1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

GVDD_C

VDD

NC

NC

PWM_C

RESET_C

RESET_B

OC_ADJ

GND

AGND

VREG

M3

M2

M1

PWM_B

RESET_A

PWM_A

NC

FAULT

NC

OTW

GVDD_B

DRV8312

DDW Package

(Top View)

GVDD_C

BST_C

NC

PVDD_C

PVDD_C

OUT_C

GND_C

GND

GND

NC

NC

BST_B

PVDD_B

OUT_B

GND_B

GND_A

OUT_A

PVDD_A

PVDD_A

NC

BST_A

GVDD_A

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

1

2

3

4

5

6

7

8

9

11

10

12

13

14

15

16

17

18

36

35

34

33

32

31

30

29

28

26

27

25

24

23

22

21

20

19

GVDD_B

FAULT

RESET_A

RESET_C

PWM_B

PWM_C

RESET_B

OTW

GND

PWM_A

AGND

OC_ADJ

VREG

VDD

GVDD_C

M3

M2

M1

GVDD_A

BST_A

PVDD_A

OUT_A

GND_A

GND_B

OUT_B

PVDD_B

BST_B

NC

NC

GND

GND

GND_C

OUT_C

PVDD_C

BST_C

GVDD_C

DRV8332

DKD Package

(Top View)

DRV8312

DRV8332

SLES256 – MAY 2010

www.ti.com

DEVICE INFORMATION

Pin Assignment

Here are the pinouts for the DRV8312/32:

•

DRV8312: 44-pin TSSOP power pad down DDW package. This package contains a thermal pad that is

located on the bottom side of the device for dissipating heat through PCB.

•

DRV8332: 36-pin PSOP3 DKD package. This package contains a thick heat slug that is located on the top

side of the device for dissipating heat through heatsink.

Pin Functions

PIN

DESCRIPTION

NAME

DRV8312

DRV8332

AGND

12

9

P

Analog ground

BST_A

24

35

P

High side bootstrap supply (BST), external capacitor to OUT_A required

BST_B

33

28

P

High side bootstrap supply (BST), external capacitor to OUT_B required

BST_C

43

20

P

High side bootstrap supply (BST), external capacitor to OUT_C required

GND

13, 36, 37

8

P

Ground

GND_A

29

32

P

Power ground for half-bridge A requires close decoupling capacitor to ground

GND_B

30

31

P

Power ground for half-bridge B requires close decoupling capacitor to ground

GND_C

38

23

P

Power ground for half-bridge C requires close decoupling capacitor to ground

GVDD_A

23

36

P

Gate-drive voltage supply

GVDD_B

22

1

P

Gate-drive voltage supply

GVDD_C

1, 44

18, 19

P

Gate-drive voltage supply

M1

8

13

I

Mode selection pin

M2

9

12

I

Mode selection pin

M3

10

11

I

Reserved mode selection pin, AGND connection is recommended

NC

3,4,19,20,25,34,35

26,27

-

No connection pin. Ground connection is recommended

,42

OC_ADJ

14

7

O

Analog overcurrent programming pin, requires resistor to AGND

(1)

I = input, O = output, P = power, T = thermal

4

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Product Folder Link(s): DRV8312 DRV8332