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Texas Instruments TMS320F28052PNQ
- Part No.:
- TMS320F28052PNQ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28052PNQ.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
TMS320F28052PNQ from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 12-bit ADC (3.75 MSPS), 14 ePWM channels, and dual-zone security-designed for automotive-grade motor control in air conditioner outdoor units and BLDC drives.
For engineers reviewing the TMS320F28052PNQ datasheet, TMS320F28052PNQ pinout, TMS320F28052PNQ application, or TMS320F28052PNQ equivalent, key selection factors include AEC Q100 qualification, on-chip PGAs (gain ≈ 3/6/11), 42 GPIO with input filtering, and 80-pin LQFP package with automotive temperature range (–40°C to 125°C).
Technical Context
This MCU implements a Harvard-architecture 32-bit C28x CPU with atomic operations and unified memory model, paired with an independent 32-bit floating-point CLA for real-time control law execution. It integrates analog front-end peripherals including seven comparators, three internal DACs, one buffered reference DAC, four PGAs, and dual-sample-and-hold ADC.
Clocking relies on two internal zero-pin oscillators or external crystal/XCLKIN, with watchdog timer, missing-clock detection, and JTAG boundary scan (IEEE 1149.1). Power management includes single 3.3-V supply operation, integrated POR/BOR, and low-power modes-all qualified per AEC Q100 Grade 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point core at 60 MHz (16.67-ns cycle time), enabling deterministic real-time loop execution in motor control. |
| CLA | Independent 32-bit floating-point math accelerator-offloads PID, FOC, and observer calculations from main CPU. |
| ADC | 12-bit, 3.75 MSPS, 16-channel with dual sample-and-hold-supports simultaneous sampling for current/voltage sensing in 3-phase inverters. |
| ePWM | 14 channels with high-resolution dead-time control and trip-zone inputs-enables precise gate drive timing for IGBT/MOSFET half/full-bridges. |
| Analog Front End | 7 comparators + 3 internal DACs + 1 buffered VREFOUT DAC + 4 PGAs (gain ≈ 3/6/11)-allows direct analog signal conditioning and PWM modulation without external op-amps. |
| Security | Dual-zone security module with 128-bit key, secure ROM, and lockable flash/SARAM-prevents firmware reverse-engineering in automotive ECUs. |
| Temperature Range | –40°C to 125°C (AEC Q100 Grade 1 qualified)-validated for under-hood and powertrain applications. |
| Package | 80-pin LQFP (12.0 mm × 12.0 mm), PN suffix-standard surface-mount footprint compatible with industrial reflow profiles. |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, with exposed thermal pad (not electrically connected). Pin assignments follow TI's standardized 2805x 80-pin PN mapping, supporting JTAG debug, ePWM, ADC, CAN, SPI, I²C, and UART interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power/ground | Isolates sensitive ADC and comparator circuitry from digital noise; requires local 2.2-μF decoupling. |
| VDD / VSS | CPU/digital logic power/ground | Supplies 1.8-V core via internal regulator; each VDD pin needs ≥1.2-μF capacitor. |
| VDDIO / VSS | I/O buffer power/ground | 3.3-V domain for GPIO, peripheral I/O, and Flash interface; decoupling required per pin. |
| X1 / X2 | Crystal oscillator terminals | Supports external 1.8-V crystal/resonator (disabled by default when internal oscillators used). |
| TRST / TCK / TMS / TDI / TDO | JTAG test access port | IEEE 1149.1-compliant debug interface; TRST requires external 2.2-kΩ pulldown for functional mode. |
| GPIO0–GPIO42 | Multiplexed general-purpose I/O | 42 pins with programmable pullup, input filtering, and peripheral alternate functions (ePWM, eCAP, eQEP, SCI, etc.). |
| ADCINA0–ADCINA7 / ADCINB0–ADCINB7 | Analog input channels | 16 total ADC inputs across two groups; op-amp-marked channels support direct PGA input routing. |
| VREFHI / VREFLO | ADC reference inputs | VREFHI accepts external reference or internal VREFOUT; VREFLO tied to ground for fixed 0–3.3-V full-scale range. |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3-V supply with internal 1.8-V regulator | Eliminates need for external DC/DC converter; no power sequencing required-reduces BOM count and layout complexity. |
