The I RF P460PBF is a model from International Rectifier (which is now a part of Infineon Technologies). It is a N-channel MOSFET typically used in power electronics applications. Let’s break down the specifics as per your request:
Package Type:
The IRFP460PBF is typically available in a TO-247 package, which is a common type of package for power MOSFETs . The TO-247 package is a 3-lead package, which provides the necessary terminals for drain, source, and gate connections.
Pinout Function Explanation:
Below is the detailed pinout of the IRFP460PBF, corresponding to its TO-247 package. As the TO-247 package has 3 pins, here is a detailed description:
Pin Number Pin Name Pin Function Description Pin 1 Gate (G) Gate The Gate terminal is the input terminal of the MOSFET. It controls the flow of current between the Drain and Source. A voltage applied to the Gate controls the switching of the MOSFET. For the IRFP460PBF, the Gate threshold voltage is typically between 2.0V and 4.0V, meaning that it begins to conduct when the gate voltage exceeds this threshold. Pin 2 Drain (D) Drain The Drain terminal is the output of the MOSFET. It is where the current flows out when the MOSFET is conducting. In the IRFP460PBF, the Drain is typically connected to a high-voltage circuit or power source, and current flows from the Drain to the Source when the MOSFET is turned on. Pin 3 Source (S) Source The Source terminal is the reference terminal, often connected to ground or the negative side of the power supply. The current flows from the Source to the Drain when the MOSFET is in its conducting state. It is crucial that the Source is properly connected to the reference voltage to ensure proper operation.Circuit Principle:
The IRFP460PBF operates as a power MOSFET in various electronic circuits, primarily designed for switching and amplifying high voltages and currents. Its typical application involves switching power supplies, motor control, DC-DC converters, and inverter circuits.
Gate Drive: A voltage applied between the Gate and Source terminals turns the MOSFET on or off. When the Gate voltage exceeds the Gate threshold voltage, the MOSFET becomes conductive, allowing current to flow between the Drain and Source. Operation in Saturation: In the on-state, the MOSFET behaves as a low-resistance switch between Drain and Source. The Rds(on) (on-resistance) of the IRFP460PBF is very low, which ensures efficient power transfer when the device is conducting. Switching Characteristics: The IRFP460PBF is designed to handle high-speed switching with low gate charges, making it suitable for high-efficiency power applications.FAQs about IRFP460PBF:
Q1: What is the maximum Drain-Source Voltage (Vds) of the IRFP460PBF? A1: The IRFP460PBF has a maximum Drain-Source Voltage of 500V.
Q2: What is the typical Gate Threshold Voltage of the IRFP460PBF? A2: The typical Gate Threshold Voltage of the IRFP460PBF is between 2V to 4V.
Q3: What is the Rds(on) value of the IRFP460PBF? A3: The IRFP460PBF has a maximum Rds(on) of 0.27 ohms at Vgs = 10V.
Q4: What is the total Gate Charge (Qg) for the IRFP460PBF? A4: The total Gate Charge (Qg) is typically 140nC.
Q5: What is the maximum continuous Drain current (Id) for IRFP460PBF? A5: The maximum continuous Drain current for the IRFP460PBF is 20A at Tcase = 25°C.
Q6: Can the IRFP460PBF be used in high-frequency applications? A6: While the IRFP460PBF is suitable for switching applications, it is not ideal for very high-frequency applications as its switching time is moderate.
Q7: What is the thermal resistance junction-to-case (RthJC) for the IRFP460PBF? A7: The thermal resistance junction-to-case for the IRFP460PBF is typically 0.5°C/W.
Q8: What is the maximum operating temperature for IRFP460PBF? A8: The maximum operating junction temperature for the IRFP460PBF is 150°C.
Q9: What are some applications where the IRFP460PBF is used? A9: The IRFP460PBF is used in applications such as power supplies, motor drivers, DC-DC converters, inverters, and solar power systems.
Q10: Can the IRFP460PBF handle inductive loads? A10: Yes, the IRFP460PBF can handle inductive loads, but flyback diodes or other protection circuits are recommended to protect against voltage spikes during switching.
Q11: What is the Gate voltage rating for the IRFP460PBF? A11: The maximum Gate voltage for the IRFP460PBF is ±20V.
Q12: What is the typical switching time for the IRFP460PBF? A12: The typical turn-on and turn-off time for the IRFP460PBF is in the range of 20ns to 100ns, depending on the gate drive circuit.
Q13: Can the IRFP460PBF be used in parallel configurations? A13: Yes, the IRFP460PBF can be used in parallel configurations, but attention must be paid to ensuring proper thermal management and balancing of the MOSFETs.
Q14: What are the primary differences between the IRFP460PBF and similar MOSFETs? A14: The main difference lies in the voltage rating, Rds(on), and gate charge characteristics, which may be different in other MOSFET models within the same family.
Q15: Does the IRFP460PBF have internal protection features? A15: The IRFP460PBF does not have internal protection features such as over-temperature or over-voltage protection. External components should be used for these protections.
Q16: What is the Gate charge transfer characteristic of the IRFP460PBF? A16: The Gate charge transfer characteristic shows that a higher Vgs (Gate-source voltage) will result in faster switching, while a lower Vgs will slow down the switching process.
Q17: What is the Safe Operating Area (SOA) for the IRFP460PBF? A17: The IRFP460PBF has a wide Safe Operating Area (SOA) for both linear and switching applications, ensuring reliable performance at different voltage and current conditions.
Q18: How should the IRFP460PBF be mounted? A18: The IRFP460PBF should be mounted on a heatsink if high power dissipation is involved. Proper thermal management is essential to prevent thermal runaway.
Q19: How does the IRFP460PBF behave in an over-voltage condition? A19: In an over-voltage condition, the IRFP460PBF may enter avalanche mode, leading to destruction unless protected by external clamping diodes or similar protection circuitry.
Q20: What is the recommended Gate resistor value for the IRFP460PBF? A20: The recommended Gate resistor value for the IRFP460PBF is typically 10Ω to limit the inrush current during switching.
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