Datasheet

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
SLES256C –MAY 2010–REVISED OCTOBER 2013 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
FUNCTION
(1)
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, VREG connection is recommended
3,4,19,20,25,34,35
NC 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 Submit Documentation Feedback Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: DRV8312 DRV8332