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Texas Instruments TMS320F28033PNS
- Part No.:
- TMS320F28033PNS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28033PNS.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,784
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Product details
Overview
TMS320F28033PNS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32 KB flash, 10 KB SARAM, 14-channel 12-bit ADC (4.6 MSPS), 14 ePWM channels, and 32-bit CPU timers - deployed in EV charging station power modules, solar string inverters, and industrial AC-DC converters.
For engineers reviewing the TMS320F28033PNS datasheet, TMS320F28033PNS pinout, TMS320F28033PNS application, or TMS320F28033PNS equivalent, key selection criteria include CLA availability, HRPWM channel count (7), eCAN/I2C/SPI/SCI peripheral integration, LQFP-80 package thermal performance, and automotive-grade temperature range (–40°C to 125°C).
Technical Context
The TMS320F28033PNS implements a Harvard-architecture C28x CPU with atomic instruction execution and zero-wait-state memory access. Its CLA operates independently of the main CPU, accelerating control-loop math using 32-bit floating-point arithmetic.
Peripheral integration includes dual-sample-and-hold ADC with 216.67 ns conversion time, three comparators with integrated DACs, and enhanced PWM modules supporting dual-edge high-resolution modulation. Clocking uses internal oscillators or external crystal input with missing-clock detection and watchdog timer support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TMS320C28x 32-bit fixed-point core at 60 MHz (16.67 ns cycle time) |
| Control Law Accelerator | Dedicated 32-bit floating-point CLA executing code independently of CPU |
| Flash Memory | 32 KB on-chip flash with code-security module and 128-bit lock key |
| ADC Performance | 12-bit, 4.6 MSPS sampling rate, 216.67 ns conversion time, 14 input channels |
| ePWM Channels | 14 total ePWM outputs, including 7 high-resolution (HRPWM) channels |
| Package & Temp | LQFP-80 (12 mm × 12 mm), rated for –40°C to 125°C operation |
| Communication Peripherals | 1 eCAN, 1 I2C, 2 SPI, 1 SCI (UART), 1 LIN module |
Pinout & Package
Package: Low-Profile Quad Flatpack (LQFP), 80-pin, body size 12.0 mm × 12.0 mm, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | Separate 3.3 V domains for core (VDD), analog (VDDA), and I/O (VDDIO); no power sequencing required |
| VSS, VSSA, VREFLO | GND and reference return | Analog ground (VSSA) and reference low (VREFLO) isolated from digital ground for ADC accuracy |
| X1, X2 | Clock oscillator terminals | Support external crystal (4–20 MHz) or ceramic resonator; internal oscillators eliminate need for external components |
| GPIO0–GPIO44 | Configurable I/O | 45 total GPIO pins with input filtering, multiplexed with peripherals (ePWM, eCAP, eQEP, ADC, etc.) |
| EPWM1A/1B–EPWM7A/7B | PWM output terminals | 14 ePWM outputs across 7 modules; 7 support high-resolution dual-edge modulation for precise timing control |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16-channel ADC input mapping (14 used on TMS320F28033PNS), with AIO pins supporting comparator routing |
| CANTXA/CANRXA | eCAN transceiver interface | Dedicated CAN bus transmit/receive pins compliant with ISO 11898-1, supporting up to 1 Mbps |
| SCITXDA/SCIRXDA | SCI UART interface | Asynchronous serial communication with 4-level FIFO, supporting standard UART protocols |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3 V supply operation | Eliminates multi-rail power design complexity and reduces BOM cost in motor drive and power conversion systems |
| Integrated VREG and POR/BOR | On-chip voltage regulator enables single-rail 3.3 V operation; power-on and brown-out reset ensure reliable boot under varying line conditions |
| CLA-accelerated control loops | Offloads time-critical PID, FOC, or SVM calculations from main CPU, enabling deterministic sub-microsecond loop execution |
| HRPWM with dual-edge control | Enables frequency-modulated switching in resonant converters and fine-grained dead-time adjustment in half/full-bridge topologies |
| Analog comparator + DAC integration | Three comparators with internal 10-bit references route directly to PWM trip zones, enabling fast overcurrent protection without CPU intervention |
Applications
| EV Charging Station Power Module | Solar String Inverter |
|---|---|
Use Scenario: High-efficiency DC-DC conversion and grid-synchronization control in 3–22 kW AC/DC and DC/DC stages of EV charging stations. IC Role / Device Role / Timing Role: Real-time controller managing interleaved LLC/PFC stages, HRPWM-driven SiC MOSFET gates, and eCAN-based communication with BMS. Use Value: CLA accelerates current-loop control at 20+ kHz while CPU handles communication and safety monitoring - meeting IEC 61851-1 timing requirements. | Use Scenario: MPPT tracking and transformerless inverter control in residential/commercial solar string inverters with anti-islanding protection. IC Role / Device Role / Timing Role: Primary MCU executing dual-loop (voltage/current) control, ADC-sampled grid synchronization, and HRCAP-based zero-crossing detection. Use Value: 4.6 MSPS ADC with dual sample-and-hold captures simultaneous voltage/current waveforms for accurate reactive power calculation and harmonic analysis. |
| Industrial AC-DC Power Supply | AC Drive Control Module |
