In all example circuits for the LM5041 a bridge driver with independent inputs is used.
From the block diagram it would seem the LD output is simply an inversion of the HD output without any other logic (such as dead time control) employed.
Is there any reason not to use a bridge driver with a single input such as the LM5106?
Hello Nick,
It is not recommended to use a single input driver with controllers such as LM5041 that generates both High side and low side drive because the duration of these drives determines the duty cycle of the controller, also HD and LD will not be ON at the same time and this ON duration is determined by the controller internally.
If you use a single input driver (LM5016) then to start with you will need two drivers with both HD and LD. Then you will need an external circuit to make sure that the duty cycle is met and the drivers synchronize. Also, you will be basically doing the same thing externally which the controller is doing internally.
I hope this answers your question.
I have also attached an Application note on how to configure LM5041.
Please hit Answered if your query has been solved.
Kind Regards,
Sonal
