SLVUB50C June 2017 – March 2019 UCD90120A , UCD90124A , UCD90160 , UCD90160A , UCD90240 , UCD90320 , UCD90320U , UCD9090 , UCD9090-Q1 , UCD9090A , UCD90910
It is a good design practice to provide a series impedance of 20 Ω to 33 Ω at the signal source to slow fast digital edges and route FPWM signals away from sensitive analog signals when they are used for fan control or margining function. Consult Design Voltage Margining Circuit for UCD90xxx Power Sequencer and System Manager (SLVA845) for margining circuit design and UCD90xxx Voltage Margining Circuit Design Tool (SLVC676).