Part Number: DRV2624 Hey Folks,
What drives this requirement internally and what is the effect of pulling these pins to 1.8V when VDD is disconnected?
Thanks!
Cameron
Hi Yaita-san,
1) This is possible , but not typical. There is likely a unique calibration case where the registers are updated when there is a fail, but the DIAG_RESULT value is what you should base your proceedings on. It is strongly recommended to pass…
Part Number: DRV2624 Other Parts Discussed in Thread: DRV2625 Dear TI experts,
My customer is looking for the haptic driver which can save vibration pattern.
I saw that DRV2624 has an internal memory. Does it can save the pattern so that we can use it…
Part Number: DRV2624-2625_DESIGN_TOOL Hi Team, My customer wants to download DRV2624-2625_DESIGN_TOOL however couldn't even if he clicked "Downloads" button. Could you support it? https://www.ti.com/tool/DRV2624-2625_DESIGN_TOOL Best Regards…
Hi Roy,
I think that these measurements do not cause any concern. the output waveform of DRV2624 is a switching square waveform with deadtime between cycles, so it will be tricky to measure the waveform and make it match exactly to the programmed values…
Hi Yaita-san,
The auto calibration relies on the back EMF from the actuator, so yes it will mitigate DRV2624 variation. If the back EMF from the actuator changes with temperature it will account for that as well.
Best regards, Jeff McPherson
Part Number: DRV2624 Hi Team,
I would like to ask about integrated RAM of DRV2624. 1) What is the state of integrated RAM after power on? Is it all "0" ? 2) I believe integrated RAM can't be reset to all "0" by asserting NRST pin. Is it…
Part Number: DRV2624 Hello TI experts,
My customer considers DRV2624 for their new product. Could you review the schematic?
- MOTOR_PWR is 3.0V.
- They will use DC motor. should we add additional schematic for back EMF?
Best regards,
Chase
Hi Dean,
the minimum comfortable impedance that we recommend is 8 ohm.
however, the threshold for overcurrent is 3.6Vdd into 4 ohm or slightly less than 900 mA. 2.5Vrms should be about 600 mA into 6 ohms. this shouldn't trip the over current protection…
Part Number: DRV2624 Hello:
My client is using DRV2624, The problem is that after F0 calibration, some machines will have long vibration + weak vibration after hard restart.
Under normal circumstances, the machine will not vibrate after manual calibration…