The E523.42 is a highly integrated motor controller for 12V automotive application. The device combines a 32bit ARM® Cortex®-M0 microcontroller and a high-voltage analog motor driver in a small footprint leadless package.
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  • Control and drive of a three phase brush less motor (BLDC), a three phase stepper motor or two conventional DC motors.
  • Integrated three half bridge driver with a maximum phase current of 600mA (RMS) per each phase. Boost mode up to 1A peak(1
  • Integrated measurement system for motor current and voltage (phase and supply)
  • Monitor and diagnosis features:
    - Under/Over-voltage , over-current, over-temperature
    - Short circuit and open load detection
  • Smart supply block for 12V automotive boardnet
    - Configurable low supply voltage (<7V) operation
    - 30μA sleep mode current (25°C typ.)
  • Area and power optimized 32bit ARM® Cortex®-M0(2
     - 32 KByte OTP, 256 Byte customer EEPROM
     - 24 KByte SysROM(3 for LIN protocol and bootloader
  • Serial interface for fast end-of-line progamming
  • Support of external sensor by
    - 5V/20mA voltage supply
    - Data interfaces (analog/digital GPIOs, SPI)
  • LIN 2.2 autobaud interface and auto-addressing (compatible to LIN 2.0 and 1.3 and SAE-J2602-2), LIN 2.2 SNPD
  • Operating range of -40°C to +150°C junction temperature

    (1 Thermal limitation
    (2 ARM® and Cortex® are the registered trademarks of ARM Limited in the EU and other countries.
    (3 Contact Elmos for customization


Free Download

File Description Type
Info Sheet PDF 164 kB
Product Flyer BLDC Motor Control PDF 3.29 MB

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File Description
E523.42 | Data Sheet

Application Diagram


  • Three motor(BLDC), a three phase stepper motor or two conventional DC motors
  • ƒƒ Sensorless motion detection
  • Seat Cooling Fan
  • Grille Shutter

Ordering Information

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Part No. TempAmb Range Package Order No.
E523.42 -40°C to +125°C QFN32L5 E52342A61C
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