1 Product Overview
The PAC5527 is a 48V Power Application Controller (PAC) product that is optimized for high-speed motor control and driving for
battery powered BLDC motors. The PAC5527 contains the PAC55xx MCU v1 while the PAC5527A 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 PAC5527 in this document refers to both the PAC5527 and PAC5527A.
The PAC5527 integrates a 150MHz Arm® Cortex®-M4F 32-bit microcontroller core with a highly configurable Power Manager, Active-
Semi’s proprietary and patent-pending Configurable Analog Front-EndTM and Application Specific Power DriversTM to form the most
compact microcontroller-based power and motor control solution available.
The PAC5527 features 128kB of embedded FLASH, 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 Power Manager provides “all-in-one” efficient power management solution for the application. It features a charge pump, buckboost
converter and 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 PAC5527 is available in a 48-pin, 6x6mm TQFN package.