IXFA4N85X

Vgs(th) (Max) @ Id:	5.5V @ 250µA
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device Package:	TO-263 (IXFA)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	150W (Tc)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	247pF @ 25V
Vgs (Max):	±30V
Gate Charge (Qg) (Max) @ Vgs:	7nC @ 10V
Series:	HiPerFET™
Rds On (Max) @ Id, Vgs:	2.5 Ohm @ 2A, 10V
Drive Voltage (Max Rds On, Min Rds On):	10V
Current - Continuous Drain (Id) @ 25°C:	3.5A (Tc)
Drain to Source Voltage (Vdss):	850V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Active
Packaging:	Tube

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Introduction

The IXFA4N85X is a single 4-ampere, seven-pin dual-gate MOSFET designed to be used as a power switch in AC/DC circuits, making it the ideal choice for applications needing high current switching capability while consuming very low power. Its dual-gate construction allows it to be used as a switch between two power sources. It is designed specifically to withstand high energy currents, making it ideal for important applications such as load switching and power switching.The IXFA4N85X is a seven-pin MOSFET with primary leads for connection to the power supply, secondary leads for connecting to the load, and an additional lead for an optional gate pull-down resistor. The maximum voltage ratings for the device are from 0 to 17 volts, and the temperature operating range is from -40°C to +105°C. This makes it suitable for a wide range of applications.

Application Field

The IXFA4N85X is suitable for many applications, including load switching and power switching, in which its high power ratings and low power consumption make it the ideal choice. It can be used for high-frequency DC/DC converters and motor control and switching applications. It is also suitable for power supply protection and power amplifier applications. Due to its small size and high current rating, the IXFA4N85X is suitable for high current AC and DC applications, such as LED lighting systems, HVAC systems, automotive applications, and any other applications that require high current switching capability. Additionally, due to its rugged design and temperature operating range, the IXFA4N85X is well suited for medical and aerospace applications, as well as other applications requiring high temperature or high voltage operation.

Working Principle

The IXFA4N85X utilizes a dual-gate construction to control current flow. It is designed to be operated as a switch between two power sources. The two gate connections may be operated independently, or they may be connected together to function as a single switch. In situations where a single switch is used, the gate pull-down resistor allows the gate to open the switch when its impedance is low enough. When the gate connection is broken, the gate is opened. This gate pull-down resistor also allows the gate voltage to be set accurately. In applications utilizing a dual-gate configuration, each gate connection is controlled separately. One gate connection is used to open the switch, while the other gate is used to close the switch. When the voltage supplied to the gates is increased or decreased, the current through the MOSFET is also increased or decreased respectively, allowing for precise control of the MOSFET’s operating point.The IXFA4N85X is also capable of “reverse-blocking”. This is where the MOSFET blocks the current from flowing backwards, thereby preventing any damage from occurring to the device or the circuit.

Conclusion

The IXFA4N85X is a seven-pin dual-gate MOSFET designed specifically for high current AC and DC applications. It is suitable for switching applications and power supply protection, LED lighting, automotive applications, medical and aerospace applications, and other applications requiring high current switching capability. Its dual-gate construction allows it to be used as either a single switch or a dual-gate switch. It is designed to withstand high energy currents and to operate over a wide temperature range, making it suitable for a range of applications.

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