SLVS857B December 2009 – January 2015 DRV8808
PRODUCTION DATA.
NOTE
Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.
The DRV8808 provides an integrated motor driver solution. The chip has three H-bridges internally and is configurable to different settings by SPI communication.
To begin the design process, determine the following:
Output voltage is set by external feedback resister network. For example,
1.5-V Output : 1.0 KΩ and 2.0 KΩ
1.0-V Output : 0 Ω and 3.0 KΩ
3.3-V Output : 6.8 KΩ and 1.5 KΩ
DC-DC converters start up sequence is determined by CSELECT pin. See DC-DC Converters for details.
Other parameters are programmed through SPI.
Many parameters are set by SPI register setting. Ramp up device with nSLEEP = Low, then write setup registers through SPI.