Hi Supriya,
Could you please provide the answers to the following questions so we are better able to understand this issue?
1) Are the FETs being configured for high-side or low-side?
2) Are you receiving any faults while operating?
3) After the CSD18542KCS…
Part Number: DRV8701 Dear teams,
Recently, one of our DRV8701 chips failed, and the four gate output control voltages were abnormal.
The phenomenon is that the output voltage without load is normal, and the load ON the chip will stop at once, reporting…
Part Number: DRV8701 Is there a way of delaying (or blanking) the overcurrent detection for a predictable amount of time? I would like to allow for a turn-on surge before starting current chopping.
Part Number: DRV8701 I have a brush motor driver based a DRV8701E and want to use MCU generated PWM to ramp up the motor. It looks like the internal chop frequency is ~37kHz (1/(toff + tblank)). What would be a practical upper limit for the external PWM…
Hey Owen,
Thanks for the video, I see the fluctuation you mean. I agree with Ryan's above answer that this small amount of variation is probably normal/unavoidable with this part. The DRV8701 is one of our first ever motor driver gate driver, and we…
Part Number: DRV8701
Hi TI,
I can find the PSpice Model for DRV8701 E , but for my application DRV8701 P PSpice Model is required. Can you provide the Model?
Thank you.
Part Number: DRV8701 Hi team, I made a motor driver which is almost identical to the reference design. (see schematics) The circuit works fine except it's quiescent current is much more than expected. Quiescent current was determined by subtracting…
Hey Cherry,
Can you confirm they have the recommended 0.1uF charge pump capacitor between CPH and CPL? Incorrect charge pump value could cause the driver to not be able to maintain 100% duty cycle
Cherry Zhou said: They don't have EVM so are not able to…
Part Number: DRV8701 Hello TI Technical Forum community,
I hope you are all doing well. I would like to seek your expert advice and insights regarding the use of the DRV8701 motor driver IC from Texas Instruments for a medical-related development project…
Part Number: DRV8701
Hi,
I have no intention of monitoring the nFault and SNSOUT pins.
The datasheet says "VCC supply voltage pullup is required for open-drain outputs nFAULT and SNSOUT". Is this just a hint if we are monitoring them or is it required…