FDMS8820

Single FETs, MOSFETs Overview

The FDMS8820 is an N-Channel PowerTrench MOSFET from onsemi, designed for surface mount applications in a compact 8-pin WDFN package. It features a drain-source voltage (Vds) of 30 V and a continuous drain current (Id) of 28 A at ambient temperature, or 116 A at case temperature. The device exhibits a low on-resistance (Rds(on)) of 2.5 mΩ typical, with a maximum gate charge (Qg) of 72 nC at 10 V. Operating temperatures range from -55°C to 150°C, with power dissipation rated at 2.5 W (Ta) and 78 W (Tc).

Single FETs, MOSFETs Feature Summary

• Optimized for high-voltage operation and fast switching capabilities.
• Designed to minimize switch node ringing in DC/DC converters.
• Enhances overall system efficiency under high-current stress conditions.

Single FETs, MOSFETs Applications

• DC/DC converter designs requiring improved efficiency.
• High-frequency switching power supply circuits.
• Applications demanding minimal switch node ringing.

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix against the official onsemi datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the requested variant matches the required thermal performance ratings for your specific PCB layout and cooling strategy. Cross-reference the part number with the manufacturer's latest release notes to avoid obsolete stock.

Single FETs, MOSFETs Selection Notes

Select this component when designing low-voltage, high-current synchronous rectification stages where minimizing conduction losses is critical. The 30 V rating provides sufficient headroom for 24 V systems. Evaluate the thermal resistance characteristics against your enclosure constraints, as the WDFN package relies heavily on PCB copper area for heat dissipation during high-case-temperature operations.

Single FETs, MOSFETs Part Context

This device belongs to onsemi’s PowerTrench series, known for advanced trench gate technology. It targets modern power management ICs and controllers in consumer electronics and industrial equipment. The 8-pin WDFN form factor allows for space-constrained layouts while maintaining robust electrical performance compared to traditional leaded packages.

Single FETs, MOSFETs Replacement Considerations

Check for direct pin-compatible alternatives within the same PowerTrench family, such as the FDMS86300 for higher voltage requirements. Verify that any substitute maintains the 30 V Vds rating and comparable Rds(on) values to ensure circuit stability without redesigning the gate drive network.

Single FETs, MOSFETs FAQ

What is the typical turn-off delay time for the FDMS8820?

The typical turn-off delay time is 66 ns.

Does the FDMS8820 support automotive standards?

No, this specific part number does not carry automotive certification.