New Industry Products

600V BLDC / PMSM Motor Controller and Driver

August 08, 2019 by Paul Shepard

Qorvo's PAC5256 belongs to Qorvo's Power Application Controller® (PAC) product family. This family features highly-optimized SOC devices that can implement BLDC or PMSM programmable motor controller and driver in a single integrated IC.

Targeted applications for the PAC5256 include power tools, garden tools, white goods, compressors and pumps, ac-powered fans, embedded speed controllers and general-purpose motor controllers. The product integrates a FLASH-based MCU, power management, high-side and low-side gate drivers and signal-conditioning components in a single product.

PAC5256 is optimized for ac-powered BLDC or PMSM motor control applications. PAC5256 includes optimized hardware support and software libraries for the IEC/UL 60730 Class B Safety standard.

PAC5256 contains a 50MHz Arm® Cortex®-M0 with 32kB of FLASH that can be used to implement high-performance motor control and supervisory applications. The MCU also contains motor control peripherals such as 10-bit 1 MSPS dual auto-sequencer ADC, pwm timers with hardware dead-time insertion, etc.

PAC 5256 block diagram. The PAC5256 is available in a 52-pin, 10x10mm QFN package.

The product contains an integrated n-channel buck dc-dc controller, a 5V / 200mA converter and multiple LDOs for system and power management components for the IC and other PCB system power supplies. The Application-Specific Power Drivers™ provide integrated gate drivers for use with an external inverter. The Configurable Analog Front-End™ (CAFE) provides signal-chain components such as differential and single-end amplifiers, comparators and DACs.

Key features:

  • Fully programmable 32-bit microcontroller
  • Integrated 600V dc-dc n-channel buck controller
  • Integrated 600V gate drivers (250mA / 500mA)
  • Integrated PGA (3 differential, 4 single-ended)
  • Integrated DACs and comparators
  • UART, I2C and SPI serial interfaces
  • Extremely low power total hibernate mode
  • 52-pin, 10x10mm QFN package
  • Minimal external components