SLES256 – MAY 2010
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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.
DRV8312
DDW Package
(Top View)
GVDD_C
VDD
NC
NC
PWM_C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
DRV8332
DKD 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
GVDD_B
OTW
FAULT
PWM_A
RESET_A
PWM_B
OC_ADJ
GND
AGND
VREG
M3
M2
M1
RESET_B
RESET_C
PWM_C
VDD
GVDD_C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
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
RESET_C
RESET_B
M1
M2
M3
VREG
AGND
GND
OC_ADJ
PWM_B
RESET_A
PWM_A
FAULT
NC
NC
OTW
GVDD_B
GVDD_C
Pin Functions
PIN
NAME
AGND
BST_A
BST_B
BST_C
GND
GND_A
GND_B
GND_C
GVDD_A
GVDD_B
GVDD_C
M1
M2
M3
NC
OC_ADJ
DRV8312
12
24
33
43
13, 36, 37
29
30
38
23
22
1, 44
8
9
10
3,4,19,20,25,34,35
,42
14
DRV8332
9
35
28
20
8
32
31
23
36
1
18, 19
13
12
11
26,27
7
FUNCTION
P
P
P
P
P
P
P
P
P
P
P
I
I
I
-
O
(1)
DESCRIPTION
Analog ground
High side bootstrap supply (BST), external capacitor to OUT_A required
High side bootstrap supply (BST), external capacitor to OUT_B required
High side bootstrap supply (BST), external capacitor to OUT_C required
Ground
Power ground for half-bridge A requires close decoupling capacitor to ground
Power ground for half-bridge B requires close decoupling capacitor to ground
Power ground for half-bridge C requires close decoupling capacitor to ground
Gate-drive voltage supply
Gate-drive voltage supply
Gate-drive voltage supply
Mode selection pin
Mode selection pin
Reserved mode selection pin, AGND connection is recommended
No connection pin. Ground connection is recommended
Analog overcurrent programming pin, requires resistor to AGND
(1)
4
I = input, O = output, P = power, T = thermal
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