Automotive electric pumps & fans 12 V

Electric pumps and fans play a critical role within the thermal management system

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Overview

The electrification of small auxiliaries, such as coolant pumps, engine cooling fans, and HVAC blowers, has become a significant driving force in the automotive industry for thermal management. Infineon offers cost-optimized and efficient motor control solutions for mechatronic BLDC motor drives, reducing the PCB size and enabling compact designs.

Benefits

  • Efficient thermal management
  • Integrated and compact solutions
  • Various discrete solutions
  • Embedded motor control library
  • Software development support

Block diagram

About

Electric pumps and fans play vital role in thermal management systems

One of the major driving forces in the automotive industry is the electrification of small auxiliaries, such as coolant pumps, engine cooling fans, and HVAC blowers. They play a very critical role within the thermal management system. Coolant pumps, for instance, are required to cool the battery or inverter, while HVAC blowers ensure that the airflow reaches passengers at the desired temperature and with minimal noise.

The majority of the electric pump and fan market utilizes small, mechatronic BLDC motor drive solutions that require cost- and system-optimized products. Some OEMs in some regions still make use of 1-ph brushed DC solutions for HVAC blowers and engine cooling fans.

Cost- and space-optimized, efficient, and high-performance solutions

Automotive MOSFETs, and sensors are the right choice and state-of-the-art market-integrated solution for mechatronic BLDC motor drive solutions.

Integrated solutions reduce PCB sizes compared to other market alternatives and make them the ideal solution for small, compact designs. Infineon offers a MOTIX™ Motor Control Library for BLDC motor control in addition to our hardware offering which reduces your design efforts significantly.

If you require a solution for BLDC motor control applications which offer more computing power, AUTOSAR and embedded security functions (HSM, dual flash bank for OTA), we offer the TRAVEO™ T2G CYT2B6/ CYT2B7 microcontrollers with MOTIX™ TLE9563-3QX or TLE9564QX motor system ICs (SBC) for BLDC motors as a U-chip solution. For brushed DC (unidirectional) motor control, our recommended solution is a MOTIX™ single half-bridge IC with complementary standalone MCUs.

Alternative solution: Standalone MCU and MOTIX™ motor system ICs (SBC)

The TRAVEO™ T2G CYT2B7 MCU series offers advanced performance, safety, and security features for automotive body electronics. With a powerful Arm® Cortex®-M4F core, it delivers enhanced performance of up to 1500 DMIPS and integrated network connectivity. Moreover, it provides scalability in memory size and pin count, enabling an MCU solution on a single platform. The family also includes dual-bank flash support for secure updates, embedded HSM for enhanced security, and advanced timer units for precise motor control.

Combined with the MOTIX™ motor system ICs (SBC) for BLDC motors, Infineon offers the ideal alternative solution when more processing power, safety and security features than MOTIX™ 32-bit motor control SoC are needed without compromising too much on the overall integration level.

TRAVEO™ T2G Arm® Cortex® for Body
MOTIX™ Motor System ICs (SBC) for BLDC motors
Further discrete solutions with half-bridge ICs

The fuel pump ECU is generally placed outside the fuel tank, while the pump itself is located within. This results in long wires between the ECU and motor, which calls for fast switching speeds to minimize power dissipation. Furthermore, ECU cooling presents its own design challenges: Fuel pump runs continuously, and the ECU is often positioned below the rear seat, where it has limited cooling capabilities.

Our integrated high-current MOTIX™ half-bridge ICs help optimize the power spread and cooling in fuel pump applications. The “worst-case” switching times are specified in the datasheet, allowing you to minimize the switching spread in relation to a discrete MOSFET in particular. The integrated MOTIX™ half-bridge requires only one single cooling area, which serves both high-side and low-side current switching. Furthermore, this device comes with over-temperature shutdown and latch behavior to protect the MOSFETs thermally. Thanks to the thermal feedback, MOTIX™ half-bridge IC also enhances switching speeds for lower switching losses.

MOTIX™ half-bridge ICs

Electric pumps and fans play vital role in thermal management systems

One of the major driving forces in the automotive industry is the electrification of small auxiliaries, such as coolant pumps, engine cooling fans, and HVAC blowers. They play a very critical role within the thermal management system. Coolant pumps, for instance, are required to cool the battery or inverter, while HVAC blowers ensure that the airflow reaches passengers at the desired temperature and with minimal noise.

The majority of the electric pump and fan market utilizes small, mechatronic BLDC motor drive solutions that require cost- and system-optimized products. Some OEMs in some regions still make use of 1-ph brushed DC solutions for HVAC blowers and engine cooling fans.

Cost- and space-optimized, efficient, and high-performance solutions

Automotive MOSFETs, and sensors are the right choice and state-of-the-art market-integrated solution for mechatronic BLDC motor drive solutions.

Integrated solutions reduce PCB sizes compared to other market alternatives and make them the ideal solution for small, compact designs. Infineon offers a MOTIX™ Motor Control Library for BLDC motor control in addition to our hardware offering which reduces your design efforts significantly.

If you require a solution for BLDC motor control applications which offer more computing power, AUTOSAR and embedded security functions (HSM, dual flash bank for OTA), we offer the TRAVEO™ T2G CYT2B6/ CYT2B7 microcontrollers with MOTIX™ TLE9563-3QX or TLE9564QX motor system ICs (SBC) for BLDC motors as a U-chip solution. For brushed DC (unidirectional) motor control, our recommended solution is a MOTIX™ single half-bridge IC with complementary standalone MCUs.

Alternative solution: Standalone MCU and MOTIX™ motor system ICs (SBC)

The TRAVEO™ T2G CYT2B7 MCU series offers advanced performance, safety, and security features for automotive body electronics. With a powerful Arm® Cortex®-M4F core, it delivers enhanced performance of up to 1500 DMIPS and integrated network connectivity. Moreover, it provides scalability in memory size and pin count, enabling an MCU solution on a single platform. The family also includes dual-bank flash support for secure updates, embedded HSM for enhanced security, and advanced timer units for precise motor control.

Combined with the MOTIX™ motor system ICs (SBC) for BLDC motors, Infineon offers the ideal alternative solution when more processing power, safety and security features than MOTIX™ 32-bit motor control SoC are needed without compromising too much on the overall integration level.

TRAVEO™ T2G Arm® Cortex® for Body
MOTIX™ Motor System ICs (SBC) for BLDC motors

Further discrete solutions with half-bridge ICs

The fuel pump ECU is generally placed outside the fuel tank, while the pump itself is located within. This results in long wires between the ECU and motor, which calls for fast switching speeds to minimize power dissipation. Furthermore, ECU cooling presents its own design challenges: Fuel pump runs continuously, and the ECU is often positioned below the rear seat, where it has limited cooling capabilities.

Our integrated high-current MOTIX™ half-bridge ICs help optimize the power spread and cooling in fuel pump applications. The “worst-case” switching times are specified in the datasheet, allowing you to minimize the switching spread in relation to a discrete MOSFET in particular. The integrated MOTIX™ half-bridge requires only one single cooling area, which serves both high-side and low-side current switching. Furthermore, this device comes with over-temperature shutdown and latch behavior to protect the MOSFETs thermally. Thanks to the thermal feedback, MOTIX™ half-bridge IC also enhances switching speeds for lower switching losses.

MOTIX™ half-bridge ICs

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