Spark Logic

IRF7413 N-channel MOSFET connection guide

IRF7413 N-channel MOSFET SO-8 wiring guide with power, signal assignments, and bench checks.

SO-8

8 contacts Current package

Infineon / International Rectifier · Single die with parallel leadframe contacts.

Check that the switch is off

Required

Use a current-limited 5 V supply and a 1 kΩ resistive load. Pull the gate down to its source through 10 kΩ.

RL 1 kΩ between 5 V and Switched node5 VRL 1 kΩSwitched node
RPD 10 kΩ between Gate and ReturnGateRPD 10 kΩReturn

Bench checks

  • VGS should be approximately 0 V, and the switched node should sit near 5 V.

International Rectifier IRF7413PbF, terminal diagram and electrical characteristics. The resistors are fixture choices.

Connection scenarios

Switch on a small resistive load

Use a 0/5 V gate drive through 100 Ω. Keep the 10 kΩ pull-down in place to define the state when the gate driver is disconnected.

  • 5 V
    • Current-limited 5 V supply
    • RL.1
  • Switched node
  • Return
  • Gate
  • Drive
    • Gate-driver output
    • RG.1
RL 1 kΩ between 5 V and Switched node5 VRL 1 kΩSwitched node
RPD 10 kΩ between Gate and ReturnGateRPD 10 kΩReturn
RG 100 Ω between Drive and GateDriveRG 100 ΩGate

Bench checks

  • With the gate near 5 V relative to source, the switched node should fall close to ground and the load current should be about 5 mA.
  • The threshold voltage describes the onset of conduction. Use the specified on-resistance at the actual gate drive to estimate load losses.

International Rectifier IRF7413PbF, electrical characteristics. Supply, gate drive and resistors are fixture choices.

SO-8 wiring map

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

Top view. Locate the package index before counting counterclockwise from pin 1.
Selected pin details

2 · S

Current terminal · Bidirectional

Source. It sets the gate-voltage reference and is the intrinsic diode anode.

International Rectifier IRF7413PbF, p. 1

Electrical limits · Pin in the reference

Models and documents

Single-channel SO-8. Join the three source leads and the four drain leads in the layout.

IRF7413TRPBF
Infineon SO-8 order code.
IRF7413TRPBF-1
Infineon SO-8 order code.