Use Scenario: Digital control of telecom rectifiers and merchant server PSUs requiring high efficiency (>96%), tight regulation, and dynamic load response. IC Role / Device Role / Timing Role: Closed-loop controller for active clamp forward or LLC resonant converter, coordinating gate drivers via ePWM and sensing primary-side current/voltage. Use Value: On-chip temperature sensor and comparator outputs enable real-time thermal derating and overtemperature shutdown without external components. | Use Scenario: Sensorless field-oriented control (FOC) of 3-phase induction or PMSM motors in HVAC blowers, compressors, and pumps. IC Role / Device Role / Timing Role: Real-time executor of Clarke/Park transforms, space-vector modulation, and encoder-based position feedback via eQEP and HRCAP modules. Use Value: 7 HRPWM channels support independent phase-leg control with <100 ps resolution, enabling precise dead-time compensation and reduced torque ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28035PN | 64 KB flash, 10 KB SARAM, same CLA, identical peripherals and pinout | Higher firmware storage capacity for complex control + communication stacks | Select when >32 KB flash is required for dual-bank OTA updates or extended diagnostics |
| TMS320F28033-Q1PNS | Identical electrical specs; AEC Q100 Grade 1 qualification (–40°C to 125°C), automotive-specific test flow | Required for automotive on-board chargers (OBC) and traction inverter auxiliary control | Select for automotive programs requiring PPAP documentation and AEC Q100 compliance |
Compared with TMS320F28035PN and TMS320F28033-Q1PNS, the TMS320F28033PNS provides optimal balance of CLA-enabled real-time performance, 32 KB flash for certified control algorithms, and industrial-grade thermal rating - making it ideal for cost-sensitive, high-volume energy infrastructure designs where automotive qualification is unnecessary.
Availability
TMS320F28033PNS is available at Aetrix Electronics and suitable for EV charging station power modules, solar string inverters, and industrial AC-DC power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TMS320F28033PNS 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 for industrial, automotive, and personal electronics markets.
The TMS320F2803x product line delivers entry-performance real-time control MCUs optimized for cost-sensitive motor drives, digital power, and energy conversion - combining C28x CPU performance with analog integration and CLA acceleration in compact packages.
FAQ
What is the maximum operating frequency and instruction cycle time of the TMS320F28033PNS?
The TMS320F28033PNS operates at a maximum CPU frequency of 60 MHz, delivering a 16.67 ns instruction cycle time. This timing is guaranteed across its full industrial temperature range (–40°C to 125°C) and supports deterministic real-time control loop execution in power electronics applications.
Does the TMS320F28033PNS include a Control Law Accelerator (CLA), and what functions does it support?
Yes, the TMS320F28033PNS includes a dedicated 32-bit floating-point Control Law Accelerator (CLA) that executes control-law code independently of the main C28x CPU. It supports real-time acceleration of PID, FOC, SVM, and other math-intensive control algorithms without CPU intervention.
How many high-resolution PWM (HRPWM) channels does the TMS320F28033PNS support, and what is their resolution?
The TMS320F28033PNS supports 7 high-resolution PWM (HRPWM) channels, each capable of 150-ps time resolution for fine-grained edge placement. This enables precise dead-time control, frequency modulation in resonant topologies, and improved EMI performance in SiC/GaN-based power stages.
What ADC specifications apply to the TMS320F28033PNS, and how many input channels are accessible?
The TMS320F28033PNS integrates a 12-bit ADC with 4.6 MSPS sampling rate and 216.67 ns conversion time. It supports 14 analog input channels (from a total of 16) mapped across two sample-and-hold groups, enabling simultaneous sampling for vector control applications.
Is the TMS320F28033PNS pin-compatible with other devices in the F2803x family, and which packages are supported?
Yes, the TMS320F28033PNS in LQFP-80 (PN) package shares identical pinout with TMS320F28030PN, TMS320F28031PN, TMS320F28032PN, TMS320F28034PN, and TMS320F28035PN. All support drop-in replacement within the same package footprint, though peripheral availability (e.g., CLA, flash size) differs per variant.
TMS320F28033PNS 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:
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28033PNS FAQ
1.How can I place an order for TMS320F28033PNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28033PNS 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 TMS320F28033PNS reliable?
The price and inventory of TMS320F28033PNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28033PNS is usually 5 days.
3.What payment methods are accepted for TMS320F28033PNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28033PNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28033PNS?
TMS320F28033PNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28033PNS 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 TMS320F28033PNS?
For technical support, including TMS320F28033PNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28033PNS requirements.
6.How does Aetrix verify that TMS320F28033PNS is sourced from the original manufacturer or authorized distributors?
All TMS320F28033PNS 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 TMS320F28033PNS meets industry standards.
7.What is the process for return or replacement of TMS320F28033PNS?
All TMS320F28033PNS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28033PNS, 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 TMS320F28033PNS part is unused and in its original packaging.
Return procedure for TMS320F28033PNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMS320F28033PNS Tags
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