IRLZ44N Power MOSFET: Datasheet, Pinout, IRLZ44N MOSFET

IRLZ44N Pinout

Symbol

IRLZ44N Symbol

Footprint

IRLZ44N Footprint

3D Model

IRLZ44N 3D Model

The IRLZ44N is a logic level Mosfet with a low gate threshold voltage of 5V, which means it can be fully switched on with just 5V on its gate pin, obviating the requirement for a driving circuit.

On April 1, 1999, Siemens Semiconductors officially changed its name to Infineon Technologies. Infineon is a dynamic and flexible company. Success in the highly competitive and ever-changing microelectronics world is our constant goal. As the world's leading designer, manufacturer and supplier, Infineon has a wide range of products used in various microelectronics applications. Our product portfolio includes not only logic products, including digital, mixed-signal and analogue integrated circuits but also discrete semiconductor products.

• lanar cell structure for wide SOA

• Optimized for broadest availability from distribution partners

• Product qualification according to JEDEC standard

• Silicon optimized for applications switching below <100kHz

• Industry-standard through-hole power package

• High-current rating

• Increased ruggedness

• Wide availability from distribution partners

• Industry-standard qualification

• High performance in low-frequency applications

• Standard pin-out allows for drop-in replacement

• High current capability

• High voltage linear regulators

• Non-resonant switching converters (buck/boost/buck-boost topologies)

• Resonant switching converters (half-bridge or full-bridge topologies)

• In these topologies, the IRLZ44N can be used as a high-side switch (non-resonant topologies) or as a gate driver (e.g., an LLC resonant converter) as long as the drain current and VDS breakdown ratings are not exceeded.

• IRF1010E

• IRF1010EZ

• IRF1010N

• IRF1010Z

• IRF1018E

• IRF1405

• IRF1405Z

• IRF1407

• IRF1607

• IRF2805

• IRF2807

• IRF2807Z

• IRF2907Z

• IRF3007

• IRF3205

• IRF3205Z

• IRF3305

• IRF3710Z

The IRLZ44N's main advantage, aside from its temperature rating and high electrical ratings for VDS and drain current, is its low gate voltage threshold. The gate threshold is low enough that an MCU's GPIO pin can drive an IRLZ44N rather far into the ON state. As can be seen from the transfer characteristics, everything from 5 V logic families to LVCMOS logic can generate enough voltage to drive the IRLZ44N with minimal on-state resistance.

Drain current vs. VGS.

This project demonstrates how to power an LED with a MOSFET in a straightforward manner. The Arduino can drive LEDs without the use of a MOSFET, but a MOSFET or transistor is necessary when the load on a single pin exceeds 40mA or the combined load on all pins exceeds 200mA. Because the current necessary to drive a 5V mechanical relay is roughly 100mA, which is more than a single pin can deliver, you'll also need a MOSFET.

You must need a logic level MOSFET with microcontroller output voltages; these are typically denoted by an L in the part number, such as IRLZ44N or IRL540.

Logic level MOSFETs, such as the IRLZ44N, can be utilized in Arduino projects to switch high currents at voltages greater than 5V. When installed with a sufficient heatsink and de-rated for its projected operational temperature, the International Rectifier device can switch 47A at up to 55V. Consult the associated datasheet for specifics on your device, as not all IRLZ44Ns have the same current limit specs. The gate, drain, and source pins for the TO-220 package are depicted in the diagram above, from left to right.

A 10k pull-down resistor must be placed across the gate and source connections, else the MOSFET will be turned on by even minor electrostatic voltages on the gate - simply touching the bare wire on the gate is enough.

For the IRLZ44N to conduct, the Gate Threshold Voltage, designated as VGS(th) in the electrical characteristics, must be exceeded – this is 2V for the IRLZ44N. The MOSFET, on the other hand, is barely turned on at 2V and can only carry a very modest current, perhaps 1A. Consult the data sheet's charts to see what current you can switch with what gate voltage.

How to Use a Mosfet to Drive an Led Circuit