DRV8412 Datasheet, PDF (16/28 Pages) Texas Instruments – Dual Full Bridge PWM Motor Driver

DRV8412
DRV8422
DRV8432
SLES242A – DECEMBER 2009 – REVISED DECEMBER 2009
www.ti.com
GVDD
330 uF
Controller
(MSP430
C2000 or
Stellaris MCU)
GVDD
47 uF
1uF
3.3
1uF
Roc_adj
1
GVDD_B
GVDD_A
OTW
FAULT
PWM_A
RESET_AB
BST_A
PVDD_A
OUT_A
100 nF
Rsense_A
GND_A
100nF
PWM_B
OC_ADJ
GND_B
OUT_B
100nF
GND
PVDD_B
10 nF
Loc
Rsense_B
Loc
100 nF
AGND
VREG
BST_B
BST_C
100 nF
100 nF
M3
PVDD_C
M2
OUT_C
M1
GND_C
100nF
PWM_C
RESET_CD
GND_D
OUT_D
Loc
100nF
PWM_D
PVDD_D
VDD
100 nF
BST_D
Rsense_D
1uF
GVDD_C GVDD_D
1uF
1uF
PVDD
1000 uF
M
PVDD
Figure 11. Application Diagram Example for Three Phase PMSM PVDD Sense Operation
GVDD
330 uF
Controller
(MSP430
C2000 or
Stellaris MCU)
GVDD
47 uF
1uF
Roc_adj
1
100 nF
1uF
PVDD
GVDD_B
GVDD_A
3.3
10 nF
1000 uF
OTW
BST_A
100 nF
FAULT
PVDD_A
Loc
PWM_A
OUT_A
RESET_AB
Rsense_A _100nF
GND_A
PWM_B
Rsense_B
GND_B
M
Loc
OC_ADJ
OUT_B
GND
AGND
PVDD_B
100 nF
BST_B
100nF
VREG
M3
BST_C
100 nF
PVDD_C
Rsense_x £ 10 mW or
Vsense_x < 100 mV
M2
OUT_C
100nF
M1
GND_C
Rsense_D
PWM_C
GND_D
Loc
RESET_CD OUT_D
PWM_D
PVDD_D
VDD
100 nF
BST_D
100nF
1uF
GVDD_C
GVDD_D
PVDD
1uF
1uF
Figure 12. Application Diagram Example for Three Phase PMSM GND Sense Operation
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