DRV8801RTYR datasheet by Texas Instruments

DRV8801RTYR Frequently Asked Questions (FAQs)

• What is the maximum voltage that can be applied to the VM pin?
  The maximum voltage that can be applied to the VM pin is 40V. However, it's recommended to keep it below 35V for reliable operation.
• How do I adjust the current limit of the DRV8801?
  The current limit of the DRV8801 can be adjusted by changing the value of the sense resistor (Rs) connected between the IS pin and ground. A smaller Rs value will result in a higher current limit.
• What is the purpose of the EN pin, and how do I use it?
  The EN (enable) pin is used to enable or disable the driver. When EN is high, the driver is enabled, and when EN is low, the driver is disabled. This pin can be used to implement a shutdown or standby mode in the system.
• How do I protect the DRV8801 from back-EMF when using inductive loads?
  To protect the DRV8801 from back-EMF when using inductive loads, a freewheeling diode (D1) should be connected in parallel with the load. This diode provides a path for the current to flow when the load is turned off, preventing the back-EMF from damaging the driver.
• What is the maximum frequency of operation for the DRV8801?
  The maximum frequency of operation for the DRV8801 is 100 kHz. However, the actual frequency of operation may be limited by the load and the system requirements.