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Focus MOSFET application – Transmission Control

Application Considerations

Transmission systems distribute the power from the engine to the wheels. The system consists of a clutch, gearbox (manual or automatic), differential and final drive shaft. The actuators used in these systems are either solenoids or brushless DC motors.

Gear Selectors:

MOSFETs are used to drive solenoids that control electro-hydraulic valves or light linear mechanical loads within the gearbox to operate gear changes.

Clutch Control:

Modern clutch systems such as dual clutch control typically use brushless DC motors controlled by MOSFETs. Electric motors for transmission control often need accurate speed, direction and position control.

The control MOSFETs are often situated in the gearbox.

Key MOSFET Requirements:

  • Stable performance at elevated temperatures
  • Compact package
  • Good current handling capability
  • Low on-resistance



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

Main benefits:

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

D2PAK MOSFETs can provide solutions for motor drive tasks within transmission systems.

Main benefits:

  • Low on-resistance
  • Low thermal resistance

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Products

Automotive qualified products (AEC-Q100/Q101)

型号 描述 状态 快速访问
BUK761R6-40E N-channel TrenchMOS standard level FET Production
BUK762R6-60E N-channel TrenchMOS standard level FET Production
BUK763R8-80E N-channel TrenchMOS standard level FET Production
BUK764R2-80E N-channel TrenchMOS standard level FET Production
BUK7Y3R5-40E N-channel 40 V, 3.5 mΩ standard level MOSFET in LFPAK56 Production
BUK7Y4R4-40E N-channel 40 V, 4.4 mΩ standard level MOSFET in LFPAK56 Production
BUK9K52-60E Dual N-channel 60 V, 55 mΩ logic level MOSFET Production
BUK9M53-60E N-channel 60 V, 53 mΩ logic level MOSFET in LFPAK33 Production

MOSFETs

型号 描述 状态 快速访问
BUK761R6-40E N-channel TrenchMOS standard level FET Production
BUK762R6-60E N-channel TrenchMOS standard level FET Production
BUK763R8-80E N-channel TrenchMOS standard level FET Production
BUK764R2-80E N-channel TrenchMOS standard level FET Production
BUK7Y3R5-40E N-channel 40 V, 3.5 mΩ standard level MOSFET in LFPAK56 Production
BUK7Y4R4-40E N-channel 40 V, 4.4 mΩ standard level MOSFET in LFPAK56 Production
BUK9K52-60E Dual N-channel 60 V, 55 mΩ logic level MOSFET Production
BUK9M53-60E N-channel 60 V, 53 mΩ logic level MOSFET in LFPAK33 Production

Documentation

文件名称 标题 类型 日期
Gearstick_A3 Gearstick Marcom graphics 2015-03-17
Nexperia_Selection_guide_2023 Nexperia Selection Guide 2023 Selection guide 2023-05-10

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Datasheets (8)

文件名称 标题 类型 日期
BUK761R6-40E N-channel TrenchMOS standard level FET Data sheet 2017-04-20
BUK762R6-60E N-channel TrenchMOS standard level FET Data sheet 2017-03-20
BUK763R8-80E N-channel TrenchMOS standard level FET Data sheet 2017-03-20
BUK764R2-80E N-channel TrenchMOS standard level FET Data sheet 2017-04-20
BUK7Y3R5-40E N-channel 40 V, 3.5 mΩ standard level MOSFET in LFPAK56 Data sheet 2018-04-04
BUK7Y4R4-40E N-channel TrenchMOS standard level FET Data sheet 2017-04-20
BUK9K52-60E Dual N-channel 60 V, 55 mΩ logic level MOSFET Data sheet 2018-04-06
BUK9M53-60E N-channel 60 V, 53 mΩ logic level MOSFET in LFPAK33 Data sheet 2018-04-05