TIDUF22 January 2023
LMG3522R030 reports its temperature at the TEMP pin in pulse-width modulation (PWM) mode. An Enhanced Capture (eCAP) module in the TMS320F280025C is configured to monitor this PWM signal. Software captures this ratio, and determines the GaN overtemperature protection. In this design, PFC stops for GaN overtemperature at 125°C.