Part Number: DRV8874-Q1 Other Parts Discussed in Thread: DRV8874 Hello Team, one question from customer:
Is the charge pump active when OUT1 and OUT2 are tri-state (means in-acitvie) ?
Many Thanks
Josef
Part Number: DRV8874 Hi Team,
Using the current sampling inside the chip is not accurate. For example, when using en/ph mode, the actual current of the motor during movement is 60mA, while the current of the iPropi pin of the reading chip is 120mA. The…
Part Number: DRV8874 Hi Team,
The customer made the design with reference to the datasheet. The motor current decreasing slope is about 0.87A/ms. If it is necessary to reduce the slope to 0.15A/ms, is it feasible? How to modify the configuration?
Regards…
Part Number: DRV8874 Dear TI experts,
My customer considers DRV8874 for their new product.
In the EVM, there is C1 capacitor, 100uF/50V aluminium capacitor.
Is it okay to change C1 to MLCC? If yes, what is the recommended value for C1?
Please check this…
Part Number: DRV8874-Q1 Other Parts Discussed in Thread: DRV8874 Baed on the model DRV8874 PSpice Transient Simulation (Rev. A): www.ti.com/.../slvmcx0 - The device configuration: PMODE = 0 and IMODE = 0;
- Load connected between OUT 1 and OUT 2 (full bridge…
Part Number: DRV8874 Hello Sir:
Please refer our tested report as below.
DRV8874 debug.pdf
That includes our schematic, PCBA and tested waveform.
Please refer e and f figure, we found the PMODE is not stable.
But according our schematic, our PMODE pin…
Part Number: DRV8874 Other Parts Discussed in Thread: DRV8701 , Hi Team,
Q1: Customer used DRV8874. The actual current of the motor is only 60mA, but the read current is 120mA. May I ask what causes it? The same current read by DRV8701 is correct, AIPROPI…
Hey Fred,
Yeah your analogy is good of house fuse vs circuit breaker. The protection circuit (OCP) and Thermal Shutdown (TSD) are like your main breaker, and then Current Sense/Regulation is designed to be a lower, adjustable limit point that you can…
Hello Scott,
Scott Daniels said: Would this current limit difference cause it to trip into an overcurrent fault in imode 2, but not 1?
The only difference between the two modes is that IMODE2 has cycle-by-cycle current regulation and current regulation…