BETAPIN 1 · Supply
SupplyVDD
Function
Driver supply
How to connect
Join pin 8 to +12 V in the example; decouple locally.
Non-inverting MOSFET gate driver
TC4420 Pinout
Explore TC4420 pins, signal names, electrical functions and connection guidance for each package.
Package view
8Physical pins
TC4420CPAPDIP-8
Manufacturer-referencedMicrochip Technology
Pin diagram
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TC4420CPAPDIP-8Top view
TC4420COASOIC-8Top view
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PIN 2 · Inputs
Input / controlINPUT
Function
Non-inverting logic input
How to connect
Apply 0–5 V PWM with a common ground; use a 10 kΩ pulldown.
PIN 3 · Not connected
No connectionNC
Function
Unused contact
How to connect
Leave unconnected.
PIN 4 · Ground
SupplyGND
Function
Driver return
How to connect
Join pin 5 and the MOSFET source with a short return.
PIN 5 · Ground
SupplyGND
Function
Duplicated driver return
How to connect
Connect together with pin 4.
PIN 6 · Outputs
OutputOUTPUT
Function
Gate-drive output
How to connect
Join pin 7; connect through 10 Ω to the MOSFET gate.
PIN 7 · Outputs
OutputOUTPUT
Function
Duplicated gate-drive output
How to connect
Connect together with pin 6.
PIN 8 · Supply
SupplyVDD
Function
Duplicated supply
How to connect
Connect together with pin 1.