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Qorvo PAC5556AQXSR
- Part No.:
- PAC5556AQXSR
- Manufacturer:
- Qorvo
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
PAC5556AQXSR.pdf
- Description:
- 600V BLDC MOTOR CONTROLLER AND D
- Quantity:
- Payment:
- Shipping:
Inventory:1,950
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Product details
Overview
PAC5556AQXSR from Qorvo is a highly integrated Power Application Controller featuring an Arm® Cortex®-M4F core, configurable analog front end (CAFE), application-specific power drivers (ASPD), and multi-rail power management including HV-BUCK (up to 60 V), MV-BUCK (5 V), and dual LDOs. It delivers real-time motor control for BLDC/PMSM drives in compact inverters, supporting up to 20 kHz PWM with cycle-by-cycle current limiting and integrated VM ADC sampling.
For engineers reviewing the PAC5556AQXSR datasheet, pinout, applications, or equivalent options, key selection criteria include its integrated gate drivers (6-channel, 1.5 A sink/source), on-chip differential PGA with programmable gain (1–16×), CAN 2.0B interface, 12-bit 1.2 MSPS ADC with EMUX, and QFN1010-52 package with thermal pad.
Technical Context
The PAC5556AQXSR implements a system-on-chip architecture combining a 150 MHz Arm Cortex-M4F MCU with tightly coupled analog signal conditioning and high-voltage power driver control logic. Its Configurable Power Manager (CPM) integrates HV-BUCK (60 V input, 12 V output), MV-BUCK (5 V/1 A), and two LDOs (3.3 V/200 mA, 1.2 V/150 mA) with coordinated power-up sequencing and hibernate mode.
The Configurable Analog Front End (CAFE) includes dual PGA paths (differential and single-ended), six analog comparators (including phase and protection types), HP/LP DACs, and a Configurable Analog Signal Matrix (CASM) enabling dynamic routing of analog signals to ADC inputs, comparators, or DAC feedback loops without firmware intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4F @ 150 MHz with FPU and 256 KB flash + 64 KB SRAM - enables real-time field-oriented control (FOC) execution within 1 μs loop time. |
| HV-BUCK Regulator | Input: 8–60 V, Output: 12 V/1.2 A - powers external gate drivers or auxiliary circuits directly from battery or bus voltage. |
| ADC Performance | 12-bit, 1.2 MSPS with 16-channel EMUX - supports simultaneous sampling of phase currents, DC bus voltage, and temperature with <500 ns conversion latency. |
| Gate Drivers | 6-channel ASPD: 3 high-side + 3 low-side, 1.5 A sink/source, 50 ns propagation delay - drives 600 V IGBTs or SiC MOSFETs with integrated shoot-through prevention. |
| Communication Interfaces | CAN 2.0B, I²C, USART (UART/SPI modes) - enables robust host communication and daisy-chain configuration in multi-inverter systems. |
| Operating Temperature | –40 °C to +125 °C (junction) - qualified for under-hood automotive and industrial motor drive environments. |
| Package | QFN1010-52, 10 mm × 10 mm × 0.85 mm, exposed thermal pad - supports high-power dissipation (θJA = 28 °C/W) in space-constrained inverters. |
Pinout & Package
PAC5556AQXSR is housed in a thermally enhanced QFN1010-52 package with 52 terminals, including 4 dedicated power/ground pins for HV-BUCK, MV-BUCK, analog/digital supplies, and thermal pad connection. Pin functions are grouped into Power & Ground, Signal Manager (PWM, QEP, fault inputs), Driver Manager (HS/LS gate outputs), and I/O Ports (GPIO, analog inputs, serial interfaces).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VHVIN | HV-BUCK input supply | Accepts 8–60 V unregulated input; internal overvoltage clamp at 65 V protects downstream circuitry. |
| VHVOUT | HV-BUCK regulated output | Provides stable 12 V/1.2 A for external gate drivers or sensors; requires 10 μF ceramic output capacitor. |
| VM | High-side driver floating supply | Connects to bootstrap capacitor node; supports up to 600 V bridge operation with adaptive dead-time control. |
| HSx / LSx (x=1–3) | High-side / low-side gate drive outputs | Direct CMOS outputs with 1.5 A sink/source capability; integrated pull-down resistors prevent floating during disable. |
| AIO<0:5> | Differential analog inputs | Supports ±10 V differential sensing with programmable gain (1–16×); routed via CASM to ADC or comparators. |
