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Texas Instruments TMS320F28031PNS
- Part No.:
- TMS320F28031PNS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28031PNS.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,104
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Product details
Overview
TMS320F28031PNS from Texas Instruments is a 32-bit C28x real-time microcontroller with 60MHz CPU, 32KB on-chip flash, 10KB SARAM, and integrated control peripherals including 12 ePWM channels, 12-bit ADC (4.6 MSPS), eCAN, LIN, SPI, I²C, and SCI. It operates from a single 3.3V supply and targets motor control and digital power applications requiring deterministic timing and analog integration.
For engineers reviewing the TMS320F28031PNS datasheet, TMS320F28031PNS pinout, TMS320F28031PNS application, or TMS320F28031PNS equivalent, key selection criteria include ePWM channel count, ADC resolution and sampling rate, CLA availability, package footprint (80-pin LQFP), and automotive qualification status (non-Q1 variant).
Technical Context
The TMS320F28031PNS implements a Harvard-architecture C28x CPU with atomic operations and fast interrupt response, paired with a peripheral interrupt expansion (PIE) block supporting all on-chip peripherals. Its memory subsystem includes 32KB flash (secure), 10KB SARAM, 8KB boot ROM, and 1KB OTP, all accessible via unified programming model.
Control-specific hardware includes 12 ePWM modules (7 with high-resolution capability), 12-bit ADC with 16 input channels and dual sample-and-hold, three comparators with integrated DACs, and eCAP/eQEP for position/speed sensing - all synchronized to the same clock domain for precise closed-loop execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TMS320C28x 32-bit DSP core, 60MHz (16.67ns cycle time), little-endian |
| Flash Memory | 32KB × 16-bit, secure, with code-security module and 128-bit lock key |
| RAM | 10KB × 16-bit SARAM (0-wait state), plus 8KB boot ROM |
| ADC | 12-bit, 4.6 MSPS conversion rate, 16-channel input, dual sample-and-hold |
| ePWM Channels | 12 independent channels; 7 support high-resolution mode (dual-edge control) |
| Communication | 1× eCAN, 1× LIN, 2× SPI, 1× I²C, 1× SCI (UART), JTAG boundary scan |
| Package | 80-pin PN LQFP (12.0mm × 12.0mm), industrial temperature range (–40°C to 105°C) |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP), body size 12.0mm × 12.0mm, lead pitch 0.5mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | VDD = 3.3V core/digital; VDDA = 3.3V analog; VDDIO = 3.3V I/O; internal regulator enables single-rail operation |
| VSS, VSSA, VREFLO | Ground and reference return | VSS = digital ground; VSSA = analog ground; VREFLO = ADC low reference (tied to VSSA) |
| X1, X2 | Clock oscillator terminals | Support external crystal/resonator (4–20MHz) or external clock source |
| GPIO0–GPIO44 | Programmable I/O | Up to 45 GPIO pins with input filtering, multiplexed with peripherals (ePWMx, eCAP, eQEP, ADC, etc.) |
| EPWM1A/1B–EPWM12A/12B | PWM output terminals | Dedicated high/low-side outputs per channel; 7 channels support HRPWM for sub-nanosecond timing resolution |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16 total ADC inputs (A/B banks); A0–A7 and B0–B7 mapped to physical pins with shared functions |
| CANTXA/CANRXA | eCAN transceiver interface | Direct connection to external CAN transceiver; supports ISO 11898-1 compliant communication |
| SCITXDA/SCIRXDA | SCI UART interface | Asynchronous serial communication (TX/RX), compatible with standard UART protocols |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3V supply operation | Eliminates power sequencing requirements and reduces system BOM cost versus multi-rail MCUs |
| Integrated analog comparators | Three comparators with internal 10-bit references, directly routable to PWM trip zones for hardware fault protection |
| High-resolution PWM (HRPWM) | 7 channels support 150ps resolution via dual-edge modulation, enabling precise dead-time control in inverters |
| On-chip temperature sensor | Monitors die temperature for thermal derating or overtemperature shutdown without external components |
| Code security module | 128-bit encryption key and lock mechanism prevents firmware reverse engineering and unauthorized flash access |
Applications
| Motor Drive Control | Solar Inverter Power Stage |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with <150ps HRPWM resolution, and ADC sampling synchronized to switching cycles. Use Value: Enables >98% inverter efficiency and <1% torque ripple through deterministic 60MHz C28x + HRPWM timing. | Use Scenario: MPPT and DC-link voltage regulation in string-level solar inverters with galvanic isolation. IC Role / Device Role / Timing Role: Dual-loop control (inner current loop at 20kHz, outer voltage loop at 1kHz) with simultaneous ADC sampling and ePWM update. Use Value: 4.6 MSPS ADC and 12 ePWM channels allow full-bridge gate drive with adaptive dead-time compensation. |
| EV On-Board Charger (OBC) | Industrial AC-DC Power Supply |
Use Scenario: Bidirectional AC/DC conversion in 3.3–6.6kW OBC modules for light-duty electric vehicles. IC Role / Device Role / Timing Role: Coordinated control of PFC and LLC resonant stages using eCAN for vehicle bus communication and LIN for auxiliary monitoring. Use Value: Integrated eCAN/LIN eliminates external protocol ICs; 32KB flash accommodates dual-mode (AC/DC) firmware. | Use Scenario: High-efficiency telecom rectifiers and server PSUs requiring tight voltage regulation and fan-speed control. IC Role / Device Role / Timing Role: Digital control of interleaved boost PFC and phase-shifted full-bridge DC/DC, with thermal management via on-die sensor. Use Value: Single-chip solution replaces discrete analog controllers and reduces component count by 30% vs. legacy designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28032PNS | Same package and pinout; 32KB flash, 10KB SARAM, but only 8 ePWM channels and no HRPWM | Limited to simpler motor drives or lower-switching-frequency power supplies | Select when HRPWM and >8 ePWM channels are not required to reduce cost |
| TMS320F28034PNS | Same package and pinout; 32KB flash, 10KB SARAM, adds CLA (Control Law Accelerator) for parallel floating-point math | Suitable for complex algorithms (e.g., predictive current control) offloaded from main CPU | Select when computational load exceeds C28x capacity and CLA acceleration is needed |
Compared with TMS320F28032PNS, the TMS320F28031PNS provides higher PWM channel count and HRPWM capability for advanced inverter topologies; compared with TMS320F28034PNS, it lacks CLA but offers identical analog/peripheral integration at lower cost for CPU-bound applications.
