Hello,
I have a question for TIDA-00284 Reference Design with DRV110.
As my understanding, the resistor connected to HOLD pin of DRV110 used to set I HOLD current, and the equation is 150mV/R SENSE for 33.3k<R HOLD<66.6k. Because R HOLD is 51.1k and R SENSE is 4 in this design, I think I HOLD will be 37.5mA by equation. But design says I HOLD is 50mA, and graph in design shows 50mA, too.
I PEAK is also similar. R PEAK is 51.1k, and I PEAK will be 225mA by equation in datasheet. But design says I PEAK is 200mA without explanation.
In other TI Reference Design, DC24V solenoid driver with DRV110 (TIDA-00289), R PEAK and R HOLD is same to result of equation, so I'm confused. Is TIDA-00284's resistor value is just an error, or uses other equations to decide values?