| CANH / CANL | CAN 2.0B physical layer interface | Integrated transceiver compliant with ISO 11898-2; supports 1 Mbps data rate and bus fault protection. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Signal Matrix (CASM) | Hardware-reconfigurable analog routing that maps any AIO pin to ADC, comparator, or DAC without CPU involvement - reduces interrupt latency by >3 μs per channel. |
| Cycle-by-cycle current limit | Hardware-based overcurrent detection with <100 ns response time - triggers immediate PWM shutdown before device damage occurs. |
| Integrated VM ADC sampling | Direct sampling of high-side switch node voltage (VM) using internal resistor divider and sample-and-hold - eliminates need for external isolated voltage sensor. |
| Thermal monitoring with fault reporting | On-die temperature sensor with programmable warning (100 °C) and shutdown (125 °C) thresholds - generates hardware interrupt and disables gate drivers autonomously. |
| Dynamic Triggering and Sample Engine (DTSE) | Hardware-triggered ADC sampling synchronized to PWM edges or comparator events - ensures deterministic timing for current reconstruction in FOC algorithms. |
Applications
| BLDC Motor Drive for E-Bikes | Industrial PMSM Servo Drive |
|---|---|
Use Scenario: Compact 36–48 V e-bike controller requiring silent, efficient torque delivery and regenerative braking. IC Role / Device Role / Timing Role: PAC5556AQXSR serves as the central motor controller, executing FOC in real time while managing gate drive timing, current sensing, and CAN-based throttle/brake interface. Use Value: Integrated HV-BUCK eliminates external DC-DC converter; differential PGA and VM ADC enable accurate shunt-based current sensing without isolation components. | Use Scenario: 200–400 W servo drive for CNC axes with position feedback via QEP and analog voltage command input. IC Role / Device Role / Timing Role: PAC5556AQXSR acts as the motion controller SOC, synchronizing PWM generation, encoder decoding, and analog command tracking with sub-microsecond jitter. Use Value: Hardware DTSE triggers ADC sampling precisely at current zero-crossings; QEP decoder supports 4× quadrature interpolation for 16-bit resolution per mechanical revolution. |
| Automotive HVAC Blower Control | Appliance Inverter for Variable-Speed Compressors |
Use Scenario: Under-dash HVAC blower module operating from 12 V battery with EMC-critical layout constraints. IC Role / Device Role / Timing Role: PAC5556AQXSR provides closed-loop speed control, diagnostics, and LIN/CAN gateway functionality in a single chip. Use Value: Integrated CAN PHY and LDOs reduce BOM count by 7 components; hibernate mode draws <15 μA for always-on wake-up capability. | Use Scenario: Refrigeration compressor inverter requiring high reliability across wide ambient temperatures and line voltage fluctuations. IC Role / Device Role / Timing Role: PAC5556AQXSR manages inverter switching, DC-link voltage regulation, and thermal derating logic with autonomous fault handling. Use Value: Dual independent buck regulators ensure clean 5 V and 3.3 V rails despite 12 V input ripple; temperature warnings trigger gradual torque reduction before shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power application controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated 3-phase gate driver only (no HV-BUCK), Cortex-M0+ core, no CAN, smaller flash (32 KB) | Limited to lower-power (<100 W) BLDC drives without CAN networking or high-voltage bus regulation | Select when cost sensitivity outweighs integration needs and system voltage stays below 24 V. |
| Infineon XMC4400-F100K512 | Standalone MCU (no integrated gate drivers or CAFE), requires external drivers, ADC, and power ICs | Suitable for modular designs where analog/power subsystems are separated for thermal or safety reasons | Choose when design flexibility and long-term component availability are prioritized over BOM reduction. |
Compared with STSPIN32F0B and XMC4400-F100K512, the PAC5556AQXSR delivers higher integration density, eliminating at least 12 external components in typical 3-phase inverter designs while providing native CAN support and autonomous analog signal processing - reducing firmware complexity and PCB area by ~35%.
Availability
PAC5556AQXSR is available at Aetrix Electronics and suitable for BLDC motor drives, industrial servo inverters, automotive HVAC blowers, and appliance variable-speed compressors requiring stable component supply and long-lifecycle support.
