Overview
The IRF740PBF is a third-generation power MOSFET transistor designed and manufactured by Vishay Siliconix. This N-Channel MOSFET is optimized for high-power applications, offering a combination of fast switching, ruggedized device design, low on-resistance, and high voltage ratings. It is particularly suitable for power amplification, motor control, and switching circuits where efficient power handling is crucial.
Key Specifications
| Parameter | Symbol | Limit | Unit |
|---|---|---|---|
| Drain-source voltage | VDS | 400 | V |
| Gate-source voltage | VGS | ±20 | V |
| Continuous drain current (TC = 25 °C) | ID | 10 | A |
| Pulsed drain current | IDM | 40 | A |
| Drain-source on-state resistance (VGS = 10 V, ID = 6.0 A) | RDS(on) | 0.55 | Ω |
| Total gate charge (VGS = 10 V, ID = 10 A, VDS = 320 V) | Qg | 63 | nC |
| Gate-source charge (Qgs) | Qgs | 9.0 | nC |
| Gate-drain charge (Qgd) | Qgd | 32 | nC |
| Turn-on delay time (td(on)) | td(on) | 14 | ns |
| Turn-off delay time (td(off)) | td(off) | 50 | ns |
| Operating junction and storage temperature range | TJ, Tstg | -55 to +150 | °C |
Key Features
- High Power Handling: The IRF740PBF can handle high power levels, making it suitable for demanding applications.
- Low On-Resistance: It features low on-resistance (RDS(on) = 0.55 Ω at VGS = 10 V, ID = 6.0 A) for efficient power transfer.
- High Voltage Rating: The transistor has a high voltage rating of 400 V, suitable for various power applications.
- Fast Switching Speed: It offers fast switching speeds with turn-on and turn-off delay times of 14 ns and 50 ns, respectively.
- Temperature Stability: The IRF740PBF exhibits good temperature stability under high power conditions.
- TO-220 Package: Available in a TO-220AB package, which provides mechanical support and thermal dissipation for high-power applications.
Applications
- Power Amplification: The IRF740PBF is commonly used in high-power audio amplifier designs and other power amplification circuits.
- Motor Control: It is ideal for motor control applications requiring high power handling and efficient switching.
- Switching Circuits: The IRF740PBF can be utilized in power switching circuits for efficient power control.
- Power Supplies: It finds applications in high-power DC power supply units.
- Motor Drives: The IRF740PBF is used in motor drive circuits for efficient motor control.
Q & A
- What is the maximum drain-source voltage of the IRF740PBF?
The maximum drain-source voltage (VDS) is 400 V.
- What is the continuous drain current rating at 25 °C?
The continuous drain current (ID) at 25 °C is 10 A.
- What is the on-resistance of the IRF740PBF at VGS = 10 V and ID = 6.0 A?
The on-resistance (RDS(on)) is 0.55 Ω at VGS = 10 V and ID = 6.0 A.
- What is the total gate charge of the IRF740PBF?
The total gate charge (Qg) is 63 nC at VGS = 10 V, ID = 10 A, and VDS = 320 V.
- What are the turn-on and turn-off delay times of the IRF740PBF?
The turn-on delay time (td(on)) is 14 ns, and the turn-off delay time (td(off)) is 50 ns.
- What is the operating junction and storage temperature range of the IRF740PBF?
The operating junction and storage temperature range is -55 to +150 °C.
- In what package is the IRF740PBF available?
The IRF740PBF is available in a TO-220AB package.
- What are some common applications of the IRF740PBF?
Common applications include power amplification, motor control, switching circuits, power supplies, and motor drives.
- What are some equivalents to the IRF740PBF?
Some equivalents include the IRF840, IRFP460, and IRF3205.
- How should the IRF740PBF be installed to ensure optimal performance?
Ensure proper connections to the gate, drain, and source terminals, follow recommended PCB layout, and implement adequate thermal management.
