E523.42: Elmos' first motor controller ASSP with integrated 32-bit ARM® Cortex®

With the E523.42, Elmos presents a highly integrated motor controller, enabling its customers to realize a powerful and cost-effective implementation of motor control for 12V automotive applications. The IC combines a 32-bit ARM® Cortex® M0 microcontroller and an analog motor driver in a small QFN5*5 package. The three integrated half bridges allow the direct control of motors with 600mA each (RMS) and in boost mode even with up to 1A phase current.

The IC can drive either a three-phase BLDC motor, a three-phase stepper motor, or up to two conventional DC motors. Possible applications include: actively controlled louvers, water valves or small and medium fans, for example in car seats.

The sophisticated system concept of the E523.42 offers all peripherals to realize a sensorless commutation. In addition to a measuring system, which is directly coupled to the PWM generator, other peripherals such as timers, interrupt controllers, SPI and intelligent half-bridges with diagnostic function as well as an external power supply for sensors are integrated into the IC.

The LIN 2.2 interface with autobaud and auto-addressing functionality enables integration into existing LIN bus systems.

With the combination of a microcontroller and an integrated power amplifier, the E523.42 enables cost-optimized systems for actuators and fan applications.

For more information, please write an email to sales@elmos.com with the subject line "E523.42" or contact us by phone: + 49 231 7549 100.


About Elmos Semiconductor AG
Elmos develops, produces and markets semiconductors and sensors, primarily for use in the automotive industry. Our components communicate, measure, regulate and control safety, comfort, powertrain and network functions. For over 30 years, Elmos innovations have been bringing new functions to life and making mobility worldwide safer, more comfortable and more energy efficient.