Smart LIN pre-driver for DC and BLDC motors <500W

Top features

• LIN Motor driver

  • 3x PreDriver for DC or BLDC motor

  • Up to 60nC NFETs (500W motors)

    • 300 mApk typ. charge current

    • 500 mApk typ. discharge current

  • charge-pump for top-NFETs

  • VDS protection for all NFETs

• Microcontroller

  • MLX16-FX, application CPU

  • MLX4, communication CPU

  • Programmable digital watch-dog

  • Interrupt controller

  • Common purpose timer

• Memories split per CPU

  • MLX16-FX memories:

    • MLX81340: 32 KB Flash with ECC

    • MLX81344: 64 KB Flash with ECC

    • 20 KB ROM

    • MLX81340: 2 KB RAM

    • MLX81344: 4 KB RAM

    • 576 B EEPROM

  • MLX4 memories:

    • 6 KB ROM

    • 512B RAM

• Fast end-of-line programming via LIN pin (64 KB Flash in < 4sec)

• Pin-compatible family in QFN24 or QFN32

  • MLX81340: 58KB Flash+ROM

  • MLX81344: 90KB Flash+ROM

• Periphery

  • Configurable RC-clock 12..32MHz

  • 12x general purpose IO’s, digital, analog, 3x high-voltage IO’s, 2x UART, SPI, I2C-slave

  • 5x 16-bit motor PWM timers

  • 2x 16-bit timers

  • 12-bit ADC with < 1.2μs conversion time with 29 channels

  • Differential current sense amplifier with 8-bit programmable overcurrent

  • Temperature sensor, over-temperature detection

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

• Voltage regulators

  • IC operating motor voltage VSM = 5.5V to 32V* (*operating voltage up to 36V limited to 24h over lifetime)

  • Operating voltage VS = 5.5V to 32V* (*operating voltage up to 36V limited to 24h over lifetime)

  • Internal voltage regulators, directly powered from VS supply

  • Operation down to 3.5V with reduced analog characteristics, down to 3.0V without losing register content, down to 1.6V with intact RAM memory

  • Low standby current consumption of typ 25μA 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