Part Number: DRV8871 hi all,
i use in my design DRV8871 and sample an overshoots on the IN1 and IN2 pins in the moment that i connect the supply (all other pins are unconnected).
how it is possible? some has an idea?
BR,
Itzi
Thank you very much Ryan. In my case, I am using Adafruit DRV8871 (which uses the TI driver DRV8871). I think that pin "PGND" and "GND" are already internally connected in the breakout board, as per this schematic (available here )…
Hello Sherry,
1. I think so, but the customer needs to try and confirm.
2. The 0.5 ohm shunt resistor should support up to 1.4 A output current. We want to keep the voltage across GND to PGND above -0.7 V to avoid current flowing back through the FET…
Part Number: DRV8871 Other Parts Discussed in Thread: DRV8876
The way to measure load current: we insert high precision 1 ohm resistor between PGND pin and PCB ground。Then we amplifier the voltage signal across 1 ohm res and measure it by ADC.
The issue…
Part Number: DRV8871 Other Parts Discussed in Thread: DRV8210EVM , DRV8251A
The way to measure load current: we insert high precision 1 ohm resistor between PGND pin and PCB ground。Then we amplifier the voltage signal across 1 ohm res and measure it…
Part Number: DRV8871 Other Parts Discussed in Thread: DRV8870 , DRV8872 Hi,
Because of the supply problem, I consider replacing DRV8871 with DRV8870 in mass production. Discarding the IChip feature is acceptable. I wonder if it's theoretically feasible…
Part Number: DRV8871 Hey team,
Just wondering if we had a recommended wattage for the resistor on ILim? Trying to figure out if a customer should use a 402 or 201 sized resistor.
Thanks,
Cam
Part Number: DRV8871-Q1 Other Parts Discussed in Thread: DRV8871 , DRV8872 I have developed a board that is intended to drive different types of motors. One application is a "smart" servo motor which has an integrated controller and an RC (PWM) interface…
Part Number: DRV8871 Hi there,
I currently designed a motor controller with the MC33926 controller for a dc brushed motor. after implementing this controller we noticed current spikes from the initial movements for the motor (as expected) and then implemented…
Part Number: DRV8872 Other Parts Discussed in Thread: DRV8871 , DRV8873 hi,
customer used to use DRV8871, now they want to P2P change to DRV8872? is there any concern or points for that?
I checked the pin definition and find the pin4 and pin7 is different…
