DRV10866_15 Datasheet, PDF (11/22 Pages) Texas Instruments – 5V, 3Phase, Sensorless BLDC Motor Driver

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DRV10866
SBVS206A – NOVEMBER 2012 – REVISED MARCH 2015
8.2.2 Detailed Design Procedure
• Refer to the Design Requirements and ensure the system meets the recommended application range.
– Ensure the VCC level is in between 1.6 and 5.5 V
– Verify the motor needs no more than 500 mA during runtime.
• Follow the application and Power Supply Recommendations when constructing the schematic.
– Make sure there is adequate capacitance on VCC.
– Size the resistor on CS according to the details given in Feature Description.
– Use a pullup on FG.
– If the motor doesn’t have a common pin, create one using the method listed in Application Information.
• Build the hardware according to the Layout Guidelines.
• Test the system with the application's motor to verify proper operation.
8.2.3 Application Curves
Figure 5. Normal Operation With Vcom at 5 V
Figure 6. Normal Operation With Vcom at 1.65 V
Figure 7. Normal Operation With 3-Phase Voltage and
ph-A Current at 5 V
Figure 8. Normal Operation With 3-Phase Voltage and
ph-A Current at 1.65 V
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