Qorvo PAC5526AQMSR

Overview

PAC5526AQMSR from Qorvo is a 48V Power Application Controller® (PAC) integrating a 150MHz Arm® Cortex®-M4F MCU v2 core, 128kB FLASH/32kB SRAM, 2.5MSPS 12-bit ADC, configurable analog front-end (CAFE), and application-specific power drivers (ASPD) for BLDC motor control. It delivers integrated gate drive (3 high-side/3 low-side), buck-boost (10V/12V) and charge pump (VM + VP) power management, and operates across –40°C to 125°C in battery-powered e-bike, power tool, and HVAC blower systems.

For engineers reviewing the PAC5526AQMSR datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, confirmed motor-control-specific features, real-world application mappings, and two rigorously cross-checked alternative parts with documented functional and packaging differences.

Technical Context

The PAC5526AQMSR implements a tightly coupled SoC architecture where the Arm Cortex-M4F core directly controls PWM timing engines (32 blocks), hardware dead-time generators (16), and DTSE-triggered ADC sampling-enabling cycle-by-cycle current limiting and sensorless FOC execution. Its Power Manager integrates HVCP (VM + VP output), MVBB (configurable 10V/12V), and five LDOs (VSYS/VCCIO/VCC33/VCORE/VCC18), all managed via on-chip hibernate logic with 5µA IQ.

The Configurable Analog Front-End (CAFE) includes one differential PGA, five single-ended PGAs, two 10-bit DACs, six AIO pins, and programmable over-current protection-interfacing directly with ASPD drivers and ADC inputs without external signal conditioning. All ASPD outputs support 100% duty cycle and cycle-by-cycle fault response with dedicated high-side/low-side gate driver terminals.

Key Specifications

Pinout & Package

Package: 48-pin TQFN (6×6mm, exposed thermal pad), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control applications.

Compared with STSPIN32F0B and XMC4400-F100K512, PAC5526AQMSR uniquely integrates MCU, power management, and gate drivers into a single 6×6mm package-reducing BOM count by ≥12 components and eliminating inter-stage layout complexity in 48V BLDC designs.

Availability

PAC5526AQMSR is available at Aetrix Electronics and suitable for e-bike motor controllers, cordless power tool drives, HVAC blower modules, industrial conveyors, and portable medical pumps requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for PAC5526AQMSR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Qorvo is a U.S.-based semiconductor company specializing in RF, power management, and motion control solutions for high-efficiency, high-reliability applications.

The PAC5526AQMSR belongs to Qorvo's Power Application Controller® family, designed specifically to replace discrete MCU + gate driver + regulator combinations in compact, battery-powered BLDC motor systems.

FAQ

What is the core architecture and clock speed of the PAC5526AQMSR?

The PAC5526AQMSR integrates a 150MHz Arm Cortex-M4F 32-bit microcontroller core with single-cycle hardware multiplier, 32-bit divider, single-precision FPU, and 8-region MPU. This core executes FOC algorithms and real-time motor control tasks with deterministic latency. The PAC5526AQMSR supports PLL-based clock scaling up to 300MHz for PWM timing resolution, and includes a 20MHz ring oscillator for fail-safe operation. Its clock tree delivers independent FRCLK, SCLK, PCLK, ACLK, and HCLK domains to peripherals.

Does the PAC5526AQMSR include integrated power management, and what are its key outputs?

Yes, the PAC5526AQMSR includes a fully integrated Power Manager with three primary outputs: HVCP (VM + VP) for high-side gate drive, MVBB (configurable 10V or 12V) for low-side gate drive, and five linear regulators (VSYS/VCCIO/VCC33/VCORE/VCC18). The HVCP supports up to 48V input and delivers regulated high-side supply without external charge pump ICs. The MVBB uses an internal buck-boost topology with 1.33MHz switching frequency and supports 10µH inductors. All regulators include power-good monitoring and hibernate-mode control.

How does the Configurable Analog Front-End (CAFE) function in the PAC5526AQMSR?

The PAC5526AQMSR's CAFE comprises one differential PGA, five single-ended PGAs, two 10-bit DACs, six AIO pins, and programmable comparators-including a dedicated protection comparator (PCMP) for over-current detection. It enables direct connection to shunt resistors, hall sensors, and thermistors without external signal conditioning. The CAFE's Configurable Analog Signal Matrix (CASM) routes signals flexibly between PGAs, ADC inputs, and DAC outputs, allowing real-time gain adjustment and feedback loop closure entirely within the PAC5526AQMSR.

What gate driver capabilities does the PAC5526AQMSR provide for BLDC motor control?

The PAC5526AQMSR integrates six application-specific power drivers (ASPD): three high-side (DRH1–DRH3) and three low-side (DRL1–DRL3), each supporting 1A peak sink/source current. High-side drivers operate referenced to their respective DRSx source pins and support 100% duty cycle-essential for active freewheeling and regenerative braking. All drivers feature cycle-by-cycle current limiting, programmable blanking time, and configurable fault responses (trip, latch, or auto-restart), eliminating need for external driver ICs and discrete protection circuitry.

What communication interfaces are supported by the PAC5526AQMSR?

The PAC5526AQMSR supports three USARTs (configurable as SPI or UART up to 25MHz/1Mbps), one I²C master/slave interface, one CAN 2.0B controller, SWD/JTAG debug interface, and Embedded Trace Macrocell (ETM). The CAN interface supports bit rates up to 1Mbps and includes message objects with hardware filtering-enabling robust communication in noisy motor environments. USARTs support automatic baud rate detection and LIN-compatible break detection, while I²C supports standard/fast-mode plus 10-bit addressing for sensor networks.