Qorvo PAC5524 High Pin-Count Motor Controller & Driver

Qorvo PAC5524 High Pin-Count 70V Motor Controller and Driver is a Power Application Controller^© (PAC) optimized for a 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™. With these features, the PAC5524 forms an ideal compact microcontroller-based power and motor control solution.

The PAC5524 microcontroller offers 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 an “all-in-one” efficient power management solution for multiple types of power sources. The MMPM has a configurable multi-mode switching supply controller capable of operating a buck or SEPIC converter and up to four linear regulated voltage supplies. Additionally, the Application Specific Power Drivers (ASPD) are power drivers designed for a half-bridge, H-bridge, 3-phase, and general-purpose driving. Furthermore, 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 interconnective signal sampling, feedback amplification, and sensor monitoring of multiple analog input signals.

The PAC5524 High Pin-Count Motor Controller and Driver is available in an 8mm x 8mm, 64-lead, QFN package and is designed for compact battery-powered BLDC motor applications.

Features

Multi-Mode Power Manager™ (MMPM)
- Optional multi-mode switching supply controller configurable for DC/DC Buck or SEPIC topologies
- 20V max direct DC supply
- Integrated LDOs for MCU core, IO, analog with power and hibernate management
- Power and temperature monitor, warning and fault detection
- Low-power total hibernate mode, I_Q = 18µA
Configurable Analog Front-End™ (CAFE)
- Three differential programmable-gain amplifiers
- Four single-ended programmable-gain amplifiers
- 2.5V ADC reference
- Programmable over-current shutdown
- Hibernate push-button wake-up
- Power supply monitoring via ADC
Application-Specific Power Drivers™ (ASPD)
- Integrated level shifters and pre-drivers
- Three low-side and three high-side gate drivers with 1.5A gate driving capacity
- Break-before-make (BBM) hardware dead-time enforcement to prevent shoot-through
- Configurable propagation delay and fault protection
- OC, UV protection
MCU
- 150MHz Arm^® Cortex^®-M4F MCU
- Hardware multiplier and divider
- Single-precision Floating Point Unit (FPU)
- Nested Vectored Interrupt Controller (NVIC) with 32 interrupts and eight priority levels
- Clock-gating for low-power operation
- Embedded Trace Macrocell (ETM) for in-system debugging in real-time without breakpoints
Memory
- 128kB FLASH, 32kB SRAM with ECC
- 2 x 1kB INFO FLASH for manufacturing information
- 1 x 1kB INFO FLASH for user parameter storage and application configuration code
- Four-level user-configurable code protection

ADC
- 12-bit 2.5MSPS SAR ADC
- Dynamic Triggering and Sequence Engine (DTSE)
  - Up to 16 configurable sequences
  - Dedicated memory for conversion results
IO
- 3.3V digital input/output or analog input for ADC
- Configurable weak pull-up or pull-down
- 6mA to 25mA minimum configurable drive strength
- Flexible peripheral MUX allowing each IO pin to select from up to eight peripheral functions
- Flexible interrupt controller
Flexible Clock Control System (CCS)
- 300MHz PLL from internal 2% oscillator
- 20MHz ring oscillator
- Optional 20MHz external clock input
Timing Generators
- Four 16-bit PWM timers with up to 8 CCR output units each
- 24-bit SysTick count-down timer
- Windowed Watchdog Timer (WWDT)
- 24-bit Real-Time Clock (RTC) with calendar and alarm
- 2 x 24-bit General-purpose count-down timers with interrupt
- Hibernate wake-up timer for sleep modes from 0.125s to 8s
Communication Peripherals
- 3 x USART (UART or SPI)
- I²C master/slave
- SPI master/slave, up to 25MHz
- CAN 2.0B Controller
- SWD or JTAG serial debug interfaces
- Embedded Trace Macrocell (ETM)
8b/16b CRC Engine
96-bit Unique ID
Physical
- -40°C to +125°C ambient temperature range
- QFN 8mm x 8mm 64-pin package
  - Exposed pad for thermal management