IRLZ44N MOSFET

The IRLZ44N is a well-known N-Channel Power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) that's widely used in electronic circuits and various applications. It's recognized for its great switching performance, making it ideal for lots of uses, especially in power electronics and voltage regulation.

IRLZ44N MOSFET Specifications

IRLZ44N MOSFET Manufacturer

The IRLZ44N MOSFET is made by Infineon Technologies, a leading semiconductor company known for creating a variety of electronic components, including power MOSFETs.

Infineon Technologies is a well-established semiconductor company based in Germany. They're recognized for their broad range of products, such as MOSFETs, microcontrollers, power management ICs, and more. Infineon’s components are used across many industries, like automotive, industrial, consumer electronics, and beyond.

IRLZ44N MOSFETFeatures

Planar Cell Structure

The IRLZ44N has a planar cell structure designed to offer a wide Safe Operating Area (SOA). This ensures the MOSFET is reliable and robust, especially when working under different operating conditions.

Optimized for Availability

This MOSFET is designed and made with availability in mind, ensuring it’s easy to find through distribution partners. That way, it's always accessible for customers and engineers.

JEDEC Standard Qualification

The product goes through qualification processes according to JEDEC (Joint Electron Device Engineering Council) standards. These are recognized throughout the semiconductor industry and ensure the product’s reliability and compatibility.

Silicon Optimization

The silicon in this MOSFET is optimized for low to moderate-frequency switching, particularly for applications below 100 kHz. This makes the IRLZ44N ideal for such use cases.

Industry-Standard Through-Hole Package

It comes in a standard through-hole power package, which makes it easy to use with standard PCB assembly processes. This helps streamline its use across various applications.

High-Current Rating

The IRLZ44N has a high-current rating, meaning it can handle large current loads. This is a key feature for applications that require handling significant current.

IRLZ44N MOSFET Pinout

IRLZ44N MOSFET Pinout

Equivalent/ Alternative

IRLZ44N CAD Model

IRLZ44N CAD Model

IRLZ44N MOSFET Benefits

Increased Ruggedness

The IRLZ44N is built tough—it can handle harsh conditions, voltage spikes, and current surges without losing performance. This durability makes it super reliable for demanding applications.

Wide Availability

You can find the IRLZ44N pretty much everywhere, thanks to its distribution partners. This easy availability makes life simpler for engineers and ensures a steady supply when you need it.

Industry-Standard Qualification

It goes through rigorous, industry-standard qualification processes, so you can trust its quality and reliability. This is a big deal for ensuring consistent performance in your projects.

High Performance in Low-Frequency Applications

This MOSFET shines in low-frequency applications, especially those running below 100 kHz. Its design ensures smooth operation and great efficiency in these types of setups.

Standard Pin-Out

The IRLZ44N uses a standard pin-out, making it a breeze to swap into existing circuit designs. No major adjustments needed—just drop it in and go.

High Current Capability

With its ability to handle large currents, this MOSFET is perfect for applications where you need to move a lot of power. It's a great choice for power electronics projects.

IRLZ44N MOSFET Application

High Voltage Linear Regulators

The IRLZ44N can be used in high-voltage linear regulator circuits. It works as a switching element to help control the output voltage, improving both efficiency and voltage regulation in these designs.

Non-Resonant Switching Converters

This MOSFET is perfect for non-resonant switching converter circuits like buck (step-down), boost (step-up), and buck-boost (step-up/down) configurations. It plays a crucial role in these circuits, ensuring efficient voltage conversion.

Resonant Switching Converters

The IRLZ44N can also be used in resonant switching converters, such as half-bridge or full-bridge setups. These are great for high-frequency, high-efficiency power conversion applications.

IRF3708 vs IRLZ44N

The IRF3708 is better for low-voltage applications due to its lower Rds(on) values. On the other hand, the IRLZ44N has a higher voltage rating, making it a better choice for moderate to high-voltage applications.

IRLZ34N vs IRLZ44N

The IRLZ44N typically has lower Rds(on) values, which means it has less conduction loss and works better for applications that need efficient power handling. The IRLZ34N, while still a good option, might be more suitable for situations where lower efficiency is okay or when the exact Rds(on) value isn’t as critical.

Both MOSFETs have pretty much the same voltage ratings, gate-source voltage limits, and gate threshold voltages.

How Do I Use IRLZ44N

Using the IRLZ44N MOSFET as a switch is pretty straightforward. You’re right that you need to apply voltage to the gate to turn it on. Here’s how you can set it up:

Components Needed:

• IRLZ44N MOSFET
• Load (like a motor, LED, or other device)
• Power supply for the load
• Microcontroller (like an Arduino)
• Resistor (optional pull-down)

Steps:

Connections:

1. Connect the Drain (D) of the IRLZ44N to the positive terminal of your load (e.g., motor or LED).
2. Connect the Source (S) of the IRLZ44N to ground (GND) of the power supply.
3. Connect the negative terminal of your load to the ground (GND) of the power supply.
4. If you want to ensure the MOSFET stays off when the control signal is disconnected, add a pull-down resistor (e.g., 10k ohms) between the Gate (G) and ground (GND).

Gate Voltage (Vgs):
To turn on the IRLZ44N, apply a voltage between the Gate (G) and Source (S) pins that’s higher than its threshold voltage (Vgs(th)), which is usually around 1.0V to 2.0V. To make sure it switches reliably, use at least 5V for the Gate voltage. An Arduino or similar microcontroller can provide this voltage.

Control Logic:
In your Arduino code, use a digital output pin to control the Gate voltage. When the digital pin is HIGH, it turns the MOSFET on. When it's LOW, the MOSFET is off.

Protection Diode (Optional):
If you’re switching inductive loads like motors, consider adding a flyback diode across the load to protect against voltage spikes when turning the load off.

Power Supply:
Make sure your power supply matches the voltage and current needs of your load.

What is IRFZ44N
The IRFZ44N is an N-Channel Power MOSFET, made by companies like International Rectifier (now part of Infineon Technologies). It’s widely used in applications where you need to switch or control high-power loads.

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