Hello,
I found this device on your website and was told it is not available for purchase. www.ti.com/.../tidu755.pdf
Are their any measurement devices similar to the tidu755 device listed above? I am developing a solar inverter prototype, and looking for a measurement device to interface with a DSP board and monitor AC voltage and Current and also DC voltage up to 1000VDC.
Please Help
Thank you
Thank you!
That information would be very helpful in the datasheet.
But I need higher, not lower currents. So, what should I do? Do I boost the DRV8871 output to my needed values or is there any IC that supplies my motor properly?
Part Number: DRV8871
Hello there!
I'm currently working on a battle robot's motors control and I was thinking of using the DRV8871. But, since the motor we chose for the robot (a beetleweight, 1.36kg) has a stall current of 5.6A and probably peak currents that far exceed such value, the DRV8871 isn't able to properly supply it.
Therefore, I'd like to know: is there any equivalent IC to the DRV8871 that supplies higher currents or should I amplify my current signal?
Thank you all in advance!
Part Number: DRV8835
Hi,
Could you please tell me "Rds(on) vs VM" about the following condition when supplying 3V to VCC ?
I have already filled it in for 3V@VM which is mentioned in DRV8835 data sheet.
Best regards,
Kato
hello sir,
thanks for your quick response.
sir right now i dont have any sense resistor connected to my motor,
and when my config pin is high,i have driver in mode32,config pin i have made high by giving 3.2v,
i have attached screen shot of motor's specification.
when change motor's frequency i observed that motor i not moving and it is just vibrating on same position.
i want to vary the speed of motor.
please reply me.
thanks
Part Number: DRV10983EVM
Hi Team,
The customer is using DRV10983EVM.
First, he connects the 2 pin to the 1 pin for J2
Second, he rotates R14 counterclockwise to the end.
Third, once he powers on the EVM board, the motor automatically starts to rotate. Then if the customer rotates R14 clockwise, the speed will increase.
If he removes the short hood for the J2 and keeps the J2 floating, the speed remains the same. If he removes the short hood for the J1, the motor will
stop first, then it will rotate in the opposite direction.
Fourth, he cannot connect the EVM board to the GUI software properly. The computer shows some information. Please check the attachment.
Q1: How to solve the third and the fourth issues?
Q2: How to operate the EVM board correctly?
Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments
Hello Kevin,
This is strange. I haven't seen this kind of behavior before. When switching from Peak to Hold it is common for the PWM cycle to reach the minimum 7.5%, but it will continue to PWM.
Could you please share your schematic with me? You can send it to me in a private message if it contains information you don't want to share it here.
Part Number: DRV110
I am seeing about 30ms of 'off' time between my peak value and my hold value. The drive output (OUT pin) apparently turns off completely why the solenoid current decays, but the solenoid current continues to decay below the hold value and is below the hold set point for ~20ms before the output resumes PWMing and getting the current up to the hold level. It is as if the internal MUX switching between the 2 references has some dead time, or there is a period (20-30ms) where the reference is ~ 0. Because this seems strange, I replaced the IC, but observed the same results.
Yellow is mosfet drain, magenta is coil current ( measured with current probe)
