Datasheet

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GVDD_C
VDD
NC
NC
PWM_D
RESET_CD
PWM_C
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_B
RESET_AB
PWM_A
NC
FAULT
NC
OTW
GVDD_B
DRV8412
DDW Package
(Top View)
GVDD_D
BST_D
NC
PVDD_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
OUT_A
PVDD_A
PVDD_A
NC
BST_A
GVDD_A
44
43
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36
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GVDD_B
FAULT
RESET_AB
RESET_CD
PWM_B
PWM_D
PWM_C
OTW
GND
PWM_A
AGND
OC_ADJ
M3
VDD
GVDD_C
VREG
M2
M1
GVDD_A
BST_A
PVDD_A
OUT_A
GND_A
GND_B
OUT_B
PVDD_B
BST_B
PVDD_C
BST_C
OUT_C
GND_C
GND_D
OUT_D
PVDD_D
BST_D
GVDD_D
DRV8432
DKD Package
(Top View)
DRV8412
DRV8432
SLES242C –DECEMBER 2009–REVISED MAY 2010 www.ti.com
DEVICE INFORMATION
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.
PIN FUNCTIONS
PIN
DESCRIPTION
NAME DRV8412 DRV8432 FUNCTION
(1)
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 34 27 P High side bootstrap supply (BST), external capacitor to OUT_C required
BST_D 43 20 P High side bootstrap supply (BST), external capacitor to OUT_D required
GND 13 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 37 24 P Power ground for half-bridge C requires close decoupling capacitor to ground
GND_D 38 23 P Power ground for half-bridge D 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 18 P Gate-drive voltage supply
GVDD_D 44 19 P Gate-drive voltage supply
M1 8 13 I Mode selection pin
(1) I = input, O = output, P = power, T = thermal
4 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): DRV8412 DRV8432