Availability
TMS320F28031PNS is available at Aetrix Electronics and suitable for motor drive control, solar inverter power stage, and EV on-board charger applications requiring stable component supply and long-term industrial lifecycle support.
Supply support for TMS320F28031PNS 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and communications markets.
The TMS320F2803x family belongs to TI's C2000™ real-time control MCU portfolio, designed specifically for closed-loop control in power electronics, motor drives, and renewable energy systems where deterministic timing and analog integration are critical.
FAQ
What is the maximum ADC sampling rate supported by the TMS320F28031PNS?
The TMS320F28031PNS supports a maximum ADC conversion rate of 4.6 million samples per second (MSPS), with 12-bit resolution and dual sample-and-hold capability. This allows full 16-channel conversion in under 3.5μs, enabling tight current-loop control in high-frequency inverters. The ADC interface is optimized for low latency and minimal CPU overhead during real-time execution of the TMS320F28031PNS.
Does the TMS320F28031PNS include a Control Law Accelerator (CLA)?
No, the TMS320F28031PNS does not include a Control Law Accelerator (CLA). The CLA is present only in the TMS320F28033PNS and TMS320F28035PNS variants. The TMS320F28031PNS relies solely on its 60MHz C28x CPU for control law execution, which remains sufficient for standard FOC, PFC, and digital power applications without computationally intensive predictive algorithms.
What package and temperature grade does the TMS320F28031PNS use?
The TMS320F28031PNS uses an 80-pin PN Low-Profile Quad Flatpack (LQFP) package measuring 12.0mm × 12.0mm, rated for industrial temperature operation from –40°C to 105°C. The 'PNS' suffix explicitly denotes the LQFP package and standard industrial grade - distinct from 'PAG' (TQFP) or 'RSH' (VQFN) variants and non-automotive qualification (Q1 variants are AEC-Q100 qualified).
How many ePWM channels does the TMS320F28031PNS support, and how many offer high-resolution capability?
The TMS320F28031PNS supports 12 ePWM channels, with 7 of them featuring high-resolution PWM (HRPWM) capability for sub-nanosecond timing control. This enables precise dual-edge modulation essential for zero-voltage switching (ZVS) and adaptive dead-time compensation in resonant converters and advanced motor drives implemented on the TMS320F28031PNS.
Is the TMS320F28031PNS pin-compatible with other devices in the F2803x family?
Yes, the TMS320F28031PNS is pin-compatible with other 80-pin LQFP variants in the F2803x family (e.g., TMS320F28030PNS, TMS320F28032PNS, TMS320F28033PNS, TMS320F28034PNS, TMS320F28035PNS) within the same package type. Pin assignments, power domains, and peripheral mappings are consistent across these PN-package devices, allowing hardware reuse when migrating between variants based on flash size, RAM, or CLA requirements.
TMS320F28031PNS 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, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 64KB (32K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28031PNS FAQ
1.How can I place an order for TMS320F28031PNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28031PNS 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 TMS320F28031PNS reliable?
The price and inventory of TMS320F28031PNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28031PNS is usually 5 days.
3.What payment methods are accepted for TMS320F28031PNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28031PNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28031PNS?
TMS320F28031PNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28031PNS 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 TMS320F28031PNS?
For technical support, including TMS320F28031PNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28031PNS requirements.
6.How does Aetrix verify that TMS320F28031PNS is sourced from the original manufacturer or authorized distributors?
All TMS320F28031PNS 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 TMS320F28031PNS meets industry standards.
7.What is the process for return or replacement of TMS320F28031PNS?
All TMS320F28031PNS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28031PNS, 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 TMS320F28031PNS part is unused and in its original packaging.
Return procedure for TMS320F28031PNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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