Smart LIN driver IC for DC, Stepper and BLDC motor (1A)

Top features

• Motor driver
  

  • Driver for DC/BLDC/Stepper motor

  • Ron = 0.8Ω typ. for 1 half-bridge + shunt

  • 2x NFET for each half-bridge

  • on-chip charge-pump for top-NFETs

  • Vds protection for all NFETs

• Microcontroller
  

  • MLX16-FX, application CPU

  • MLX4, communication CPU

  • 2x watch-dog

  • +50 input interrupt controller

  • Common purpose timer

• Memories split per CPU
  

  • MLX16-FX memories:

    • 32 KB Flash with ECC

    • 10 KB ROM

    • 2 KB RAM

    • 512 B EEPROM

  • MLX4 memories:

    • 6 KB ROM

    • 512 B RAM

• Pin-compatible drivers in SO8 and QFN24
  

  • MLX81330 < 0.5A

  • MLX81332 < 1A

• Periphery
  

  • Configurable RC-clock 12..32 MHz

  • 8x general purpose IO’s, digital, analog, 1x high-voltage input, SPI, I2C-slave, UART

  • 5x 16-bit motor PWM timers

  • 2x 16-bit timers

  • 10-bit ADC with < 6 µs conversion time with multiple channels and different ADC references

  • Differential current sense amplifier

  • Temperature sensor, over-temperature detection

  • Over-current detection, over-voltage and under-voltage protection

• Voltage regulators
  

  • Internal voltage regulators, directly powered from 12V battery supply

  • Operating voltage Vs = 5.5V to 20V

  • Operation down to 3.5V with reduced analog characteristics, down to 3V without losing register content, down to 1.5V with intact RAM memory

  • Low standby current consumption of typ 25µA (max 50 µA) in sleep mode

  • Wake-up possible via LIN, external pins or internal wake-up timer

• Bus interface
  

  • LIN 2.x/SAE J2602 and ISO17987-4 compliant LIN slave

• Automotive AEC-Q100 qualified

• Designed for safety applications according to ASIL-B (ISO 26262)

• Maximum IC temperature (with validated mission profile) Tj = 175°C