599IFE(RevD) 데이터 시트보기 (PDF) - Linear Technology

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LT3599IFE
(Rev.:RevD)

4-Channel 120mA LED Driver with ±1.5% Current Matching

Linear Technology 

LT3599

Typical Applications

8W LED Driver

2MHz Boost, Three Strings, 100mA per String, 7 LEDs per String

PVIN

8V TO 16V

L1

4.7µH

D1

R1

200k

C1

3.3µF

25V

VIN

3.1V TO 5.5V

VIN

VIN

R4

R5

100k

C3

1µF

6.3V

100k

R2

31.6k

PWM

VIN

SW

SHORTLED

OPENLED

SHDN/UVLO

PWM

SYNC LT3599

VOUT

VO_SW

FB

R10

1M

R11

43.2k

C2

4.7µF

50V

s2

7 LEDs/

STRING

R3

33.2k

R6

21.5k

R7

53.6k

R8

80.6k

CTRL

RT

VREF

DISABLE4

TSET

LED1

LED2

LED3

LED4

ISET SS GND VC

100mA PER STRING

C1: MURATA GRM21BR71E335K

C2: MURATA GRM31CR71H475K

D1: DIODES INC. DFLS240

L1: SUMIDA CDRH4D22HPNP-4R7N

R9

13.3k

C4

47nF

RC

10k

100pF

CC

2.2nF

3599 TA05a

3599fd

21

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