JAJSMY4 September 2021 UCC14240-Q1
The UCC14240-Q1 module is designed to allow a microcontroller host to enable it with the ENA pin for proper system sequencing. The /PG output also allows the host to monitor the status of the module. The /PG pin goes low when there are no faults and the output voltage is within ±10% of the set target output voltage. The output voltage is meant to power a gate driver for either IGBT or SiC FET power device. The host can start sending PWM control to the gate driver after the /PG pin goes low to ensure proper sequencing. Shown below is the system diagram for the dual-output configuration and a system diagram for the single output configuration.