PAC5556QXST

Overview

The PAC5556QXST is a Power Application Controller (PAC) integrating an ARM Cortex-M4F microcontroller, power management, half-bridge gate drivers, and an analog front end. Designed for high-voltage applications, it supports input voltages up to 600V. The device provides three PWM outputs and ADC inputs, facilitating control for BLDC and PMSM motors. It features interfaces including I2C, UART, SPI, and GPIO. The component is housed in a surface-mount package suitable for industrial and automotive sensorless or sensored motor control applications.

Feature Summary

• Integrates ARM Cortex-M4F MCU with 600V half-bridge gate drivers
• Supports BLDC and PMSM motor control algorithms
• Includes configurable analog front end with multiple ADC inputs
• Provides I2C, UART, SPI, and GPIO communication interfaces

Applications

• Industrial brushless DC motor drives
• Automotive motor control systems
• High-voltage appliance motor controllers

Part Context

The PAC5556QXST belongs to the Qorvo PAC55xx series of intelligent motor controllers. This family combines digital control logic with high-voltage analog drive capabilities on a single System-on-Chip (SoC). The specific suffix 'QXS' typically denotes the package type and temperature grade variations within the PAC5556 product line, distinguishing it from other packaging options like the standard QX variant.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the proprietary integration of the Cortex-M4F core and high-voltage drivers. Designers should evaluate alternative Qorvo PAC series devices such as the PAC5532 for lower voltage applications (160V) or verify compatibility with newer revisions of the PAC5556 family. Cross-referencing datasheets for electrical parameters and interface compatibility is essential.