SLUSCC7C July 2016 – June 2018 TPS546C23
The READ_IOUT commands returns two bytes of data in the linear data format that represent the output current of the converter. The average output current is sensed according to the method described in Low-Side MOSFET Current Sensing and Overcurrent Protection. The data format is as shown below:
|Format||Linear, two's complement binary|
The device scales the output current before it reaches the internal analog to digital converter so that resolution of the output current read is 62.5 mA. The maximum value that can be reported is 40 A. The user must set the IOUT_CAL_OFFSET parameter correctly to obtain accurate results. Use Equation 13 to calculate the output current.