Part Number: DRV8889-Q1
Hello expert,
1. In high input voltage(13.5V) and low switch step frequency(635Hz) the Io waveform is OK.
2. reduce the Vin to 9V and keep the step frequency 635Hz,the waveform keep ok
3. But there is some issue in 9V and fast step frequency(1.18KHz).What is the impact on the function?
It seem that the Vin x Ton must be enough to ensure the inductor current rise/fall on time and than ensure the step moving,but how can we define the SOA?
