DRV3203-Q1 Datasheet, PDF (21/39 Pages) Texas Instruments – DRV3203-Q1 Three-Phase Brushless Motor Driver

Not Recommended for New Designs
www.ti.com
DRV3203-Q1
SLVSC09B – MAY 2013 – REVISED JULY 2016
Feature Description (continued)
7.2.7 Regulators
The regulator block offers 3.3-V LDOs. The VCC LDO regulates VB down to 3.3 V with an external PNP
controlled by the regulator block. This 3.3-V LDO is supplied to MCU and other components.
The VDD regulator regulates VB down to 3.3 V with internal FET and controller. The 3.3-V LDO with the external
PNP is protected against short to GND fault. Overvoltage and undervoltage events of both supplies are detected.
The under voltage of the 3.3-V LDO with the external PNP 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
Supervisor
UV
Figure 15. VDD Block Diagram
Copyright © 2013–2016, Texas Instruments Incorporated
Product Folder Links: DRV3203-Q1
Submit Documentation Feedback
21