Brushless DC Drivers

90V Automotive Three-phase Motor Driver with Integrated ARM M4 Cortex MCU

A89224

The A89224 is a highly integrated automotive MCU for 48V BLDC motor control, combining a 32-bit ARM Cortex-M4 core, a 90V MOSFET driver, and precision current sensing. This compact solution simplifies design, reduces external components, and is automotive-grade qualified.

Product Details

Top Features

  • 5.5 to 90V supply voltage operating range
  • 32-bit, 40MHz ARM Cortex M4 CPU Core 
  • Up to 256kByte Flash, 32kByte DRAM
  • 80MHz PWM Generator
  • 3-phase bridge MOSFET driver with bootstrap gate drive for N-channel MOSFET bridge
  • Programmable 3-channel Current Acquisition Unit (CAU) for BLDC motor
  • 12-bit 1μs Data Acquisition Unit (DAU) for voltage measurement
  • 1-phase BEMF detector
  • Automotive AEC-Q100 qualified

On-Chip Memory

  • 32kByte DRAM
  • 8kByte IRAM
  • 32kByte Boot ROM
  • On-chip ±1% accurate oscillator
  • Programmable clock generator
  • One clock per machine cycle architecture
  • DMA • 16 Level Interrupt Handler
  • SW-DP 2-wire debug
  • Charge pump for low supply voltage operation.
  • 3.3V or 5V CMOS compatible logic I/O • 12-bit PWM at 20kHz
  • Programmable bemf and current sample control
  • Programmable high-performance current sense amplifier
  • 3 x 12 bit, 1μs ADC for current measurement
  • 8 general purpose I/O ports (GPIO)
  • 8 General purpose timers
  • 2 Serial Communication Interfaces (SCI)
  • LIN Data Link Layer
  • 1-phase BEMF detector
  • Integrated power management
  • VDS, UVLO, and thermal shutdown Diagnostic
  • Latched TSD with fault output

Part Number Specifications and Availability

Design Tools