TAS5121

SLES086A − NOVEMBER 2003 − REVISED MARCH 2004

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7

TYPICAL APPLICATION AND CHARACTERIZATION CONFIGURATION USED WITH TAS5026

PWM PROCESSOR

TAS5121DKD

21

20

5

14

12

11

10

9

8

GVDD_B

OUT_A

GND

PVDD_A

GND

PVDD_B

PVDD_B

PVDD_A

OUT_B

31

32

34

BST_B

OUT_B

33

GND

OUT_A

35

30

28

26

29

27

BST_A

GND

GVDD_A

23

25

22

24

7

15

16

17

13

6

2

3

4

10

µH

10

µH

4.7 k

Ω

1000

µF

PWM_AP_1

PWM_BP_1

1

µF

100

nF

100

Ω

2.7

Ω

2.7

Ω

100 nF

33 nF

100 nF

33 nF

1

µF

100 nF

H-Bridge

Power Supply

Gate-Drive

Power Supply

4.7 k

Ω

PWM_AP

GVDD

GND

M2

M1

DREG

M3

DGND

RESET

OTW

DGND

SD

DVDD

DREG_RTN

GND

PWM_BP

1

Ω

1

Ω

1

GND

GVDD_B

36

18

GND

19

GVDD_A

† Voltage suppressor diodes: 1SMA33CAT3

‡ LPCB : Track in the PCB 1,0 mm wide and 50 mm long)

22

Ω

33

µF

1

µF

22

Ω

1

µF

1

µF

Micro-

controller