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Non-inverting MOSFET gate driver

TC4420 Working Principle

Learn how TC4420 works with an illustrated explanation and practical readings.

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TC4420 at a glance

Follow the labeled connections and functional stages

TC4420 working principle: illustrated functional stages, basic circuit and connections
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How it works

3 stages · Explore one step at a time

Step 1 / 3

Input and reference

A valid logic input selects the output state.

Step 2 / 3

Internal control

The driver sources gate charge to turn a low-side MOSFET on.

Step 3 / 3

Output behavior

It sinks gate charge to turn the MOSFET off quickly.

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