EV3378-S-00A – 4-CHANNEL WLED CONTROLLER PLUS BUCK CONVERTER

EV3378-S-00A Rev.1.0

www.MonolithicPower.com

2

2/2/2015

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

© 2015 MPS. All Rights Reserved.

EV3378-S-00A EVALUATION BOARD

(L x W x H) 5.9cm x 8.4cm x 2cm

Board Number

MPS IC Number

EV3378-S-00A

MP3378GS

EVALUATION BOARD SCHEMATIC

10

R3

NC

R1

0

R9

1

VIN

1

GND

1

EN/BL

1

PWM

4.7uF

C4

NC

C5

220uF

C1

GND1

2

1

F1

GND1

33uH/3.2A

L1

D1

NC

C7

2.2uF

C2

22uF/100V

C6

2.2uF

C3

357K

R2

10K

R4

100pF

C8

1

LED

1

LED1

1

LED2

1

LED3

1

LED4

0

R12

0

R13

0

R15

0

R5

4

1, 2, 3

5, 6, 7, 8

M1

100V/4A

2K

R16

100K

R18

GND1

NC

C12

100K

R14

GND1

226K

R10

GND1

2K

R8

100K

R11

GND1

470nF

C9

270

R7

470nF

C10

GND1

50m

R6

8V-24V

10S 4P 120mA/string

NC

C11

8.45K

R17

NC

C13

0

R19

NC

C14

2K

R20

1

A-DIM

2K

R21

NC

C15

ISET

3

PWM

28

OSC

2

EN

27

COMP

26

VCC1

25

VIN

24

LED4

5

LED3

6

LED2

7

LED1

8

OVP

9

GND1

1

ISENSE

22

GATE

23

ADIM

4

IN

15

SYNC

21

BST

20

SW

16

FB

12

VCC2

14

AAM

13

GND2

17

GND2

18

NC

10

NC

11

AGND

19

U1

MP3378

8V-24V

NC

C16A

GND1

GND1

GND1

GND1

GND1

GND1

GND2

100nF

C17

1K

R22

10K

R23

GND2

100nF

C18

GND2

75K

R24

1nF

C19

GND2

47

R25

100nF

C20

10uH

L2

1

Vout

5V/2A

GND2

51K

R26

40.2K

R27

7.68K

R28

GND2

1

GND

GND2

15pF

C22

0

R29

GND2

NC

C23

NC

R30

GND2

604

R31

IN

IN

22uF

C16

22uF

C21

22uF

C21A

Gate

Gate

0

R32

22uF

C21B