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Power Amplification - ALFET Lateral MOSFETs

alfet header

Applications:
    • Professional Audio Amplifiers
    • Home Cinema
    • Active Speakers and subwoofers
    • Instrument amplifiers
    • High power car audio

Advantages:
Specifically designed for audio power amplifier output stage applications, ALFET Mosfets are an exclusive new range of devices with outstanding performance and a minimal footprint. They offer superb sonic characteristics and with the features listed below its not hard to see how we can help you to reduce size, cut costs and add real quality and functionality to your design.

• A wide safe operating area (SOA) and absence of secondary breakdown
• Reliable and robust performance when compared to bipolar solutions
• Simplified protection saving cost & reducing complexity
• Improvement of amplifier performance with awkward loads
• Oscillation-free operation on double-die devices
ALFET Mosfets also have a negative temperature coefficient and completely thermally stable bias point without the need for emitter resistors, as used in bipolar amplifiers.

Advanced technical features include:
• Simplified drive circuitry requirements through high
impedance gate
• Inherent output anti-parallel diodes
• Excellent thermal characteristics
• Single live heatsink capability (source connected case)
• Very high bandwidth and slew rate
• No high frequency cross conduction
• Easy paralleling (devices available in selected categories to enhance paralleling performance)
• Soft clipping performance

Application Note
Lateral MOSFET Design recommendations for Audio Amplifiers

alfet_to264
TO264



alfet_to247
TO247



alfet_to3
TO3


alfet_to247-5l
TO247-5L



 Datasheets & Shortform

Part No. Polarity VDSS(V) Current ID(A) PD(W) Package Comments
ALF08N16V N-channel 160 8 125 TO-247  
ALF08P16V P-channel 160 8 125 TO-247  
ALF08N16K N-channel 160 8 125 TO-3  
ALF08P16K P-channel 160 8 125 TO-3  
ALF16N16W N-channel 160 16 250 TO-264  
ALF16P16W P-channel 160 16 250 TO-264  
ALF16N16K N-channel 160 16 250 TO-3  
ALF16P16K P-channel 160 16 250 TO-3  
ALF08NP16V5 N&P 160 +/-8 TBD TO-247-5L In Development
ALF08N20V N-channel 200 8 125 TO-247  
ALF08P20V P-channel 200 8 125 TO-247  
ALF08N20K N-channel 200 8 125 TO-3  
ALF08P20K P-channel 200 8 125 TO-3  
ALF16N20W N-channel 200 16 250 TO-264  
ALF16P20W P-channel 200 16 250 TO-264  
ALF16N20K N-channel 200 16 250 TO-3  
ALF16P20K P-channel 200 16 250 TO-3  
ALF08NP20V5 N&P 200 +/-8 TBD TO-247-5L In Development