IRFZ44N Mosfet N-Channel Transistor

Description

IRFZ44N Mosfet N-Channel Transistor is particularly suited for bridge circuits. Its where diode speed and commutating safe operating areas are critical. Hence, offer additional safety margin against unexpected voltage transients. Additionally, they are made for low voltage, high speed switching applications in power supplies, converters and power motor controls

It has a high drain current of 49A and low Rds value of 17.5 mΩ. It also has a low threshold voltage of 4V at which the MOSFET will start conducting. Hence it is commonly used with microcontrollers to drive with 5V. However a driver circuit is needed if the MOSFET has to be switched in completely.

Difference between IRLZ44N and IRFZ44N Mosfet

IRLZ44N is a Logic level Mosfet with a very low gate threshold voltage of 5V, meaning the MOSFET can be fully turned on with just 5V on its gate pin which avoids the need for a driver circuit.

On the other hand, IRFZ44N requires a gate driver circuit if the MOSFET has to be turned on completely using a microcontroller like Arduino. However it does turn on partially with direct 5V form a I/O pin, but the output drain current will be limited.

Features of IRFZ44N Mosfet N-Channel Transistor

• Small signal N-Channel MOSFET
• Continuous Drain Current (ID) is 49A at 25°C
• Pulsed Drain Current (ID-peak) is 160A
• Minimum Gate threshold voltage (VGS-th) is 2V
• Maximum Gate threshold voltage (VGS-th) is 4V
• Gate-Source Voltage is (VGS) is ±20V (max)
• Maximum Drain-Source Voltage (VDS) is 55V
• Rise time and fall time is about 60ns and 45ns respectively.
• It is commonly used with Arduino, due to its low threshold current.
• Available in To-220 package

Applications

• It is used in Switching high power devices
• Also in Control speed of motors
• LED dimmers or flashers
• High Speed switching applications
• Converters or Inverter circuits

Datasheet