Overview
The FDMC8321L is an N-Channel MOSFET designed by onsemi, utilizing their advanced POWERTRENCH technology. This device is optimized for low gate charge, low RDS(on), and fast switching speeds, making it ideal for improving the overall efficiency and minimizing switch mode ringing in DC/DC converters. It is suitable for both synchronous and conventional switching PWM controllers.
Key Specifications
| Symbol | Parameter | Rating | Unit |
|---|---|---|---|
| VDS | Drain to Source Voltage | 40 | V |
| VGS | Gate to Source Voltage | ±20 | V |
| ID | Drain Current (Continuous) | 49 A (TC = 25°C), 22 A (TA = 25°C) | A |
| ID | Drain Current (Pulsed) | 100 A | A |
| PD | Power Dissipation (TC = 25°C) | 40 W | W |
| PD | Power Dissipation (TA = 25°C) | 2.3 W | W |
| TJ, TSTG | Operating and Storage Junction Temperature Range | −55 to +150 | °C |
| RDS(on) | Static Drain to Source On–Resistance | 2.5 mΩ at VGS = 10 V, ID = 22 A; 4.1 mΩ at VGS = 4.5 V, ID = 18 A | mΩ |
| VGS(th) | Gate to Source Threshold Voltage | 1.0 to 3.0 V | V |
Key Features
- Advanced Package and Silicon Combination for Low RDS(on) and High Efficiency
- Next Generation Enhanced Body Diode Technology, Engineered for Soft Recovery
- 100% UIL Tested
- Pb−Free, Halide Free and RoHS Compliant
- Optimized for low gate charge and fast switching speed
Applications
- Synchronous Rectifier
- Load Switch/Orring
- Motor Switch
- Primary DC/DC Switch
Q & A
- What is the maximum drain to source voltage of the FDMC8321L MOSFET?
The maximum drain to source voltage (VDS) is 40 V.
- What is the maximum continuous drain current at 25°C?
The maximum continuous drain current (ID) at 25°C is 49 A for TC and 22 A for TA.
- What is the typical RDS(on) at VGS = 10 V and ID = 22 A?
The typical RDS(on) at VGS = 10 V and ID = 22 A is 2.5 mΩ.
- Is the FDMC8321L MOSFET RoHS compliant?
- What are the operating and storage junction temperature ranges?
The operating and storage junction temperature ranges are −55 to +150°C.
- What is the gate to source threshold voltage range?
The gate to source threshold voltage (VGS(th)) range is 1.0 to 3.0 V.
- What are some typical applications of the FDMC8321L MOSFET?
Typical applications include synchronous rectifier, load switch/orring, motor switch, and primary DC/DC switch.
- What is the thermal resistance from junction to ambient (RJA) when mounted on a specific pad?
The thermal resistance from junction to ambient (RJA) is 53°C/W when mounted on a 1 in^2 pad of 2 oz copper.
- What is the total gate charge at VGS = 10 V and ID = 22 A?
The total gate charge at VGS = 10 V and ID = 22 A is 44 to 61 nC.
- What is the reverse recovery time of the body diode?
The reverse recovery time (trr) of the body diode is 41 to 65 ns.
