Hi,
I wish to make a MPPT module with the SM72442 SolarMagic IC and the driver SM72295.
For my tests, my PV solar panel gives a output voltage up to 22 V (P = 50 Wc and Isc = 3,2 A)
I want 15 V DC on the MPPT module output
I've already bought these components. I looked for the technical documentation and I found the application note AN-2124 for SM3320. and the application note AN-2122 for SM3320-RF-EV. I downloaded the technical documentation RD-190 for this SolarMagic Eval Board.
My fisrt question : They use an external amplifier for IOUT (around LMP7717MF). Can I use the internal amplifier of the SM72295 by connecting Rsense with SIB and SOB pins instead of this solution ?
Second question : By program, it is possible to read IOUT with SM72442 (BOUT of SM72295 connected to AIOUT of SM72442) and then control the PM OUTPUT to obtain the Panel Mode (PM_OUT is connected to the driver SM72482).
Third question : Rsense for IOUT (Rsen_out) is connected to low side (between VOUT- and GND). It is possible to place this Rsense in high side position between the Drains of N-MOSFET (Q2) and the cathode of D1 placed on the output (I make reference to the SM3320-RF-EV schematic - sheet 1/3, page 1 of SM72295 datasheet and page 2 of SM72242 datasheet).
Thanks for your help. This project is very important for me.
Joel