| Integrated analog front end (AFE) | 7 comparators + 4 PGAs + 3 DACs + 1 buffered VREFOUT DAC enables closed-loop analog signal conditioning within MCU-no external op-amp or DAC needed for basic motor current sensing. |
| AEC Q100 Grade 1 qualification | Validated for automotive applications up to 125°C ambient-meets reliability, ESD, and lifetime requirements for powertrain and chassis modules. |
| Peripheral Interrupt Expansion (PIE) block | Centralized, prioritized interrupt routing for all peripherals-including ePWM, eCAP, ADC, CAN, and serial interfaces-ensures deterministic latency in real-time control loops. |
| Code compatibility with prior C28x MCUs | Enables reuse of legacy motor control firmware and toolchain investments-reduces development time for migration from F2802x/F2803x families. |
| Secure boot and memory protection | Dual-zone security with 128-bit key prevents unauthorized code execution and memory read-out-critical for protecting proprietary motor algorithms in OEM ECUs. |
Applications
| Air Conditioner Outdoor Unit | Inverter Motor Control |
|---|---|
Use Scenario: Variable-speed compressor drive in residential/commercial HVAC systems requiring high-efficiency PFC and inverter stages. IC Role / Device Role / Timing Role: Real-time controller managing dual-loop (PFC + inverter) PWM generation, current sensing, thermal monitoring, and communication with indoor unit. Use Value: Integrated 14-channel ePWM with trip zones and 3.75 MSPS ADC enables precise 3-phase current sampling and fast overcurrent shutdown-meeting IEC 60335 safety requirements. | Use Scenario: Closed-loop field-oriented control (FOC) of permanent magnet synchronous motors (PMSM) in industrial pumps and fans. IC Role / Device Role / Timing Role: Primary motion controller executing FOC algorithm, space-vector modulation, and encoder-based position feedback via eQEP. Use Value: CLA accelerator offloads trigonometric and matrix computations from C28x CPU-achieving sub-1-µs current loop update times at 60 MHz. |
| Automotive BLDC Drive | AC-Input BLDC Motor Drive |
Use Scenario: Electric power steering (EPS) or HVAC blower module in passenger vehicles requiring AEC Q100 compliance and functional safety readiness. IC Role / Device Role / Timing Role: Safety-aware motor controller performing sensorless or hall-based commutation, fault diagnostics, and CAN communication with vehicle network. Use Value: Dual-zone security and watchdog timer with missing-clock detection support ASIL-B decomposition-enabling ISO 26262-compliant system architecture without external safety monitor. | Use Scenario: High-efficiency ceiling fan or smart appliance drive accepting universal AC input (90–264 VAC) with active PFC and inverter output. IC Role / Device Role / Timing Role: Unified controller handling rectified AC voltage regulation, PFC stage control, and BLDC commutation using single-chip solution. Use Value: On-chip comparators with internal DAC references enable analog overvoltage/overcurrent protection-eliminating discrete protection ICs and reducing component count by ≥3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28054PNQ | 64 KB Flash (vs. 32 KB), 10 KB SARAM (vs. 8 KB), same peripherals and AEC Q100 rating. | Supports larger control algorithms and dual-motor control; suitable when firmware size exceeds 32 KB. | Select TMS320F28054PNQ if additional Flash/SARAM is required for complex observer models or dual-axis control. |
| TMS320F28052MPTQ | Same Flash/SARAM, but InstaSPIN-MOTION enabled (ROM-based motion control library); different package (64-pin TQFP vs. 80-pin LQFP). | Pre-integrated motion control firmware reduces development time for positioning systems-but lacks 80-pin I/O flexibility and PGA count of TMS320F28052PNQ. | Choose TMS320F28052MPTQ only for rapid prototyping of motion profiles where I/O count and analog integration are secondary to library availability. |
Compared with TMS320F28054PNQ, the TMS320F28052PNQ trades Flash capacity for cost-sensitive automotive volume production; versus TMS320F28052MPTQ, it prioritizes hardware flexibility and analog integration over precompiled motion libraries-making it optimal for custom FOC/PFC implementations requiring full peripheral access.
