Qorvo PAC5523AQM-T

Overview

PAC5523AQM-T from Qorvo is a Power Application Controller® integrating a 150 MHz Arm® Cortex®-M4F MCU core, Multi-Mode Power Manager™ (buck/SEPIC + 4 LDOs), Configurable Analog Front End™ (3 diff PGAs, 4 SE PGAs, 10 comparators, dual DACs), and Application Specific Power Drivers™ (6-channel gate drivers). It delivers sensorless BLDC motor control in a 48-pin 6×6 mm TQFN package with 128 kB FLASH and 32 kB SRAM.

For engineers reviewing the PAC5523AQM-T datasheet, pinout, applications, or equivalent options, key selection criteria include integrated power management topology support (buck/SEPIC), analog signal conditioning flexibility (programmable gain, dynamic ADC sequencing), gate driver timing resolution (3.3 ns dead-time control), and motor control-specific peripherals (QEP, HW PWM timers).

Technical Context

The PAC5523AQM-T implements a tightly coupled system-on-chip architecture where the MMPM provides configurable DC/DC conversion (buck or SEPIC) and four linear regulators, while the CAFE enables programmable analog signal routing via Configurable Analog/Digital Signal Matrices (CASM/CDSM) and dynamic triggering of the 2.5 MSPS 12-bit ADC. The ASPD block integrates six gate drivers-three high-side and three low-side-with fault protection, propagation delay matching (≤10 ns), and programmable dead-time generation.

Its Arm® Cortex®-M4F core runs at 150 MHz with hardware floating-point unit, NVIC, MPU, and ETM trace; memory subsystem includes 128 kB embedded FLASH with ECC, 32 kB SRAM, and code protection levels. Clocking supports ring oscillator, external crystal (1–25 MHz), and PLL up to 300 MHz for peripheral domain scaling.

Key Specifications

Pinout & Package

The PAC5523AQM-T is housed in a 48-pin, 6×6 mm TQFN package with an exposed thermal pad (package code: TQFN66-48). Pin assignment follows Qorvo's standardized layout for the PAC55xx family, optimized for motor drive PCB layout with dedicated power/ground separation and analog/digital isolation zones.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN32F0B and XMC4400-F100K512, the PAC5523AQM-T uniquely combines HV power conversion (up to 200 V), sensor-grade analog signal conditioning, and motor-optimized peripherals in one die-enabling complete 3-phase motor control with only 6 external MOSFETs and passive components.

Availability

PAC5523AQM-T is available at Aetrix Electronics and suitable for BLDC motor drives, power tools, ceiling fans, and HVAC compressor control requiring stable component supply across industrial production cycles.

Supply support for PAC5523AQM-T 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 focused on RF, power, and motion solutions for mobile, infrastructure, automotive, and industrial markets.

The PAC5523AQM-T belongs to Qorvo's Power Application Controller® family, designed specifically to replace discrete microcontroller + analog + power IC combinations in high-efficiency, space-constrained motor control systems.

FAQ

What is the maximum input voltage supported by the PAC5523AQM-T's MMPM for buck/SEPIC operation?

The PAC5523AQM-T's Multi-Mode Power Manager supports up to 200 V DC input on its VDDM rail for buck or SEPIC converter operation. This rating is validated per Absolute Maximum Ratings Table 6-1 and applies to continuous operation under specified thermal conditions with appropriate external MOSFETs and inductor selection.

Does the PAC5523AQM-T support CAN communication, and what version is implemented?

Yes, the PAC5523AQM-T includes a CAN 2.0B controller compliant with ISO 11898-1, supporting data rates up to 1 Mbps. It features dedicated CAN TX/RX pins, programmable bit timing, and hardware message filtering-enabling direct integration into industrial motor networks without external transceivers beyond physical layer interfacing.

How many independent PWM channels does the PAC5523AQM-T provide, and what is their timing resolution?

The PAC5523AQM-T provides up to 16 PWM channels across four 16-bit timers, with hardware dead-time control and 3.3 ns resolution for fine-grained timing adjustment. Each channel supports complementary output pairs, edge/center-aligned modes, and synchronization to ADC sampling triggers via the DTSE engine.

Can the PAC5523AQM-T operate without external crystal, and what are the clock accuracy implications?

Yes, the PAC5523AQM-T can operate using its internal ring oscillator (typical 12 MHz, ±10% variation) for non-timing-critical functions. For motor control requiring precise PWM carrier frequency or UART baud rate stability, Qorvo recommends using the external crystal input (1–25 MHz) with PLL multiplication to achieve <±100 ppm accuracy across temperature and voltage.

What analog input configurations does the PAC5523AQM-T's CAFE support for current sensing?

The PAC5523AQM-T's Configurable Analog Front End supports shunt-based current sensing using any of its three differential programmable gain amplifiers (PGAs), each configurable from 1× to 32× gain. These PGAs accept inputs directly from low-side or high-side shunts and route amplified signals to the 12-bit ADC with hardware-triggered sampling-enabling accurate, isolated current measurement without external op-amps.