DRV8301-Q1 Datasheet, PDF (23/28 Pages) Texas Instruments – AUTOMOTIVE THREE PHASE PRE-DRIVER WITH DUAL CURRENT SHUNT AMPLIFIERS

DRV8301-Q1
www.ti.com
SLOS842 – SEPTEMBER 2013
PCB LAYOUT RECOMMENDATIONS
Below are a few layout recommendations to utilize when designing a PCB for the DRV8301-Q1.
2
2
1
6/7
6/7
5
4
3
XX
1. The DRV8301-Q1 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).
2. C1/C2/C8/C9, PVDD decoupling capacitors should be placed close to their corresponding pins with a low
impedance path to device GND (PowerPAD).
3. C4, GVDD capacitor should be placed close its corresponding pin with a low impedance path to device GND
(PowerPAD).
4. C16/C17, AVDD & DVDD capacitors should be placed close to their corresponding pins with a low
impedance path to the AGND pin. It’s preferable to make this connection on the same layer.
5. AGND should be tied to device GND (PowerPAD) through a low impedance trace/copper fill.
6. Add stitching vias to reduce the impedance of the GND path from the top to bottom side.
7. Try to clear the space around and underneath the DRV8301-Q1 to allow for better heat spreading from the
PowerPAD.
DESIGNATOR
C1
C2
C8
C9
C4
C16
C17
Table 11. Recommended Values
PIN
PVDD1 – pin 29
PVDD1 – pin 29
PVDD2 – pins 53 & 54
PVDD2 – pins 53 & 54
GVDD – pin 13
AVDD – pin 27
DVDD – pin 23
RECOMMENDED VALUE
2.2uF
0.1uF
2.2uF
0.1uF
2.2uF
1.0uF
1.0uF
DESCRIPTION
CAP CER 2.2UF 100V 10% X7R
CAP CER 0.1UF 100V 10% X7R
CAP CER 2.2UF 100V 10% X7R
CAP CER 0.1UF 100V 10% X7R
CAP CER 2.2UF 25V 10% X7R
CAP CER 1UF 25V 10% X7R
CAP CER 1UF 25V 10% X7R
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