DRV8412_11 Datasheet, PDF (4/31 Pages) Texas Instruments – Dual Full Bridge PWM Motor Driver

DRV8412
DRV8432
SLES242D – DECEMBER 2009 – REVISED JULY 2011
DEVICE INFORMATION
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Pin Assignment
Here are the pinouts for the DRV8412/32:
• DRV8412: 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.
• DRV8432: 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.
DRV8412
DDW Package
(Top View)
DRV8432
DKD Package
(Top View)
GVDD_C
1
VDD
2
NC
3
NC
4
PWM_D
5
RESET_CD
6
PWM_C
7
M1
8
M2
9
M3
10
VREG
11
AGND
12
GND
13
OC_ADJ
14
PWM_B
15
RESET_AB
16
PWM_A
17
FAULT
18
NC
19
NC
20
OTW
21
GVDD_B
22
44
GVDD_D
43
BST_D
42
NC
41
PVDD_D
GVDD_B
1
40
PVDD_D
OTW
2
39
OUT_D
FAULT
3
38
GND_D
PWM_A
4
37
GND_C
RESET_AB
5
36
OUT_C
PWM_B
6
35
PVDD_C
OC_ADJ
7
34
BST_C
GND
8
33
BST_B
32
PVDD_B
AGND
9
31
OUT_B
30
GND_B
VREG
10
M3
11
29
GND_A
M2
12
28
OUT_A
M1
13
27
PVDD_A
PWM_C
14
26
PVDD_A
RESET_CD
15
25
NC
PWM_D
16
24
BST_A
VDD
17
23
GVDD_A
GVDD_C
18
36
GVDD_A
35
BST_A
34
PVDD_A
33
OUT_A
32
GND_A
31
GND_B
30
OUT_B
29
PVDD_B
28
BST_B
27
BST_C
26
PVDD_C
25
OUT_C
24
GND_C
23
GND_D
22
OUT_D
21
PVDD_D
20
BST_D
19
GVDD_D
PIN FUNCTIONS
NAME
AGND
BST_A
BST_B
BST_C
BST_D
GND
GND_A
GND_B
GND_C
GND_D
GVDD_A
GVDD_B
GVDD_C
GVDD_D
M1
PIN
DRV8412
12
24
33
34
43
13
29
30
37
38
23
22
1
44
8
DRV8432
9
35
28
27
20
8
32
31
24
23
36
1
18
19
13
FUNCTION ⁽¹⁾
P
P
P
P
P
P
P
P
P
P
P
P
P
P
I
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
High side bootstrap supply (BST), external capacitor to OUT_D 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
Power ground for half-bridge D requires close decoupling capacitor to ground
Gate-drive voltage supply
Gate-drive voltage supply
Gate-drive voltage supply
Gate-drive voltage supply
Mode selection pin
(1) I = input, O = output, P = power, T = thermal
4
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