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Texas Instruments TMS320F28035PNQR
- Part No.:
- TMS320F28035PNQR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28035PNQR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,524
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Product details
Overview
TMS320F28035PNQR from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 64KB flash, 10KB SARAM, and dual 12-bit ADCs (4.6 MSPS, 16-channel) for closed-loop motor and power control. It delivers deterministic real-time response in EV charging stations, solar inverters, and industrial AC-DC converters.
For engineers reviewing the TMS320F28035PNQR datasheet, TMS320F28035PNQR pinout, TMS320F28035PNQR application, or TMS320F28035PNQR equivalent, key selection criteria include CLA offload capability, HRPWM dual-edge modulation, eCAN/LIN interface support, and AEC-Q100 qualified Q-temp grade operation up to 125°C.
Technical Context
The TMS320F28035PNQR implements a Harvard-architecture C28x CPU with atomic instructions and zero-wait-state memory access, enabling sub-microsecond interrupt latency. Its CLA executes floating-point control loops independently of the main CPU, reducing jitter in time-critical PWM timing.
On-chip analog integration includes three comparators with DAC references, HRCAP modules for nanosecond-resolution edge capture, and ADCs with dual sample-and-hold supporting synchronized multi-channel sampling. The device supports single 3.3V supply with internal VREG and no power sequencing requirement.
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 coprocessor executing independent control code |
| Flash Memory | 64KB on-chip flash (16-bit word) with code-security module and 128-bit lock key |
| ADC Performance | 12-bit, 4.6 MSPS conversion rate; 16 input channels; dual sample-and-hold |
| ePWM Channels | 14 enhanced PWM channels with high-resolution (HRPWM) capability on 7 channels |
| Package & Temp Range | 80-pin LQFP (PN), 12.0 mm × 12.0 mm; automotive-grade Q-temp: –40°C to +125°C |
| Communication Peripherals | 1 eCAN, 1 LIN, 2 SPI, 1 I2C, 1 SCI (UART), all with FIFO buffers |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP, PN package), 12.0 mm × 12.0 mm body size, exposed thermal pad, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | VDD (core): 1.8 V; VDDA (analog): 3.3 V; VDDIO (I/O): 3.3 V - internally regulated, no external sequencing required |
| X1, X2 | Clock oscillator terminals | Supports crystal (4–20 MHz) or external clock input; enables PLL-based system clock generation |
| GPIO0–GPIO44 | Configurable I/O pins | 45 total GPIOs (multiplexed); 6 analog-capable (AIO); internal pullups enabled at reset on non-PWM pins |
| EPWM1A/1B–EPWM7A/7B | PWM output terminals | 14 ePWM outputs with dead-band, trip-zone, and HRPWM dual-edge modulation for precise gate drive timing |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16-channel 12-bit ADC with two independent sample-and-hold circuits for simultaneous sampling |
| CANTXA/CANRXA | eCAN transceiver interface | High-speed Controller Area Network compliant with ISO 11898-1; 32-message mailbox buffer |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Control Law Accelerator (CLA) | Offloads floating-point PID and observer calculations from CPU, enabling deterministic sub-1µs loop execution |
| High-Resolution PWM (HRPWM) | 7 channels support 150-ps resolution fine adjustment for frequency-modulated ZVS/ZCS soft-switching control |
| Integrated Analog Comparators | 3 fast comparators with programmable 10-bit DAC references; outputs directly route to PWM trip zones for hardware fault protection |
| Secure Boot & Code Protection | 128-bit security key, OTP memory, and flash/SARAM encryption prevent firmware reverse engineering and unauthorized reprogramming |
| Automotive Qualification | AEC-Q100 Grade 1 qualification (TMS320F28035-Q1 variant); TMS320F28035PNQR meets same Q-temp range (–40°C to +125°C) |
Applications
| EV Charging Station Power Module | Solar String Inverter |
|---|---|
|
Use Scenario: Controls bidirectional AC/DC and DC/DC stages in 11–22 kW EV charging units with active cooling and grid synchronization. IC Role / Device Role / Timing Role: Real-time master controller managing PFC, isolation, and LLC resonant converter timing via HRPWM and CLA-accelerated current/voltage loops. Use Value: Enables 98%+ efficiency through adaptive dead-time compensation and sub-200 ns PWM resolution, meeting IEC 61851-1 requirements. |
Use Scenario: Manages MPPT, DC-link regulation, and grid-synchronized 3-phase inverter switching in residential/commercial string inverters. IC Role / Device Role / Timing Role: Primary control MCU executing dual-loop current/voltage control with synchronized 16-channel ADC sampling and ePWM dead-time management. Use Value: Achieves <100 µs current-loop update time using CLA offload, enabling >99% MPPT tracking accuracy under partial shading. |
| Industrial AC-DC Power Supply | Welding Machine Power Stage |
|
Use Scenario: Regulates high-efficiency 3 kW telecom rectifiers and server PSUs with active PFC and LLC resonant topology. IC Role / Device Role / Timing Role: Dual-core timing controller: C28x handles communication and supervision; CLA runs inner-loop voltage/current regulation. Use Value: Reduces thermal stress via adaptive frequency modulation (HRPWM) and eliminates software jitter in critical zero-voltage switching transitions. |
