Overview
The FDT3612 is an N-Channel MOSFET designed by onsemi to enhance the efficiency of DC/DC converters, whether using synchronous or conventional switching PWM controllers. This MOSFET is part of the PowerTrench® family, known for its high performance and low on-resistance. It features faster switching speeds and lower gate charge compared to other MOSFETs with similar RDS(ON) specifications, making it easier and safer to drive, even at high frequencies. This results in higher overall efficiency in DC/DC power supply designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (Vdss) | 100 | V |
| Gate-Source Voltage (Vgss) | ±20 | V |
| Continuous Drain Current (Id) | 3.7 | A |
| Pulsed Drain Current (Id) | 20 | A |
| Maximum Power Dissipation (Pd) | 1.1 | W |
| Operating and Storage Temperature Range (Tj, Tstg) | -55 to +150 | °C |
| On-Resistance (Rds(on)) @ Vgs = 10 V | 120 mΩ | mΩ |
| On-Resistance (Rds(on)) @ Vgs = 6 V | 130 mΩ | mΩ |
| Gate Charge (Qg) | 14 nC (typ) | nC |
| Input Capacitance (Ciss) | 632 pF | pF |
| Output Capacitance (Coss) | 40 pF | pF |
| Reverse Transfer Capacitance (Crss) | 20 pF | pF |
Key Features
- High performance trench technology for extremely low RDS(ON)
- Fast switching speed
- Low gate charge (14 nC typical)
- High power and current handling capability in a widely used surface mount package (SOT-223)
- Pb-Free device
- Faster switching and lower gate charge compared to other MOSFETs with comparable RDS(ON) specifications
Applications
- DC/DC converters
- Power management
- Motor driving
Q & A
- What is the primary application of the FDT3612 MOSFET?
The FDT3612 is primarily used in DC/DC converters and power management applications.
- What are the key features of the FDT3612 MOSFET?
The key features include high performance trench technology, fast switching speed, low gate charge, and high power and current handling capability in a SOT-223 package.
- What is the maximum drain-source voltage (Vdss) of the FDT3612?
The maximum drain-source voltage (Vdss) is 100 V.
- What is the continuous drain current (Id) rating of the FDT3612?
The continuous drain current (Id) rating is 3.7 A.
- What is the typical gate charge (Qg) of the FDT3612?
The typical gate charge (Qg) is 14 nC.
- What is the operating temperature range of the FDT3612?
The operating and storage temperature range is -55°C to +150°C.
- Is the FDT3612 a Pb-Free device?
- What package type does the FDT3612 come in?
The FDT3612 comes in a SOT-223 surface mount package.
- What are the benefits of using the PowerTrench® technology in the FDT3612?
The PowerTrench® technology provides extremely low RDS(ON), faster switching speeds, and lower gate charge, enhancing overall efficiency in DC/DC converters.
- How does the FDT3612 improve the efficiency of DC/DC converters?
The FDT3612 improves efficiency by offering faster switching speeds and lower gate charge, making it easier and safer to drive, even at high frequencies.
