MP7740DN 参数 Datasheet PDF下载

MP7740 – 15W CLASS D MONO SINGLE ENDED AUDIO AMPLIFIER

TYPICAL APPLICATION CIRCUIT

V

DD

R

RH

OFF ON

4

EN

VDD

6

C

VDDBYP

C

BYP

1

5.6nF

C

INT

2

PIN

PGND

8

MP7740

NIN

BS

R

RL

C

R

5

C

BS

3

AGND

SW

7

R

FB

AUDIO

INPUT

D

SL

(Optional)

(8)

L

F

C

IN

R

IN

C

FB

22pF

C

OUT

C

F

OUTPUT

Figure 1— Mono Typical Application Circuit

AGND

Feedback

signal

C

FB

R

FB

C

VDDBYP

PGND

AGND

PGND

C

F

R

RL

C

R

C

INT

R

RH

1

2

3

4

PIN

NIN

AGND

EN

PGND

SW

VDD

BS

8

7

6

5

C

BS

C

BYP

(Optional)

D

SL

(8)

L

F

MP7740

Top

Figure 2—Reference PCB Layout

Bottom

Notes:

8) Schottky diode D

SL

only be required for short circuit protection. Detailed see SHORT CIRCUIT/OVERLOAD PROTECTION section in

Operation Information.

MP7740 Rev. 0.9

9/22/2009

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2009 MPS. All Rights Reserved.

11