Other Parts Discussed in Thread: DRV8662, ,
Hello,
I could not find any information related to safety and isolation of the DRV2700 chip or its equivalent the DRV8662. We have been working so far with the DRV2700EVM-HV500 modified to generate up to 1kV in flyback configuration as the DRV2700 datasheet indicates with successful results. We are considering to deploy the chip with an automotive partner in an automotive application to generate up to 1kV and max 5Hz @2 mA max waveform to drive a capacitive based actuator. The advantage of the built in boost converter simplifies the turn ratio needed at the transformer side as our Vin would be between 5-12V otherwise we would consider cascading a flyback controller with a boost converter to get back to reasonable transformer selection. In case you have any recommendation there, please let us know as cost efficiency is also key...
We are currently reviewing elements related to safety but could not find in the datasheets of neither the DRV2700, the DRV8662 nor the HV EVM of the 2700 related to that. What considerations shall we additionally pay attention to in our case ? The blocks within the DRV2700 or 8662 are not isolated from both Vin and Vout sides is that correct ? Is there any recommendation whatsoever in that regard ? We have not seen any particular isolation on the EVM-HV neither from the schematic nor the layout (common ground, no optocouplers...), does that imply the chip playing a more significant role in that regard ?
Finally, we also came across the haptics application which encourages the use of the 8662 in automotive haptics applications with upcoming automotive certification. What is the status on that ? Is there any other sales channel we can reach out to discuss our volumes and application ?
Thanks in advance
