The part number "IRLML9301TRPBF" is a MOSFET transistor manufactured by Infineon Technologies. It belongs to the Logic Level MOSFET family and features a low Rds(on) with a logic-level gate drive, making it suitable for switching and power management applications. Below is the detai LED pin function, package specification, and a list of FAQs regarding the part.
Package Specification:
Package Type: SOT-23 (Small Outline Transistor Package) Number of Pins: 3 Pin Functionality for IRLML9301TRPBF:
Pin Number Pin Name Pin Function 1 Drain (D) This is the drain terminal of the MOSFET. It connects to the load or the high-voltage side of the circuit. 2 Gate (G) The gate terminal is used to control the MOSFET's switching. It receives a voltage signal to turn the transistor on or off. 3 Source (S) This is the source terminal, which is usually connected to the ground in an N-channel MOSFET configuration. It provides the current return path for the circuit.Circuit Principle:
The IRLML9301TRPBF is a N-channel MOSFET used for switching applications. The MOSFET operates by applying a voltage to the Gate (G), which controls the flow of current between the Drain (D) and Source (S) terminals.
On-state (Saturation mode): When a voltage higher than the threshold voltage (Vgs(th)) is applied to the gate, the MOSFET conducts between the drain and source, allowing current to flow. Off-state (Cutoff mode): When no voltage or a voltage lower than the threshold is applied to the gate, the MOSFET does not conduct, and the current flow is blocked.Pin Function List (Detailed for 3 pins):
Pin Number Pin Name Pin Function Description Typical Usage 1 Drain (D) The Drain pin is the output terminal of the MOSFET. In the N-channel configuration, current flows from the drain to the source when the device is on. The voltage at the drain is determined by the external circuit. This pin is connected to the load in most switching applications, such as power supply regulation and motor control circuits. 2 Gate (G) The Gate pin controls the switching behavior of the MOSFET. By applying a voltage above the threshold (Vgs(th)), the MOSFET turns on, allowing current to flow from the Drain to Source. A logic-level voltage (typically 3.3V or 5V) is used to switch the MOSFET. The gate is driven by a logic signal, typically from a microcontroller or gate driver in digital circuits. 3 Source (S) The Source pin is connected to the ground or the low voltage side of the circuit. Current flows from the source to the drain when the MOSFET is in its "on" state. This pin is usually connected to the ground in switching power circuits for current return.20 FAQ About IRLML9301TRPBF:
Q1: What type of device is the IRLML9301TRPBF? A1: The IRLML9301TRPBF is an N-channel MOSFET transistor, used primarily for switching applications in low-voltage circuits.
Q2: What is the maximum gate threshold voltage (Vgs(th)) for the IRLML9301TRPBF? A2: The gate threshold voltage (Vgs(th)) of the IRLML9301TRPBF is typically 1V, with a maximum value of 2.5V.
Q3: What is the significance of the gate pin in the IRLML9301TRPBF? A3: The Gate pin controls the conduction of current between the Drain and Source. It requires a voltage higher than the threshold to turn the MOSFET on, allowing current flow.
Q4: Can the IRLML9301TRPBF be used in high-power applications? A4: The IRLML9301TRPBF is designed for low-power switching applications, not high-power systems, as it has a relatively low Rds(on).
Q5: How does the IRLML9301TRPBF behave in the off-state? A5: In the off-state, when the gate-to-source voltage (Vgs) is below the threshold, the MOSFET does not conduct, effectively blocking current from flowing between the Drain and Source.
Q6: What is the maximum drain current for the IRLML9301TRPBF? A6: The maximum continuous drain current (Id) is 4.1A at a temperature of 25°C.
Q7: What is the recommended operating voltage for the IRLML9301TRPBF? A7: The recommended operating voltage for this MOSFET is up to 30V between the Drain and Source.
Q8: Is the IRLML9301TRPBF suitable for logic-level switching? A8: Yes, the IRLML9301TRPBF is a logic-level MOSFET, meaning it can be directly driven by a 3.3V or 5V logic signal on the Gate.
Q9: What is the typical Rds(on) for this MOSFET? A9: The Rds(on) for the IRLML9301TRPBF is typically 55 mΩ at Vgs = 10V, which results in efficient switching and low power loss.
Q10: Can the IRLML9301TRPBF handle both high-side and low-side switching? A10: The IRLML9301TRPBF is typically used for low-side switching, where the Source is connected to ground.
Q11: What is the maximum power dissipation for the IRLML9301TRPBF? A11: The maximum power dissipation for the IRLML9301TRPBF is 1.25W.
Q12: How should the Gate be driven to ensure proper switching? A12: The Gate should be driven with a voltage higher than the threshold (Vgs(th)) to turn the MOSFET on and allow current to flow between the Drain and Source.
Q13: What type of package is the IRLML9301TRPBF available in? A13: The IRLML9301TRPBF is available in the SOT-23 package, which has 3 pins.
Q14: Can the IRLML9301TRPBF be used for PWM control circuits? A14: Yes, it is suitable for use in PWM control circuits, such as motor control and power regulation applications.
Q15: What is the gate charge (Qg) for the IRLML9301TRPBF? A15: The typical gate charge (Qg) for the IRLML9301TRPBF is 4.5 nC.
Q16: Is the IRLML9301TRPBF sensitive to electrostatic discharge (ESD)? A16: Yes, like most MOSFETs , the IRLML9301TRPBF is sensitive to electrostatic discharge (ESD), so proper handling and protection measures should be taken.
Q17: What is the typical application for the IRLML9301TRPBF? A17: Common applications include low-voltage switching, power management, LED driver s, and motor control circuits.
Q18: What is the body diode type in the IRLML9301TRPBF? A18: The IRLML9301TRPBF has a built-in body diode, which allows current to flow in the reverse direction when the MOSFET is off, providing protection in some applications.
Q19: What is the threshold voltage for the IRLML9301TRPBF? A19: The threshold voltage (Vgs(th)) for the IRLML9301TRPBF is typically 1V, but can be as high as 2.5V.
Q20: Can the IRLML9301TRPBF be used in high-speed switching circuits? A20: Yes, the IRLML9301TRPBF is suitable for high-speed switching circuits due to its low Rds(on) and fast switching capabilities.
This detailed guide includes the essential specifications, circuit principles, pin functions, and common questions for the IRLML9301TRPBF MOSFET. Let me know if you need further clarifications!