Smart power switches

High-side power switches for automotive and industrial applications

Infineon’s  PROFET™ protected high-side MOSFET power switches offer solutions for a wide range of automotive and industrial applications and are available as single and multi-channel switches. The  PROFET™ family supports 12 V, 24 V, and 48 V automotive applications to replace classic fuses and relays by offering fast switching within µs, protection against overload, overvoltage, short-circuit, overtemperature, ground loss, and power supply loss. Additionally, different PROFET™ high-side power switch families can protect against dynamic overvoltage such as load dump and inductive load turn-off. The PROFET™ Guard family is the most advanced high-side smart power switch family addressing the latest needs in automotive power distribution (e.g., functional safety ISO 26262).  Infineon Classic PROFET™ is a well-established and versatile product family with more than 25 years on the market with optional integrated current sense measurement.  The last portfolio category is Industrial PROFET™, designed for industrial applications, which offer outstanding energy robustness.

High-side switches

Low-side power switches for automotive and industrial applications

Infineon's low-side smart power switches portfolio consists of two main product families: Classic  HITFET™ and HITFET™ + for 12 V and 24 V automotive and industrial applications.  HITFET™ (Highly Integrated Temperature-protected FET) family is Infineon's solution for smart low-side power switches. Their built-in intelligent protective features offer protection against overcurrent, overvoltage, short-circuit, overtemperature, and electrostatic discharge (ESD). The Classic HITFET™ offers high energy capability with RDS(on) range down to 10 mΩ. The  HITFET™ + family comes in smaller package sizes with well-balanced short-circuit robustness, power dissipation in high-speed PWM applications, and diagnosis.

Low-side switches

Multichannel power switches and controllers with SPI

Infineon's multichannel smart power switches and controllers with SPI portfolio support a wide range of automotive and industrial applications and consist of five main product families. 

Infineon SPIDER products include multichannel SPI drivers for low-current loads such as LEDs, low-power bulbs, and stepper motors, providing a range of channels and configuration options. 

The Infineon  SPIDER+ family introduces enhanced performance and features with increased configuration capability. Both families are highly scalable in regard to PWM inputs and current capability. 

The Infineon FLEX family is a fully scalable, multichannel, low-side power switch solution with SPI, integrated protection features, and advanced diagnosis. 

Infineon SPOC™ +2 is the latest generation of high-side multichannel smart power switches with a serial interface and provides state-of-the-art diagnostic and protection features.  It offers high flexibility with configurable features such as slew-rate control and intelligent restart strategy. Its SPI interface allows connecting of multiple devices via daisy-chain configuration to reduce the amount of GPIOs. 

Multichannel SPI switches & controller

Gate driver ICs for automotive power distribution

Infineon gate driver IC family for automotive power distribution supports different supply voltages from 12 V, 24 V, and 48 V. The EiceDRIVER™ APD products have either one or two gate output channels. These products are characterized by the ability to drive multiple MOSFETs in parallel and have simultaneous switching times in the µs range, which significantly improves the power net reliability compared to classic fuses. With the low power consumption, they offer a further advantage compared to a relay. In addition to this, these products offer various different protection mechanisms (e.g., wire protection) and diagnosis.

EiceDRIVER™ APD Gate Driver | Automotive Power Distribution

Infineon Smart Power Switches and Gate Driver Tool Suite

Infineon offers a range of design-in materials, which include application notes, evaluation boards, PCB design data, simulation models, and online simulations. Those materials could be found on each product page in the "Design Support" chapter. In addition, Infineon offers a dedicated tool suite for Smart Power Switches and Gate Driver ICs for automotive power distribution.

Infineon Smart Power Switches and Gate Driver Tool Suite supports system architects and hardware designers from idea to realization. This suite allows the user to select the right smart power switch or gate driver IC for a specific load using one of the “Finder and Selection” tools. Together with different “Simulation & Modelling” tools, various application scenarios can be simulated for the respective product. The results can be documented in the report tool and verified with the “Configuration” tools and the corresponding evaluation boards.

Facing a design challenge? The Infineon Developer Community is available 24x7 for you to connect and network with engineers across the globe. Get help from Infineon support engineers, and expert members to solve your design challenges anytime and from anywhere.

Tool Suite

Developer Community

• Recognize the portfolios of PROFET™ +2 12V and Power PROFET™ and identify the advantages of each of these product families
• Distinguish the differentiating features of the newly released devices of the PROFET™ +2 12V and Power PROFET™ + 12V families

Wacth eLearning

• Identify the features that give PROFET™ Load Guard its special load flexibility
• Understand how they work, and list the advantages of using PROFET™ Load Guard to address several intelligent power distribution use cases as well as various applications.

Watch eLearning

• Get to know Infineon solutions for low-side power switch ICs and identify which solutions meet specific automotive and industrial application requirements.
• Become aware of the support material that Infineon provides for its low-side power switch portfolio.

Watch eLearning

•  Understand what a Serial Peripheral Interface (SPI) is and recognize its benefits 
• Get familiar with the write commands to configure the registers

Watch eLearning

• Learn how both protections (intelligent restart control and intelligent latch) work
• Be able to describe the reset via DEN pin function and recognize the different diagnosis cases in ON and OFF states

Watch eLearning

• Know what PROFET™ +2 12 V and SPOC™ +2 are and recognize their benefits
• Identify the specificities of SPOC™ +2

Watch eLearning

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