Focus MOSFET application – Engine management

Repetitive avalanche capability in a compact footprint

Application Considerations

Injector/valve controllers form a building block within both diesel and gasoline engine control modules to deliver optimum fuel consumption. The injectors are controlled by a complex ‘peak and hold’ current control. The “peak” current opens the valve and the “hold” current maintains the valve in the open position.

Diesel Injection: Various topologies are used, but are usually differentiated by those that apply a boost voltage and those that don’t.

Gasoline Injection: The main configurations are 'multi-point' and 'direct' injection. The circuit topology is similar to that of diesel injectors.

Key MOSFET Requirements:

  • High lifetime reliability
  • High current transient robustness
  • Good thermal performance
  • Small footprint
  • Guaranteed repetitive avalanche capability



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LFPAK56 (Single & Dual Power-SO8) MOSFETs are ideally suited to provide compact and thermally stable solutions for injection applications.

Main benefits:

  • Robust product using advanced copper clip technology
  • Excellent current handling
  • Compact footprint
  • Repetitive avalanche rated

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Focus MOSFET application – Engine management
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Products

Type number Description Status Quick access
BUK9K29-100E Dual N-channel TrenchMOS logic level FET Production
BUK9K52-60E Dual N-channel 60 V, 55 mΩ logic level MOSFET Production
BUK9M23-80E N-channel 80 V, 23 mΩ logic level MOSFET in LFPAK33 Production
BUK9M24-60E N-channel 60 V, 24 mΩ logic level MOSFET in LFPAK33 Production
BUK9M34-100E N-channel 100 V, 34 mΩ logic level MOSFET in LFPAK33 Production
BUK9M42-60E N-channel 60 V, 42 mΩ logic level MOSFET in LFPAK33 Production
BUK9Y38-100E N-channel 100 V, 38 mΩ logic level MOSFET in LFPAK56 Production
BUK9Y41-80E N-channel 80 V, 45 mΩ logic level MOSFET in LFPAK56 Production

Documentation

File name Title Type Date
Motormanagement_A4 Motormanagement Marcom graphics 2015-03-17

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