Hi,
Thanks for the info. I’ve had a look at the datasheet for HR1002a and it looks to be a pin-compatible part. HR1002a does have a pulled pin between high and low side drive, but that should not be an issue for production.
The only major difference for us would be the OCP function. On HR1001a this is self-resetting, on HR1002a this is a latched function. This is generally not desirable in audio systems, so for now we’ll just continue on with the HR1001a, this chip seems to have all the bells and whistles I would like for a voltage/frequency mode LLC controller.