Part Number:DRV8353R
I made 5V(VDD5) and 3.3V(VDD_3V3) power by external power and didn't use internal buck from DRV8353RS.
I expected VCP turned on when ENABLE went to rise without spi communication.
However, VCP weren't enabled and in addition NFAULT was reserved high.
I don't understand the power on procedure of VCP.
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Part Number:DRV8873-Q1
Hi,
My design uses the DRV8873-Q1 (SPI Interface).
I am using the PWM control method to control the speed of the motor.
By changing IN2 input to High or Low while IN1 input = Low
PWM control is performed. In this case, motor rotation stops when the duty of IN2 is about 50%.
I want to drive the motor with lower duty.
Ask for help.
Part Number:DRV10963
Hi all
Would you mind if we ask DRV10963?
There is the description fFG_max (Hz) = 1300Hz on the datasheet P19.
->Therefore, is fFG_max (Hz) = 1300Hz fixed value? Is it possible to configure fFG_max (Hz) = 2000Hz?
We would like to know the content what fFG_max (Hz) depends on.
Kind regards,
Hirotaka Matsumoto
Part Number:DRV8308EVM
Hi,
i want spin my motor with closed loop. Speed range is 100 - 1400 rpm.
Start always with load at 100rpm.
The low starting speed is my problem.
The lowest start speed with closed loop i can realize is ~500rpm.
The Motor does not react if i choose a speed below 500rpm
My Motor: (4 Poles-Motor)
I use your TI development tool run the motor
this are the register-settings:
Speed change over a external CLK from function generator.
Is it possible to run such kind of motor at closed loop with 100rpm with the DRV8308 at all?
Can you check the Registers... maybe i missed something.
Best Regards
Michael M.
Part Number:DRV8703D-Q1
what is the advantage and inconvinent for using a full-bridge or two of a half-bridge
Part Number:DRV2605
Hi Haptics team
I would like to have information on drivers for LRA.
We are building a protoype of a device for haptics using DRV2605 as a driver for LRA. The built-in library already includes predefined haptic waveforms which gives certain vibration effects.
My question is with this motor drvier, is it possible to create separate set of waveforms which has vibration effects other than the ones predefined. I am working with ESP32 board from Espressif Systems.
If you have any information then please let me know. Thank you.
Hi,
We have successfully implemented a small motordriver capable of 100A 50V based on the low voltage EVM design. This is working all as expected and we are running short trial production batches of oit now.
However due to our own demand of a higher power higher voltage driver we have begun thinking about a driver that can meet our needs.
Basicly, our needs are mainly ultra high efficiency, prior to low cost, so we are investigating GaN for the switching part. The motors are also our own design and are generally lower inductance low resistance BLDC:s. The challenge is that we also need to keep the overall size down as much as possible. Our driver shall manage up to 650V and 100A. So here are the questions;
Best regards,
Mikael
Part Number:DRV777
I am needing to drive a 12V unipolar stepper motor. The datahseet states that the COM voltage is recommended at max 16V, but Figure 4 on Page 7 illustrates an example of driving a unipolar stepper motor suggested a voltage no higher than 8V on the COM. Could I get some clarification on the ambiguity.
Part Number:DRV8711
Dear TI Experts,
My customer is testing DRV8711 in a outdoor controlling system. They tested 8pcs prototypes, everything works fine in room temperature.
However, when in low temperature(-20 degrees), there are several warning register bit are set in 3 samples out of 8pcs ( STDLAT /UVLO / BPDF bits of STATUS register ).
Gererally speaking, this will happen after 1~2 days continuous working, they can use host command to clear these bits and recover normal work, and after another 1~2 days, these bits will set again.
Could you kindly help to give some advices about this issue? Thanks a lot.
Part Number:DRV8803
Hi team,
The customer is currently using UNL2003AN to drive three solenoids at simultaneous operation. However, they would like to drive more than three solenoids in future. In that case, do you have any recommended parts of your solenoid drivers compering to the transistor array device like UNL2003AN or TBD62064APG? Load voltage is 12V and target price is around $0.2.
Regards,
Jun
Part Number:DRV8832
Hi,
Our customer are evaluating the DRV8832.
Please let me know if there are any problems with the circuit design.
Motor start-up current: 457mA typ
Over load (Lock) current: 1.3A
Rshunt: 0.15 Ω (200mV/0.15 = 1.33A)
VDD: 4.3 V
VSET: 3.12V
According to D/S, "Continuous motor drive output current" is 1A.
Should the current limit be lowered?
On the other hands,I understand that "Peak motor drive output current" is a specification of instantaneous current.
I think this design is not a problem if this specification is considered.
Please give me advice as one of the 20 prototype circuits may have destroyed the IC by EOS.
The cause is unknown.
After power-up, as soon as IN1 or IN2 is set to Hi, Fault is asserted.
The other 19 work fine.
Best regards,
Hiroshi
Part Number:TPIC2060A
Hi, Team,
My cusotomer is using TPIC20060A and I have basic questions. They would like to decrease the peak current of P5V pin.
-Could you please let me know the reason of of the current?
-Is there any way to reduce 5V peak current?
Best Regards,
Satoshi Yone
I am looking for a MOSFET Full H-bridge Driver IC for driving motor rated upto 20V, 10A.
Part Number:DRV8703-Q1
Dear all,
one of my AA is using the DRV8703-Q1 to drive a motor. Everything works fine at room and hot temperature, but at -40degC the DRV8703-Q1 goes in VDS fault condition.
It could be related to the MOSFET, but even removing the VDS monitor feature the device acts as it is enabled and stops working.
Is this expected ?
Have you never seen similar behavior?
Any suggestion ?
regards,
Domenico
Part Number:DRV8308
Hi,
I'm also working with a Maxon motor and I have a problem with current. One of the suggestions was to change the Risense. So I would like to know how can I change the Risense resistor from the EVM?.
Thanks.
Part Number:DRV2625
Hi, Team,
My customer is evaluating DRV2625. They would like to output constant voltage. Is it possible to output constant voltage? If yes, could you please let me know how to do that?
The customer is using the following configuration.
0x07 0x48 MODE=RTP
0x08 0x48 ERM, Open Loop
0x1F 0x8F RATED_VOLTAGE
0x20 0x99 OD_CLAMP
Best Regards,
Sastoshi Yone
1. Which type of Transformer is used in the above circuit?
2. Inductor value ??
3. Which type of opto coupler is used?
Part Number:DRV8876
Hello Team,
what is the Bandwidth of the signal coming out of the IPROPI pin?
Thanks,
SunSet