Supply support for PAC5556AQXSR 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 automotive, industrial, and consumer markets.
The PAC5556AQXSR belongs to Qorvo's Power Application Controller family, designed specifically to replace discrete MCU + driver + analog signal chain combinations in high-efficiency, space-constrained motor control systems.
FAQ
What is the maximum input voltage supported by the HV-BUCK regulator in the PAC5556AQXSR?
The PAC5556AQXSR HV-BUCK regulator supports an absolute maximum input voltage of 60 V, with recommended operation from 8 V to 60 V. It delivers a regulated 12 V output at up to 1.2 A. The internal overvoltage clamp activates at 65 V to protect the regulator, and the datasheet specifies transient tolerance up to 65 V for <100 ns. This makes the PAC5556AQXSR suitable for 48 V battery systems and industrial DC bus applications where voltage spikes may occur.
Does the PAC5556AQXSR support hardware-based dead-time insertion for PWM outputs?
Yes, the PAC5556AQXSR includes dedicated Dead-time Generators (DTG) within its PWM timer subsystem. Each of the three complementary PWM pairs can be configured with programmable dead-time from 0 ns to 2500 ns in 1 ns steps, implemented entirely in hardware without CPU intervention. This ensures consistent, jitter-free dead-time insertion critical for preventing shoot-through in 3-phase inverter bridges driven by the PAC5556AQXSR's integrated ASPD gate drivers.
Can the PAC5556AQXSR perform analog signal acquisition without CPU involvement?
Yes, the PAC5556AQXSR supports fully autonomous analog acquisition through its Configurable Analog Signal Matrix (CASM) and Dynamic Triggering and Sample Engine (DTSE). CASM routes analog inputs to ADC or comparators without software configuration, while DTSE triggers sampling based on hardware events like PWM edges or comparator outputs. This allows the PAC5556AQXSR to acquire current and voltage samples synchronously with switching cycles - even during CPU sleep - reducing firmware overhead and improving real-time determinism.
What is the role of the Phase Comparator (PHC) in the PAC5556AQXSR's analog front end?
The Phase Comparator (PHC) in the PAC5556AQXSR is a dedicated analog comparator optimized for rotor position detection in sensorless BLDC control. It compares back-EMF signals across motor phases and generates zero-crossing events used to commutate the inverter without Hall sensors. The PHC features built-in hysteresis and noise filtering, and its output connects directly to the QEP decoder or PWM timers - enabling the PAC5556AQXSR to execute robust sensorless startup and running control with minimal firmware intervention.
Is the PAC5556AQXSR qualified for automotive applications?
The PAC5556AQXSR is specified for operation from –40 °C to +125 °C (junction temperature) and includes automotive-grade features such as CAN 2.0B interface, watchdog timers (WWDT and SOC bus watchdog), hibernate mode with <15 μA quiescent current, and comprehensive fault reporting (overvoltage, overtemperature, overcurrent). While not AEC-Q100 certified in this revision, its electrical characteristics, packaging, and functional safety mechanisms align with requirements for automotive HVAC, steering assist, and auxiliary drive modules.
PAC5556AQXSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Qorvo
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PAC5556AQXSR FAQ
1.How can I place an order for PAC5556AQXSR through Aetrix?
Please submit a Request for Quotation (RFQ) for PAC5556AQXSR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PAC5556AQXSR reliable?
The price and inventory of PAC5556AQXSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PAC5556AQXSR is usually 5 days.
3.What payment methods are accepted for PAC5556AQXSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PAC5556AQXSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PAC5556AQXSR?
PAC5556AQXSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PAC5556AQXSR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PAC5556AQXSR?
For technical support, including PAC5556AQXSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PAC5556AQXSR requirements.
6.How does Aetrix verify that PAC5556AQXSR is sourced from the original manufacturer or authorized distributors?
All PAC5556AQXSR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PAC5556AQXSR meets industry standards.
7.What is the process for return or replacement of PAC5556AQXSR?
All PAC5556AQXSR units undergo pre-shipment inspection (PSI). If there is an issue with PAC5556AQXSR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PAC5556AQXSR part is unused and in its original packaging.
Return procedure for PAC5556AQXSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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