Use Scenario: Delivers precise arc initiation, droop control, and short-circuit recovery in inverter-based GMAW/MIG welders. IC Role / Device Role / Timing Role: High-speed actuator controller interfacing with isolated gate drivers, current sensors, and thermistors via eCAP/HRCAP and ADC. Use Value: Supports 10 kHz switching with 150-ps HRPWM tuning, enabling stable arc length control and <50 µs overcurrent shutdown response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28034PNQR | Same 80-pin LQFP package and Q-temp rating; 32KB flash, 10KB SARAM, no CLA | Lacks CLA acceleration; suitable for simpler single-loop control without floating-point math load | Select when cost sensitivity outweighs need for hardware-accelerated control law execution |
| TMS320F28035PAGT | 64-pin TQFP (10 mm × 10 mm); identical 64KB flash, CLA, and peripherals; same Q-temp range | Smaller footprint and lower I/O count (33 GPIO vs. 45); retains full HRPWM/eCAN/ADC functionality | Choose for space-constrained designs where 14 ePWM channels and 16 ADC inputs remain sufficient |
Compared with TMS320F28034PNQR and TMS320F28035PAGT, the TMS320F28035PNQR uniquely combines maximum I/O (45 GPIO), full CLA capability, and AEC-Q100-aligned temperature range in the largest LQFP package-enabling complex multi-axis motor drives and high-channel-count power converters without layout compromise.
Availability
TMS320F28035PNQR 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 across extended temperature ranges and long production lifecycles.
Supply support for TMS320F28035PNQR 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 specializing in analog, embedded processing, and digital signal processing technologies for industrial, automotive, and power electronics markets.
The TMS320F2803x family targets cost-sensitive real-time control applications-delivering C28x performance with CLA acceleration, high-resolution analog peripherals, and automotive-grade reliability in compact packages.
FAQ
What is the operating temperature range for the TMS320F28035PNQR?
The TMS320F28035PNQR is rated for –40°C to +125°C operation, matching the AEC-Q100 Grade 1 qualification of the TMS320F28035-Q1 variant. This extended range supports deployment in under-hood automotive power modules and outdoor-rated EV charging infrastructure without derating.
Does the TMS320F28035PNQR include a hardware accelerator for control algorithms?
Yes, the TMS320F28035PNQR integrates a dedicated Control Law Accelerator (CLA) - a 32-bit floating-point coprocessor that executes control code independently of the main C28x CPU. This enables deterministic, jitter-free execution of PID, observers, and field-oriented control loops in parallel with system supervision tasks.
How many PWM channels does the TMS320F28035PNQR support, and what resolution is available?
The TMS320F28035PNQR provides 14 enhanced PWM (ePWM) channels, with 7 supporting High-Resolution PWM (HRPWM) mode offering 150-ps fine adjustment resolution. This enables precise timing control for soft-switching topologies like LLC resonant converters and advanced motor commutation schemes.
What analog-to-digital conversion capability does the TMS320F28035PNQR offer?
The TMS320F28035PNQR features dual 12-bit ADCs with 4.6 MSPS aggregate throughput, 16 input channels, and dual sample-and-hold circuitry. It supports synchronized sampling across multiple channels - critical for vector-controlled motor drives and multi-phase power converter feedback.
Is the TMS320F28035PNQR pin-compatible with other devices in the F2803x family?
Yes, the TMS320F28035PNQR shares identical pinout and electrical characteristics with other 80-pin LQFP variants in the F2803x family (e.g., TMS320F28034PNQR, TMS320F28033PNQR). Firmware and PCB layouts are interchangeable across these parts, differing only in flash size, CLA presence, and peripheral enablement.
TMS320F28035PNQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Tape & Reel (TR)
- 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:
- 128KB (64K 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:
TMS320F28035PNQR FAQ
1.How can I place an order for TMS320F28035PNQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28035PNQR 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 TMS320F28035PNQR reliable?
The price and inventory of TMS320F28035PNQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28035PNQR is usually 5 days.
3.What payment methods are accepted for TMS320F28035PNQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28035PNQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28035PNQR?
TMS320F28035PNQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28035PNQR 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 TMS320F28035PNQR?
For technical support, including TMS320F28035PNQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28035PNQR requirements.
6.How does Aetrix verify that TMS320F28035PNQR is sourced from the original manufacturer or authorized distributors?
All TMS320F28035PNQR 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 TMS320F28035PNQR meets industry standards.
7.What is the process for return or replacement of TMS320F28035PNQR?
All TMS320F28035PNQR units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28035PNQR, 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 TMS320F28035PNQR part is unused and in its original packaging.
Return procedure for TMS320F28035PNQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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