JAJSLR1B April 2022 – June 2024 UCC21717-Q1
PRODUCTION DATA
Both FLT and RDY pins are open-drain outputs. The RST/EN pin has a 50-kΩ internal pulldown resistor, so the driver is in OFF status if the RST/EN pin is not pulled up externally. A 5-kΩ resistor can be used as pullup resistor for the FLT, RDY, and RST/EN pins.
To improve the noise immunity due to the parasitic coupling and common-mode noise, low-pass filters can be added between the FLT, RDY, and RST/EN pins and the microcontroller. A filter capacitor between 100 pF to 300 pF can be added.