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Next-generation embedded motor controller

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TDK Corporation has expanded its Micronas embedded motor controller portfolio with the first members of the new HVC 5x family of system-on-chip (SoC) programmable motor controllers for driving small stepper, brushed (BDC) and brushless (BLDC) motors in automotive and industrial applications.

The new HVC 5x family represents an application-specific evolution of the popular HVC 4x devices, designed as a "one IC fits all" motor control solution for stepper, BLDC and BDC motors.

The new HVC 5221D and HVC 5222C focus on single motor types to enable low-cost, small form factor applications.

With the HVC 4x and the first two devices in the HVC 5x family, TDK offers a growing portfolio of motor control solutions for intelligent actuators, with a specific focus on thermal systems in electric and hybrid vehicles.

The HVC 5221D includes four motor terminals with a peak current of 500 mA each and focuses on stepper and DC motors in expansion and water valves.

The HVC 5222C has three motor terminals, making it suitable for brushless motors with phase current up to 1 A for dampers and small fans.

Both devices include seven general purpose I/O ports and many automotive diagnostic and safety functions in a small 24-pin QFN package.

All HVC 5x controllers are pin compatible for easy design and scalability.

Features common to the HVC 4x and HVC 5x families include:

  • 32-bit ARM Cortex-M3 CPU cores
  • 20 MHz system oscillator and 35 kHz watchdog oscillator
  • 32k or 64k flash memory versions with 2k or 4k SRAMs
  • 12-bit, 1μs ADC for various measurements
  • Digital periphery to support motor control algorithms.
  • LIN transceiver and UART for communication and self-addressing using BSM method.
  • Automotive qualification according to AEC-Q100 for temperature grade 1.

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