FDD8447L

Single FETs, MOSFETs Overview

The FDD8447L is a 40V N-Channel PowerTrench MOSFET in a TO-252 package. It features a maximum drain current of 50A (package limited) and 57A (silicon limited). The device offers a low on-resistance of 8.5mΩ at VGS=10V and 11.0mΩ at VGS=4.5V. Key electrical parameters include a breakdown voltage of 40V, gate-source voltage limits of ±20V, and total gate charge of 37nC to 52nC. Thermal resistance from junction to case is 2.8°C/W, with an operating temperature range of -55°C to +150°C.

Single FETs, MOSFETs Feature Summary

• Utilizes proprietary PowerTrench technology for optimized performance
• Provides low static drain-to-source on-resistance across various gate voltages
• Designed for fast switching applications

Single FETs, MOSFETs Applications

• Inverter circuits
• Power supplies

Single FETs, MOSFETs Procurement Notes

Verify the exact part number suffix against the manufacturer's official ordering guide, as legacy Fairchild nomenclature may differ from current ON Semiconductor standards. Confirm RoHS compliance status and specific packaging quantities directly with authorized distributors or the manufacturer before placing orders.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring a 40V rating with high continuous current handling capabilities. Ensure the thermal management strategy accounts for the specified junction-to-case resistance. Verify that the driving circuit can supply sufficient gate voltage to achieve the desired low on-resistance levels.

Single FETs, MOSFETs Part Context

This device belongs to the PowerTrench series of N-Channel MOSFETs manufactured by ON Semiconductor. It represents a transition from the original Fairchild Semiconductor product line, maintaining similar electrical characteristics while adhering to updated system requirements and naming conventions.

Single FETs, MOSFETs Replacement Considerations

Check for updated part numbers due to the integration of Fairchild Semiconductor into ON Semiconductor. Verify pinout compatibility and thermal characteristics when substituting with other 40V N-Channel MOSFETs in the same package.