Availability
TMS320F28052PNQ is available at Aetrix Electronics and suitable for automotive BLDC drives, air conditioner outdoor units, and inverter motor control applications requiring stable component supply, AEC Q100 qualification, and long-term lifecycle support.
Supply support for TMS320F28052PNQ 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in industrial and automotive electronics.
The TMS320F2805x product line delivers entry-performance real-time control MCUs optimized for cost-sensitive motor control, digital power, and automotive subsystems-balancing C28x computational capability with high analog integration in compact packages.
FAQ
What is the maximum operating frequency of the TMS320F28052PNQ?
The TMS320F28052PNQ operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is guaranteed across the full automotive temperature range (–40°C to 125°C) and supports deterministic real-time execution of motor control algorithms. The CLA accelerator runs independently at the same clock rate, enabling parallel processing of floating-point intensive tasks without CPU intervention. All timing specifications in the SPRS797F datasheet are validated for the TMS320F28052PNQ under AEC Q100 conditions.
Does the TMS320F28052PNQ include an integrated voltage regulator?
Yes, the TMS320F28052PNQ includes an internal 1.8-V voltage regulator (VREG) controllable via the VREGENZ pin. When VREGENZ is tied low, the regulator powers the C28x core and CLA; when tied high, an external 1.8-V supply must be provided. This eliminates the need for an external DC/DC converter in most designs. The regulator supports single 3.3-V rail operation with no power sequencing requirement-verified in the recommended operating conditions table of the TMS320F28052PNQ datasheet.
How many analog comparators does the TMS320F28052PNQ have, and what are their key features?
The TMS320F28052PNQ integrates seven analog comparators, each configurable with internal 6-bit DAC references and routable directly to ePWM trip-zone inputs. Three comparators include integrated DACs for programmable threshold generation, and one buffered reference DAC (VREFOUT) provides stable 1.2-V output. These comparators support fast overcurrent protection (<100 ns response) and enable hardware-based fault responses without CPU involvement-critical for IGBT short-circuit protection in inverter designs using the TMS320F28052PNQ.
What communication interfaces are supported by the TMS320F28052PNQ?
The TMS320F28052PNQ supports three SCI/UART modules, one SPI module, one I²C bus, and one enhanced CAN (eCAN) interface. All are accessible via multiplexed GPIO pins in the 80-pin LQFP package. The eCAN module complies with ISO 11898-1 and supports bit rates up to 1 Mbps-enabling robust communication with vehicle networks. The SCI modules support auto-baud detection and LIN-compatible break detection, making them suitable for both diagnostic and control messaging in automotive applications using the TMS320F28052PNQ.
Is the TMS320F28052PNQ pin-compatible with other devices in the F2805x family?
Yes, the TMS320F28052PNQ is pin-compatible with all 80-pin PN-package variants in the F2805x family-including TMS320F28054PNQ, TMS320F28053PNQ, and TMS320F28055PNQ-as confirmed in TI's Device Comparison table (SPRS797F, Table 5-1). All share identical pin assignments, electrical characteristics, and thermal resistance for the PN package. This allows hardware reuse across performance tiers; however, differences in Flash size, SARAM, and CLA presence require firmware validation when migrating between variants like TMS320F28052PNQ and TMS320F28054PNQ.
TMS320F28052PNQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 60MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 64KB (32K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28052PNQ FAQ
1.How can I place an order for TMS320F28052PNQ through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28052PNQ 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 TMS320F28052PNQ reliable?
The price and inventory of TMS320F28052PNQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28052PNQ is usually 5 days.
3.What payment methods are accepted for TMS320F28052PNQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28052PNQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28052PNQ?
TMS320F28052PNQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28052PNQ 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 TMS320F28052PNQ?
For technical support, including TMS320F28052PNQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28052PNQ requirements.
6.How does Aetrix verify that TMS320F28052PNQ is sourced from the original manufacturer or authorized distributors?
All TMS320F28052PNQ 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 TMS320F28052PNQ meets industry standards.
7.What is the process for return or replacement of TMS320F28052PNQ?
All TMS320F28052PNQ units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28052PNQ, 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 TMS320F28052PNQ part is unused and in its original packaging.
Return procedure for TMS320F28052PNQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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