Part Number: DRV8412 When running at close to 50V, the opposite high-bridge turns on spontaneously and only turns off when the CBC limit kicks in. I've attached some scope screenshots; the top two traces are OUT_A, OUT_B on the DRV8412DDWEVM and the bottom…
Thanks for the info Chris.
Hi Nayeem,
As Chris pointed out, we have many devices that are designed for steppers and brushed motors. Can you provide your requirements (system voltage, motor current, desired current regulation, motor types and operation…
Part Number: DRV8412 Hello,
During an initial test of getting the device to a fault state, I noticed that the outputs do shut off but the fault pin does not go low.
After looking into this with an oscilloscope I saw that during the time it goes on the…
Hi Jovin,
Yes, this is possible. This is at the upper end of the current for the DRV8412, so thermal considerations should be taken into account.
There is a DRV8412DDWEVM available for evaluation.
Other Parts Discussed in Thread: DRV8412 , DRV8412DDWEVM Hi,
In the datasheet of the DRV8412, there is a small section about a low-pass LC filter. From the spec (p.18):
" For TEC driver or other non-motor related applications (e.g. resistive load or…
I anticipated your recommendation for learning Motorware. Fact is that I will eventually need a four half-bridge inverter. I prefer to modify a dev module before spinning a custom board. Recommendations?
To be clear, the DRV8412DDWEVM has no phase voltage…
Adrian,
Just so we are on the same page, there are two EVMs available for this device. Which one do you have?
DRV8412DDWEVM or DRV8412-C2-kit?
Also, what is the load you have connected and how are you driving the inputs?
Other Parts Discussed in Thread: DRV8412 , DRV8412DDWEVM , TMS320F28335 Hi there,
Here is my configuration. M0M1M2 = HHL, PWM_C is connected to C2000 MCU. PWM_D is connected to ground.
Duty cycle = 1/65535, motor spins at a speed of A.
Duty cycle ≈ 17000…
Other Parts Discussed in Thread: DRV8412DDWEVM , DRV8412
I started using DRV8412DDWEVM for driving a Brush Servo motor (with low current consumption ~0.6A). I’m working with 20KHz PWM, and the DRV8412DDWEVM is working fine when I give duty cycle up…