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Focus MOSFET application – Engine management

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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Products

Automotive qualified products (AEC-Q100/Q101)

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

MOSFETs

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
Nexperia_Selection_guide_2023 Nexperia Selection Guide 2023 Selection guide 2023-05-10

If you have a support question, let us know. If you are in need of design support, let us know and fill in the answer form, well get back to you shortly.

Or contact us for further support.

Datasheets (8)

File name Title Type Date
BUK9K29-100E Dual N-channel TrenchMOS logic level FET Data sheet 2017-04-20
BUK9K52-60E Dual N-channel 60 V, 55 mΩ logic level MOSFET Data sheet 2018-04-06
BUK9M23-80E N-channel 80 V, 23 mΩ logic level MOSFET in LFPAK33 Data sheet 2018-04-06
BUK9M24-60E N-channel 60 V, 24 mΩ logic level MOSFET in LFPAK33 Data sheet 2018-04-05
BUK9M34-100E N-channel 100 V, 34 mΩ logic level MOSFET in LFPAK33 Data sheet 2018-04-05
BUK9M42-60E N-channel 60 V, 42 mΩ logic level MOSFET in LFPAK33 Data sheet 2020-03-30
BUK9Y38-100E N-channel TrenchMOS logic level FET Data sheet 2017-04-20
BUK9Y41-80E N-channel TrenchMOS logic level FET Data sheet 2017-04-20