Subject: Support Request for Current Sensing Calculation with VN9D5D20FN

Hi, 

I am currently working with the VN9D5D20FN and RL78, successfully controlling 4 channels at a 100% duty cycle, achieving a 12V output. Now trying to read the current sense value for Channel 1 with OUTCFGR1 configured to 0x9FE0 and a rheostat load applied. I've readed the ADC values from the ADC1SR register and measured current consumption with a clamp meter.

Could you please assist me with the following:

1. How should I calculate the current value from the ADC1SR?
2. What is the K value in the Iout_conv formula for each channel?

Here are the ADC readings I have:

• ADC1SR = 0x0019 --> Current Value = ?
• ADC1SR = 0x001B --> Current Value = ?
• ADC1SR = 0x011C --> Current Value = ?
• ADC1SR = 0x021A --> Current Value = ?

Thanks and Regards,

Vennila