DRV3203-Q1_15 Datasheet, PDF (21/37 Pages) Texas Instruments – Three-Phase Brushless Motor Driver

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DRV3203-Q1
SLVSC09A – MAY 2013 – REVISED JUNE 2013
CTLUH
CTLVH
CTLWH
CTLUL
CTLVL
CTLWL
UH
VH
WH
th-ondly
80%
20%
th-on(th-ondly + ton)
th-offdly
80%
20%
th-off(th-offdly + toff)
UL
80%
VL
WL
20%
80%
20%
tl-offdly
tl-off(tl-offdly + toff)
tl-ondly
tl-on(tl-ondly + ton)
NOTE: This diagram excludes dead time to explain the timing parameters of the pre-driver.
Figure 12. Delay Time From Input to Output
CTLUH
CTLVH
CTLWH
CTLUL
CTLVL
CTLWL
xHS
NGND
UH
VH
WH
tdead + th-ondly
UL
VL
WL
tl-offdly
tdead + tl-ondly
Figure 13. Dead Time
th-offdly
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