Datasheet

PWM_A
PWM_B
PWM_C
Phase A
CurrentandVoltage
PhaseB
CurrentandVoltage
PhaseC
CurrentandVoltage
BackEMF(Vab)
Ia
Ib
Ic
Va
Vb
Vc
PWM=100% PWM=75%
S1 S6S5S4S3S2 S1 S6S5S4S3S2
BackEMF(Vbc)
BackEMF(Vca)
360
o
360
o
0V
0V
0V
0A
0A
0A
0V
0V
0V
RESET_A
RESET_B
RESET_C
DRV8312
DRV8332
SLES256D –MAY 2010–REVISED JANUARY 2014 www.ti.com
Figure 12. Sensorless Control with 6 Steps Trapezoidal Scheme
18 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated
Product Folder Links: DRV8312 DRV8332