Part Number: DRV8830 Other Parts Discussed in Thread: DRV8850 Colleagues,
I’m designing a circuit which will drive a small BDC (brushed DC) motor. The motor needs to turn only in one direction. The stall current is 1.5 A, and the nominal running…
Part Number: DRV8830 In the data sheet for the DRV8830, the maximum current limit sense resistor is listed as 1 ohm. Is this because the accuracy of the current limit will be out of spec with higher resistance and lower current? Or because of minimum…
Part Number: DRV8830 Based on the spec sheet, the I2C lines require over 50% of VCC for input high, so in a 3.3V system with 4 batteries for the main supply (assume 6.8V max), level translation would be required on the I2C lines between the microcontroller…
Part Number: DRV8830 I've read the datasheet and cannot see anything about how often the driver will respond to updates. Is it 10Hz? 100Hz?
How often can it change the output power?
Hope my question is clear. Thanks.
Hi Suraj,
Suraj Shelake said: 4. Current consumption : In normal motor operation: 150mA. Stall Current: 240mA. RSense resistor used in the board is: 0.22OHM
If the desired stall current is 240mA, then the Rsense should be 0.83 Ohms instead of 0.22 as you…
Part Number: DRV8830 Other Parts Discussed in Thread: DRV8837 In the datasheet of DRV8830 there are some graphs of the motor current when using internal PWM to reduce the average voltage of the motor to 4V. The graph in question is Figure 16, paragraph…
Part Number: DRV8830 Hi team,
My customer is evaluating DRV8830 in brushless motor application. Whether it is suitable for it, or any other suitable solution. Thanks.
Part Number: DRV8830
Hello,
In the datasheet of the IC in question (DRV8830) we have section 7.3.3, specifically bellow quoted paragraph which describes the driver behaviour during a stall event.
If the current limit condition persists for some time…
Part Number: DRV8830 Hi.
We use the motor driver DRV8830DGQ in some of our projects, but now we need obtain the ISO 13849-1_2015, so, if you can comment the features about safety that this component has to help us to obtain that ISO, would be great.
…