SLUSDC0D October 2018 – November 2024 UCC21530
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Setting the EN pin low, that is VEN ≤ 0.8V, shuts down both outputs simultaneously. Pull the EN pin high (or left open), that is VEN ≥ 2.0V, allows UCC21530 to operate normally. The EN pin is quite responsive, as far as propagation delay and other switching parameters are concerned, the delay between EN are OUTA and OUTB is about 40ns. The EN pin is only functional (and necessary) when VCCI stays above the UVLO threshold. It is highly recommended to tie EN to VCCI directly to achieve better noise immunity.