IRL3803S

Series:	HEXFET®
Packaging:	Tube
Part Status:	Obsolete
FET Type:	N-Channel
Technology:	MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss):	30V
Current - Continuous Drain (Id) @ 25°C:	140A (Tc)
Drive Voltage (Max Rds On, Min Rds On):	4.5V, 10V
Rds On (Max) @ Id, Vgs:	6 mOhm @ 71A, 10V
Vgs(th) (Max) @ Id:	1V @ 250µA
Gate Charge (Qg) (Max) @ Vgs:	140nC @ 4.5V
Vgs (Max):	±16V
Input Capacitance (Ciss) (Max) @ Vds:	5000pF @ 25V
FET Feature:	--
Power Dissipation (Max):	3.8W (Ta), 200W (Tc)
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Supplier Device Package:	D2PAK
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB

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INTRODUCTION

IRL3803S is a power field-effect transistor or FET created by Infineon Technologies. It belongs to the series of International Rectifier Low-side Smart Series (IRLSM) family of MOSFETs. This power MOSFET is specifically designed for automotive and commercial applications. It provides reliability and low On-resistance to minimize conduction losses and maximize efficiency. The IRL3803S is compatible with compact designs, has good thermal performance, and is a great fit for a wide range of motor drives, power supplies, and power distribution applications.

APPLICATIONS

The IRL3803S power MOSFET is designed for use in a variety of automotive and commercial applications, such as motor drives, power supplies, and power distribution modules. It is also suitable for applications such as power tools, air conditioners, short circuit protection, and motion control systems. The IRL3803S can help provide improved design efficiency in applications requiring high voltage and current. The features of this power MOSFET also make it suitable for vehicle power electronic control units, such as chargers, converters, and generators. With its ability to provide low on-resistance and good thermal performance, the IRL3803S is suitable for applications that require higher power densities. Additionally, it can provide reliable low on-resistance performance and improved thermal stability over a wide temperature range.

FEATURES

The IRL3803S has a number of special features that make it a great choice for a wide range of applications. It comes in a TO-220 package and is rated for an operating temperature range of -55°C to 150°C.The IRL3803S has an RDS(ON) max of 4 mΩ at 25°C, a VGS up to plus 20V RMS , a VGS off of minus 20V RMS , and an avalanche capability of 20V RMS . The device also has an exposed pad for improved thermal performance. The IRL3803S also has high peak current capabilities and low gate charge. This makes it suitable for high current loads where switching losses need to be minimized. It also has a high frequency transient response and is immune to ESD (electrostatic discharge).

WORKING PRINCIPLE

A power MOSFET acts like a voltage-controlled switch. It can be used to control the flow of electric current in an electrical circuit.The IRL3803S is a power MOSFET with an internal gate-source voltage (VGS). This voltage is fed to the MOSFET’s gate, and when it is below a certain threshold, the MOSFET stays in a non-conductive state and no current can flow through the channel. When the voltage on the gate increases and exceeds the threshold voltage (VGS(th)) of the device, the MOSFET turns on and electric current begins to flow from the source to the drain. In the IRL3803S, the gate source voltage (VGS) is typically supplied externally by a controller or processor. The applied voltage on the gate determines the state of the MOSFET. When the voltage is below the threshold voltage, the MOSFET stays in the non-conductive state and no current can flow through the channel. When the voltage on the MOSFET’s gate exceeds a certain threshold, the MOSFET turns on and electric current begins to flow from the source to the drain. The magnitude of the current is determined by the amount of voltage on the gate and the resistance of the MOSFET’s channel.

CONCLUSION

The IRL3803S is a power MOSFET designed for use in a variety of automotive and commercial applications. It has a low on-resistance, good thermal performance and is rated for an operating temperature range of -55°C to 150°C. The IRL3803S has a number of specialized features, such as a VGS of up to plus 20V RMS, a VGS off of minus 20V RMS, an avalanche capability of 20V RMS, and an exposed pad for improved thermal performance. In addition, it has a high peak current capability and low gate charge, making it suitable for high current loads. The working principle of the IRL3803S is straight-forward: When the voltage on the gate-source exceeds the threshold voltage, the MOSFET turns on and allows current to flow.

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