DRV3201-Q1_16 Datasheet, PDF (50/60 Pages) Texas Instruments – DRV3201-Q1 3 Phase Motor Driver-IC for Automotive Safety Applications

DRV3201-Q1
SLVSBD6D – MAY 2012 – REVISED AUGUST 2015
9 Power Supply Recommendations
The devices are designed to operate from an input voltage supply range from 4.76 V to 30 V.
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10 Layout
10.1 Layout Guidelines
Use the following guidelines when designing a PCB for the DRV3201-Q1:
• In addition to the GND pins, the DRV3201 makes an electrical connection to GND through the PowerPAD.
Always check to ensure that the PowerPAD has been properly soldered (See PowerPAD application report,
SLMA002).
• VS bypass capacitors should be placed close to the power supply terminals (RED).
• VCC5 and VCC5 bypass capacitors should be placed close to their corresponding pins with a low
impendance path to the ground plane pin (PURPLE).
• GNDA, GNDL, and PGND should all be tied to the ground plane through a low impendance trace/copper fill.
• Add stitching vias to reduce the impendance of the GND path from the top to bottom side.
• Try to clear the space around and underneath the DRV3201-Q1 to allow for better heat spreading from the
PowerPAD.
• Route sense lines IPx and INx, each with their own unique trace, directly to either side of the sense resistor.
• Keep BOOST components close to the device and current loops small (GREEN).
• Place sense resistors close to their respective low-side FET (YELLOW).
• Place GNDLS_B resistor close to device pin (BLUE).
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