Infineon raises integration level for small motor system ICs

July 07, 2020 //By Christoph Hammerschmidt
Infineon raises integration level for small motor system ICs
From the power tailgate, roof window and seat adjustment to the fuel pump, an increasing number of electric motors in modern automobiles ensure safety and comfort. Infineon Technologies now introduces a new product family for controlling brushed and brushless DC motors

The new Motor System IC family from Infineon are the world's first multiple half-bridge drivers for MOSFETs with integrated power supply and communication interfaces. System designers now only need half as much space on the circuit board as with previous solutions, but are still free to choose the microcontroller, says Andreas Doll, Vice President and General Manager Automotive Body Power at Infineon.

The system family incorporates the manufacturer's patented adaptive MOSFET driver concept, which significantly improves electromagnetic compatibility while reducing switching losses in the system. This control algorithm can compensate for MOSFET parameter variations in the system by automatically adjusting the gate current characteristic.

In terms of integration level, the Motor System ICs fit between discrete solutions and the highly integrated embedded power products with ARM processor in Infineon's existing motor control IC portfolio . The new product family comprises a total of seven variants, all in a VQFN-48 package (7 mm x 7 mm).

The devices include up to four half-bridge drivers for external N-channel MOSFETs. An integrated linear voltage regulator provides 5 V with an output current of 250 mA. For communication, a CAN-FD transceiver with 5 Mbit/s according to ISO 11898-2:2016 including partial networking option and/or a LIN transceiver according to 2.2A / ISO 17987-4 and SAE J2602 are available.

Development samples for the first devices are now available. Series production is scheduled to begin in the fourth quarter of calendar year 2020.

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