DRV3204-Q1 Datasheet, PDF (21/38 Pages) Texas Instruments – DRV3204-Q1 Three-Phase Brushless Motor Driver

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DRV3204-Q1
SLVSBT3C – MARCH 2013 – REVISED JULY 2016
Feature Description (continued)
7.2.8 VB Monitor
The VB monitoring system has two comparators for under- and overvoltage, and has pre-driver stop controlling
system respectively. Overvoltage provides pre-driver stop condition selectable (SPI control). On the other hand,
under voltage must stop pre-driver operation under detection (no selectable). System should return to normal
operation automatically after undetected level.
VB
+
VB_OV
VB_UV
VREF
-
Figure 16. VB Monitor Block Diagram
7.2.9 Thermal Shutdown
The device has temperature sensors that produce pre-driver stop condition if the chip temperature exceeds 175
degree.
IPTAT
TSD
Figure 17. Thermal Shutdown Block Diagram
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