Question:
A customer was using the MAX20090 where the D_MAX was less than 0.5. The RCS_FET value was small and the RSLOPE_COMP was negative due to the negative slope compensation value.
A resistor is recommended for for RCS_FET and RSLOPE_COMP. How should this negative slope compensation resistor be implemented in the design?
Answer:
For the negative value of the slope compensation, that indicates that slope compensation is not necessary. It is recommended to use a 0 Ohm resistor for RSLOPE_COMP in case there are potential jitter issues and thereby add some slope compensation to help in noise reduction.