Part Number: DRV8870 Hi team,
1) What are the differences between coast and brake (fast current decay versus slow decay) and the pros and cons?
coast (00) fast current decay
brake(11)Brake; low-side slow decay
2) Normal operating current is 120mA, hardware…
Unfortunately, we haven't been able to fix the problem yet.
The V_dc supply voltage is approximately DC 43V. Since it is supplied through a transformer, what problems can it cause if the power is supplied over 45V?
I purchase new parts and produce…
Part Number: DRV8870 Hello,
My customer is testing the motor operation using the DRV8870.
When VREF 3.3V and RINSE 0.15R, they confirmed that the current of the motor was limited to 2.2A, and it continued to operate through retry.
If there is a product…
Part Number: DRV8870 Hi team,
my customer find that the negative voltage ratings will exceed the maximum rating (-0.7V) . The minimum voltage is -0.9V and last for about 100ns.
Will it damage our products and do u have any advice to reduce the minimum…
Part Number: DRV8870 Hello,
My customer is considering using the DRV8870 for DC motor control.
Input power 24V, estimated current consumption is 1A.
They assume that when controlling a DC motor (converting from CW to CCW or Pause), a reverse current will…
Part Number: DRV8870 Hi team,
Issue: the VM pins are burned out at use.
On the script, VREF is 5V, current limiting resistor is 0.2ohm, VM voltage is 24V. The output PWM signal is transmitted as a signal and is not used as a drive motor with a load current…
Part Number: DRV8870 Other Parts Discussed in Thread: DRV8770 DR8870 does not have an emergency stop function, the impact force is too large when the motor is stopped in an emergency, the full-bridge circuit used in the past, controlled by the SD foot…
Hi Pablo,
Pablo Armet said: I will close this ticket since it seems the issues was probably caused by overheating on the IC pins. If you observe the same issue on another IC, you can submit a new question. chenzhuang said: If there is a specific soldering…
Part Number: DRV8850 Other Parts Discussed in Thread: DRV8870 , Hi Ti experts,
Why does DRV8850 have 4x input pin to control H bridge. Correspondingly, the DRV8870 has only 2x input.
What are the application scenarios of the four inputs.
In DRV8850 datasheet…