MP3393—8-STRING WHITE LED DRIVER WITH STEP-UP CONTROLLER

MP3393 Rev. 1.05

www.MonolithicPower.com

17

3/26/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2013 MPS. All Rights Reserved.

0

R3

10

R1

NC

C6

VIN1

GND1

FF1

EN1

DIM1

4.7 /50V

C2

JP1

NC

C3

220 F/35V

C1

F1

33 H/3A

L1

B360

D1

470pF

C8

2.2 F/100V

C4

47 F/100V

C7

2.2 F/100V

C5

357k

R2

10k

R6

100PF

C10

R5

10

R18

10

R8

2k

R28

20k

R29

2k

R20

20k

R24

10k

R9

0.47 F

C11

0

R13

1 F

C12

0.05

R14

NC

R15

10V -28V

10S 8P 200mA/string

AM4499P

M1

4.7nF

C9

NC

R11

M2

M3

300

R12

470pF

C13

VIN

1

VCC

2

COMP

3

OSC

4

EN

5

DIM

6

FB1

7

CTL1

8

FB2

9

CTL2

10

FB3

11

CTL3

12

FB4

13

CTL4

14

CTL5

15

FB5

16

CTL6

17

FB6

18

CTL7

19

FB7

20

CTL8

21

FF

23

OVP

24

GND

25

ISENSE

26

GATE

27

VFAULT

28

FB8

22

MP3393EF

*1

MP3393EF

NC

C14

100k

R19

Q1

0

R7

1

R16

10

R23

Q2

0

R10

1

R21

10

R38

Q6

0

R31

1

R36

10

R27

Q3

0

R17

1

R25

10

R32

Q4

0

R22

1

R30

10

R35

Q5

0

R26

1

R33

10

R40

Q7

0

R34

1

R39

10

R42

Q8

0

R37

1

R41

10

R50

10k

R44

0.47

C15

0

R47

NC

R46

VIN

1

VCC

2

COMP

3

OSC

4

EN

5

DIM

6

FB1

7

CTL1

8

FB2

9

CTL2

10

FB3

11

CTL3

12

FB4

13

CTL4

14

CTL5

15

FB5

16

CTL6

17

FB6

18

CTL7

19

FB7

20

CTL8

21

FF

23

OVP

24

GND

25

ISENSE

26

GATE

27

VFAULT

28

FB8

22

MP3393EF

*2

MP3393EF

NC

C16

100k

R51

Q9

0

R43

1

R48

10

R54

Q10

0

R45

1

R52

10

R66

Q14

0

R59

1

R64

10

R57

Q11

0

R49

1

R55

10

R60

Q12

0

R53

1

R58

10

R63

Q13

0

R56

1

R61

10

R68

Q15

0

R62

1

R67

10

R70

Q16

0

R65

1

R69

LED17

LED16

LED15

LED14

LED13

LED12

LED11

LED10

LED9

LED8

LED7

LED6

LED5

LED4

LED3

LED2

LED1

2k

R4

OVP

Figure 5: Driving 16 LED Strings (2 MP3393 in Parallel)