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

A89224-A, A89224-B

48 Pin 7x7 EV Package

The A89224 family of devices is a 48V-capable, automotive 3-phase BLDC driver with an integrated Arm M4 Cortex with up to 256kB of flash. It is ideal for sensorless FOC control of 3-phase BLDC and PMSM motor control applications, such as automotive fans and pumps.

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Description

Top Features

Typical Applications

Packaging

The A89224 is a game-changing automotive MCU designed to simplify and enhance your 48V BLDC motor control applications. This highly integrated device combines a powerful 32-bit ARM Cortex-M4 core, a robust 90V MOSFET driver, and precision current sensing, all within a compact 48-pin QFN package. This unprecedented level of integration minimizes external components, reduces board space, and accelerates your time to market.

Using the A89224 family allows users to reduce development time and costs with its simplified design and integrated features, improve motor performance and efficiency through precise control and current sensing and enhance system reliability with robust automotive-grade qualification.

  • 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

48 Pin 7x7 EV Package 

EV Package Documentation

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Part Number Specifications and Availability