Dear NXP Engineers,
Greetings,
Our company is considering using the MC33PT2000AF chip for 'current closed loop' control of solenoid valves. In this regard, I have consulted the 'MC33PT2000' and 'KTPT2000FRDM6CUG' technical documents for reference. However, there are certain discrepancies between the two documents that have not resolved my confusion:
1.In the application scenario of 6cylinder3bank, there are six components—'C_MHS1, C_MHS2, C_MLS1, C_MLS2' and 'R_GSHS1, R_GSHS2'—present in the schematic of the kit board that are not found in the 'recommended applications' section of the datasheet. What role do these components play in the circuit? Can they be omitted?
2.The kit board's documentation only describes the driving capabilities of the MC33PT2000. Can we utilize the full functionality of the chip as described using the kit board?
3.If I do not have a fuel pump and the Vboost is generated by another voltage chip, do I still need to draw the schematic for the fuel pump and the DC-DC block, and connect the generated Vboost voltage to the Vboost pin?
Thank you very much for your assistance.
Doublemit
December 21, 2023
