DRV8412 Datasheet, PDF (15/28 Pages) Texas Instruments – Dual Full Bridge PWM Motor Driver

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DRV8412
DRV8422
DRV8432
SLES242A – DECEMBER 2009 – REVISED DECEMBER 2009
GVDD
330 uF
Controller
(MSP430
C2000 or
Stellaris MCU)
GVDD
47 uF
1uF
PVDD
1uF
GVDD_B
GVDD_A
3.3
10 nF
1000 uF
OTW
FAULT
PWM_A
RESET_AB
BST_A
100 nF
PVDD_A
OUT_A
GND_A
100nF
Rsense_AB
(option)
Loc
Roc_adj
PWM_B
GND_B
100nF
Loc
OC_ADJ
OUT_B
1
GND
PVDD_B
M
100 nF
AGND
VREG
BST_B
BST_C
100 nF
100 nF
M3
PVDD_C
Rsense_CD
(option)
M2
OUT_C
100nF
Loc
M1
GND_C
PWM_C
GND_D
100nF
Loc
RESET_CD OUT_D
PWM_D
PVDD_D
VDD
100 nF
BST_D
1uF
GVDD_C
GVDD_D
PVDD
1uF
1uF
PWM_A controls OUT_A and OUT_B; PWM_B controls OUT_C and OUT_D.
Figure 9. Application Diagram Example for Parallel Full Bridge Mode Operation
GVDD
330 uF
Controller
(MSP430
C2000 or
Stellaris MCU)
GVDD
47 uF
1uF
3.3
1uF
GVDD_B
GVDD_A
10 nF
OTW
FAULT
BST_A
100 nF
PVDD_A
PWM_A
RESET_AB
OUT_A
GND_A
100nF
Loc
Roc_adj
1
100 nF
PWM_B
OC_ADJ
GND
AGND
VREG
M3
GND_B
OUT_B
PVDD_B
BST_B
BST_C
PVDD_C
100nF
Loc
100 nF
100 nF
M2
M1
PWM_C
RESET_CD
OUT_C
GND_C
GND_D
OUT_D
100nF
Loc
100nF
Loc
PWM_D
PVDD_D
VDD
100 nF
BST_D
1uF
GVDD_C GVDD_D
1uF
1uF
PVDD
1000 uF
M
PVDD
Figure 10. Application Diagram Example for Stepper Motor Operation
Copyright © 2009, Texas Instruments Incorporated
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