Hi I am an electrical-electronics enginerring student and I am currently trying to design a 15W wireless power transportation solution using P9242-R chip. I followed the datasheet to draw the schematic of most of the circuit. But I came accross some parts that I don’t really understand how it works and whether if I should put it in my design or not.
The pins 25-29 are reserved and it is advised not to connect them in “Table 1. Pin Descriptions” in 6th page. But they are connected to a NOR Flash component. The capacitance and resistance values are not given too.
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As I understand, there are mainly three versions of this IC: P9242-RNDGI8, P9242-R3NDGI8 and P9242-RBNDGI8. P9242-R3NDGI8 comes with application firmware and P9242-RBNDGI8 doesn’t. But what about P9242-RNDGI8? Because it is the only version that I found avaliable to order.
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As I understand, the flash component is required for only the versions without the application firmware. If P9242-RNDGI8 comes without the firmware how can it be programmed, using which tools and are there any guides for that?
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About the EN’ which is the first pin, should I just connect it to the ground to keep the IC running all the time or is it needs to be connected to another controller chip? Whith its object detection capabilities I think it wouldn’t cause much inefficiency to connect this pin directly to the ground but I am not sure.
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To set the LED pattern and Enabling/Disabling the Q-factor Detection for FOD the resistor values are given in a table (Table 9. page 18). I don’t really understand “LED/Q-Fact Pin Voltage” What should I consider while choosing an option and what does it mean to have pull-up and pull-down voltages in there? The same thing goes for the information given in Table 6. in page 15 I don’t know which treshold value to choose.
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What is the programming connector is for if the chip comes with its own application firmware and if it doesn’t do I need to use these ports to program it?
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Lastly, are there any possible ways to simulate the chip before buying it?
I tried to ask these questions in Renesas’s Tech Forum and didn’t get much from it. Then tried to contact technical support team by submitting a ticket but they suggested me to contact with a distributor. Therefore here I am.
Thank you for your attention.