M61556FP

Rev.1.0, Sep.19.2003, page 3 of 13

Sample Application Circuit

External

External

Protect

Protect

Detector

Detector

INB

INB

+

INA

INA

+

GND

GNDA

VDDA

22

23

24

26

27

28

31

32

33

34

35

36

37

38

39

40

41

42

21

20

19

18

17

16

15

14

13

12

11

9

8

7

6

5

4

3

2

1

25

10

GNDB

PAD5VB

NC

NC

GNDP

INB+

IREFDT

DTCONTA1

INA+

NC

PAD5VA

VDDB

LSGOUTB

HSGOUTB

OUTDB

PROTECT

HBB

DTCONTB1

HBA

OUTDA

LSGOUTA

NC

HSGOUTA

29

30

NC

NC

DTCONTA2

DTCONTA3

NC

PROUT

FIL5V

FILDT

GNDA

NC

VDDA

NC

DTCONTB3

NC

DTCONTB2

THIN

NC

VDDP

PR

PROUT

NC

Power

PowerVDD:

DD:

VDD = 12V

VDD = 12V

10

Ω

10

Ω

10

Ω

10

Ω

0.022

µF

0.022uF

10uH

1

µF

1

µF

10uH

PowerMOSFET:

0.01

µF

4.7

µF

0.01

µF

0.01

µF

4.7

µF

0.01

µF

4.7

µF

6.2k

Ω

To other channels

To other channels

(protection status monitor)

(protection status monitor)

Notes :

1. Refer to section 9.1, Dead Time Control, for information on the settings for pins 6, 15, 16, 29, 30, and 34.

2. Audio performance can be improved by connecting a snubber circuit to the output power FET.