SLAS955A March 2013 – July 2015 DRV10963
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.
DRV10963 is used in sensorless 3-phase BLDC motor control. The driver provides a high performance, high reliability, flexible and simple solution for compute fan applications. The following design shows a common application of the DRV10963.
Table 11 lists several key motor characteristics and recommended ranges which the DRV10963 is capable of driving. However, that does not necessarily mean motors outside these boundaries cannot be driven by DRV10963.
Recommended ranges listed in Table 11 can serve as a general guideline to quickly decide whether DRV10963 is a good fit for an application. Motor performance is not ensured for all uses.
|Rm (Ω)||Lm (µH)||Kt (mV/Hz)||fFG_max (Hz)|
|Recommended Value||2.5 ~ 36||50 ~ 10000||1 ~ 100||1300|
Rm - Motor phase resistance between phase to phase;
Lm - Motor phase to phase inductance between phase to phase;
Kt - Motor BEMF constant from phase to center tape;
fFG_max - Maximum electrical frequency. Maximum motor speed can be calculated from:
1. Refer to Design Requirements and make sure your system meets the recommended application range.
2. Refer to the DRV10963 Tuning Guide and measure the motor parameters.
3. Refer to the DRV10963 Tuning Guide. Configure the parameters using DRV10963 GUI, and optimize the motor operation. The Tuning Guide takes the user through all the configurations step by step, including: start-up operation, closed-loop operation, current control, initial positioning, lock detection, and anti-voltage surge.
4. Build your hardware based on Layout Guidelines.
5. Connect the device into system and validate your system solution