DRV3204-Q1 Datasheet, PDF (20/38 Pages) Texas Instruments – DRV3204-Q1 Three-Phase Brushless Motor Driver

Not Recommended for New Designs
DRV3204-Q1
SLVSBT3C – MARCH 2013 – REVISED JULY 2016
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Feature Description (continued)
7.2.7 Regulators
The regulator block offers 5-V LDO and 3.3-V LDO. The VCC LDO regulates VB down to 5 V with an external
PNP controlled by the regulator block. This 5 V is supplied to MCU and other components.
The VDD regulator regulates VB down to 3.3 V with internal FET and controller. The 5 V LDO is protected
against short to GND fault. Overvoltage and under voltage events of both supplies are detected. The under
voltage of the 5-V LDO is set by SPI.
VB
OC
Current
Limit
VCFB
BG
+
AMP
-
VCCB
VCC
Rsns
PNP Tr
CVCC
* 0.2VáRsns*VCCOC
OV
Superviser
UV
Figure 14. VCC Block Diagram (External Driver)
BG
+
AMP
-
VB
VDD
CVDD
OV
Superviser
UV
Figure 15. VDD Block Diagram
20
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