1 Product Overview
The PAC5524 is a Power Application Controller© (PAC) product that is optimized for high-pin count and high-speed BLDC motor
control. The PAC5524 contains the PAC55xx MCU v1 while the PAC5524A contains the PAC55xx MCU v2. See the file “PAC55XX
MCU Changes” and the PAC55xx Family User’s Guide for more details on the differences between MCU v1 and MCU v2. Unless
specifically noted, the name PAC5524 in this document refers to both the PAC5524 and PAC5524A.
The PAC5524 integrates a 150MHz Arm® Cortex®-M4F 32-bit microcontroller core with Active-Semi’s proprietary and patent-pending
Multi-Mode Power ManagerTM, Configurable Analog Front-EndTM and Application Specific Power DriversTM to form the most compact
microcontroller-based power and motor control solution available.
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 generalpurpose
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, Hbridge,
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 interconnectible
signal sampling, feedback amplification, and sensor monitoring of multiple analog input signals.
The PAC5524 is packaged in an 8x8mm, 64-lead QFN package with for compact battery-powered BLDC motor applications.