Part Number: DRV8307
Would someone mind reviewing the attached RevB schematic and gerbers for this updated Motor Driver Board?
My issue with this revision: I need to drive the motor at 5000 RPM, but the driver board seems to be maxing out at around…
Other Parts Discussed in Thread: DRV8307 Hi,
We are using DRV8307 Brushless DC Motor Controller in our design.
VM Supply is 13V, We are observing two occasions where nFAULT signal is getting asserted. Please let us know the reason for this behaviour…
Part Number: DRV8307 Hi,
I'm beginner for motor driver, and have a problem with using TI's DRV8307
The symptom is as below.
-> when repeat start and stop in turn, discover the symptom that do not start.
: The motor emits a high requencty sound…
Thanks for the spacing info.
I'm absolutely sure I have the phases and halls connected correctly. Just for kicks, I went through all the combinations just in case; none of them worked on the DRV8307.
By my calcs my 4-pole motor should have halls spaced…
Other Parts Discussed in Thread: DRV8307 , DRV8301 HI
I have some question about PWM of DRV8307.
1. PWM duty cycle range (datasheet: 0~100%)
what is minimum duty for stop? and maximum duty(recommended condition)?
2. datasheet:
If it is changed…
Many thanks for your prompt reply. I have two more questions:
- When does the DRV8307 come out of a LOCK state? Is it when the frequency drops below 2Hz - 12.5% or is it something else (additional criteria)?
- What is the preset value of MOD120 register…
Other Parts Discussed in Thread: DRV8308EVM , DRV8307 , DRV8308 Is there any way of preventing the DRV8307 from switching to single Hall commutation? I have an application for a reciprocating pump that causes the speed to vary cyclically, and the motor…
Hi Shimizu-san,
Apologize for the delay. The normal or inverse modes on the EVM are to allow for different types of Hall Senor inputs. Some Hall ICs are active low when a north pole is present in front of the package, others are active low when a…
Hi Eric,
Thanks for the information. Please let us know what the VM voltage with respect to ground at the device pin is.
If you have scope captures of the voltage as the device is running, it would be very helpful. If you can, set the scope to capture…
