DRV3202-Q1 Datasheet, PDF (24/41 Pages) Texas Instruments – DRV3202-Q1 3-Phase Brushless Motor Driver

Not Recommended for New Designs
DRV3202-Q1
SLVSBJ4B – OCTOBER 2012 – REVISED JULY 2016
Feature Description (continued)
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Figure 18. Pre-Driver Block Diagram
7.2.6 Phase Comparator
A 3-channel comparator module monitors the external FET by detecting voltage across the drain-source for high-
side and low-side FETs. PHTM is the threshold level of comparators usable for sensorless communication.
Figure 19 shows an example of the threshold level. There is no detection when CTLEN = Low.
UHS,
VHS,
WHS
CTLEN
VCOM
PHxM
PHTM
Clamp
Clamp
V_CC
+
-
PMVx
Figure 19. Phase Comparator Block Diagram
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