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UCC28C4X/UCC38C4X Application Questions

Other Parts Discussed in Thread: UCC38C44

(1) Concerning Figure 4 on page 9 of the UCC28C4X/UCC38C4X datasheet: What is the purpose of the resistor in between the COMP pin and the REF pin? What value (or range) is suggested for this resistor.

(2) Concerning Figure 4 on page 9 of the UCC28C4X/UCC38C4X datasheet: Is the gate pull-down/keep-off resistor required? This is the resistor between the gate of Q1 and ground.