1 GENERAL DESCRIPTION

The PAC5556 is a Power Application Controller® (PAC) product that is optimized for high-voltage, high-speed BLDC or

PMSM motor control. The PAC5556 integrates a 150MHz Arm® Cortex®-M4F 32-bit microcontroller core with a highly

configurable Power Manager, Active-Semi’s Configurable Analog Front-EndTM and Application Specific Power DriversTM to

form the most compact microcontroller-based power and motor control and drive solution available.

The PAC5556 microcontroller features 128kB of embedded FLASH and 32kB of SRAM memory, a 2.5MSPS analog-todigital

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 Configurable Power Manager (CPM) provides “all-in-one” efficient power management solution for multiple types of

power sources. It features a configurable high-voltage buck controller (HV-BUCK), a configurable medium-voltage switching

regulator (MV-BUCK), and four linear regulated voltage supplies. The Application Specific Power Drivers (ASPD) are 600V

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.