70V Motor Controller and Driver for BLDC Motors – Plus Eval KitJanuary 03, 2020 by Paul Shepard
The PAC5524 from Qorvo is a Power Application Controller© (PAC) product that is optimized for high-pin count and high-speed BLDC motor control. The PAC5524 integrates a 150MHz Arm® Cortex®-M4F 32-bit microcontroller core with Active-Semi's proprietary and patent-pending Multi-Mode Power Manager™, Configurable Analog Front-End™ and Application Specific Power Drivers™ to form the most compact microcontroller-based power and motor control solution available.
Qorvo also offers the PAC5524EVK1 evaluation kit (pictured above) is a complete hardware solution enabling users to evaluate the PAC5524 device, but also develop motor control applications revolving around the powerful and versatile 150MHz Arm® Cortex® -M4F based MCU. This evaluation kit is a motor controller and driver evaluation PCB, that uses the PAC5524 Power Application Controller®.
The PAC5524 microcontroller features 128kB of embedded FLASH and 32kB of SRAM memory, a 2.5MSPS analog-to-digital converter (ADC) with programmable auto-sampling of up to 24 conversion sequences, 3.3V IO, flexible clock control system, PWM and general-purpose timers and several serial communications interfaces.
The Multi-Mode Power Manager (MMPM) provides "all-in-one" efficient power management solution for multiple types of power sources. It features a configurable multi-mode switching supply controller capable of operating a buck or SEPIC converter and up to four linear regulated voltage supplies.
The Application Specific Power Drivers (ASPD) are power drivers designed for half bridge, H-bridge, 3-phase, and general-purpose driving.
The Configurable Analog Front End (CAFE) comprises differential programmable gain amplifiers, single-ended programmable gain amplifiers, comparators, digital-to-analog converters, and I/Os for programmable and inter-connectible signal sampling, feedback amplification, and sensor monitoring of multiple analog input signals.
The PAC5524 is packaged in an 8 x 8 mm, 64-lead QFN package with for compact battery-powered BLDC motor applications.
- Fully programmable, high performance 32-bit microcontroller
- Integrated 70V dc-dc buck or SEPIC controller
- 128kB flash
- Integrated 70V / 1.5A gate drivers
- Integrated PGA (3 differential, 4 single-ended)
- Integrated DACs and comparators
- UART, CAN, I2C and SPI serial interfaces
- Extremely low power total hibernate mode
- Minimal external components