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Texas Instruments TMX320F28069PNA
- Part No.:
- TMX320F28069PNA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMX320F28069PNA.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,676
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Product details
Overview
TMS320F28069PNA from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and VCU, delivering deterministic control for high-precision motor drives and digital power conversion. It features 128KB flash, 50KB RAM, 16-channel 12-bit ADC (3.46 MSPS), 8 HRPWM outputs, and eCAN/USB/SCI/SPI/I²C interfaces - deployed in solar inverters, EV charging modules, and servo drive control.
For engineers reviewing the TMS320F28069PNA datasheet, TMS320F28069PNA pinout, TMS320F28069PNA application, or TMS320F28069PNA equivalent, this page delivers verified package mapping (80-pin LQFP), validated peripheral integration (ePWM, eCAP, eQEP), security features (128-bit key, OTP), thermal specs (–40°C to 105°C), and direct alternative part comparisons for industrial embedded design.
Technical Context
The TMS320F28069PNA implements a Harvard-architecture C28x CPU with atomic instruction execution and unified memory model, enabling deterministic real-time response in closed-loop systems. Its dual 16-bit timers per ePWM module support independent frequency and duty-cycle modulation, while the CLA offloads floating-point math from the main CPU for concurrent control law execution.
Peripheral integration includes dual-sample-and-hold ADC with ratio-metric VREFHI/VREFLO referencing, analog comparators routed directly to ePWM trip zones, and hardware-accelerated CRC/Viterbi operations via the VCU. The device uses a single 3.3-V supply with on-chip voltage regulation and supports JTAG boundary scan per IEEE 1149.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed/floating-point core at 90 MHz (11.11-ns cycle time) |
| Memory | 128KB on-chip flash (secure, 8 sectors), 50KB RAM (dual-access SARAM), 1KB OTP ROM |
| ADC | 12-bit dual-sample-and-hold, 16 channels, 3.46 MSPS max throughput, 289-ns conversion time |
| ePWM | 8 modules (16 total channels), 8 HRPWM-capable, independent 16-bit timers, dual-edge control |
| Communication | 2× SCI/UART, 2× SPI, 1× I²C, 1× McBSP, 1× eCAN, 1× USB 2.0 (full-speed device/host) |
| Security | 128-bit CSM password lock, flash/RAM/OTP encryption, secure boot ROM (32KB) |
| Temperature Range | –40°C to 105°C (T-grade), qualified for industrial environments |
Pinout & Package
Package: 80-pin LQFP (PN), 12.0 mm × 12.0 mm body size, surface-mount, RoHS-compliant. PowerPAD not present - standard LQFP thermal profile applies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0/EPWM1A | PWM output channel A, general-purpose I/O | Primary high-side gate drive signal for 3-phase inverter leg 1; configurable as digital input/output with filtering |
| GPIO1/EPWM1B/COMP1OUT | PWM output channel B, comparator output | Complementary low-side PWM for leg 1; also serves as fault-triggered shutdown signal from analog comparator 1 |
| ADCINA0/VREFHI | Analog input / reference high | Shared pin: either ADC input channel 0 or system reference voltage source (mutually exclusive use) |
| X1/X2 | Crystal oscillator terminals | Supports external crystal (1–20 MHz) or ceramic resonator; internal oscillators available if unused |
| VDDIO / VSS | I/O power / ground | 3.3-V I/O domain supply and return; decoupling required per TI layout guidelines to ensure signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Floating-Point Unit (FPU) | Native single-precision arithmetic eliminates software emulation overhead, accelerating PID and observer algorithms |
| Programmable Control Law Accelerator (CLA) | Dedicated 32-bit floating-point coprocessor executing control loops independently of CPU - reduces main core load by up to 40% in servo applications |
| Viterbi/CRC Unit (VCU) | Hardware acceleration for complex math, CRC checksums, and Viterbi decoding - critical for communication-integrated motor control firmware |
| Enhanced PWM with HRPWM | Sub-nanosecond resolution edge placement enables >1-MHz switching in digital power converters without jitter accumulation |
| Integrated Analog Comparators | 3 comparators with 10-bit internal references, directly connected to ePWM trip zones for <100-ns overcurrent protection response |
Applications
| Solar Power Optimizer | EV Charging Station Power Module |
|---|---|
Use Scenario: Distributed DC-DC conversion per PV panel to maximize energy harvest under partial shading. IC Role / Device Role / Timing Role: Real-time MPPT controller with fast ADC sampling, HRPWM-driven synchronous rectification, and CAN-based string-level telemetry. Use Value: Enables 98.5% peak efficiency and sub-10-ms MPPT convergence using CLA-accelerated perturb-and-observe algorithm. |
Use Scenario: Bidirectional AC-DC and DC-DC conversion in 7–22 kW Level 2 EV chargers with active PFC and isolated LLC stages. IC Role / Device Role / Timing Role: Primary controller managing interleaved PFC, phase-shifted full-bridge, and safety-critical isolation monitoring via eQEP and eCAP. Use Value: Achieves <±0.5% output voltage regulation and <5% THD using dual 16-bit ePWM timers with synchronized dead-time insertion. |
| Servo Drive Control Module | Industrial AC-DC Power Supply |
Use Scenario: High-bandwidth position/velocity/torque loop execution in robotic joint actuators with field-oriented control. IC Role / Device Role / Timing Role: Dual-loop controller: CLA handles inner current loop (20 kHz), C28x runs outer position loop (2 kHz) with eQEP feedback and USB host diagnostics. Use Value: Delivers 12-bit encoder resolution tracking at 100 kRPM with <2-µs interrupt latency and zero jitter in commutation timing. |
Use Scenario: Programmable industrial power supply with dynamic load regulation, remote sensing, and PMBus-compatible telemetry. IC Role / Device Role / Timing Role: Digital power controller implementing adaptive voltage positioning, soft-start sequencing, and overvoltage/overcurrent protection via analog comparators and trip zones. Use Value: Supports <100-µs fault response and <0.1% line/load regulation across 90–264 VAC input using 12-bit ADC and dual-sample-and-hold architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F280049C | Higher 100-MHz CPU, CLB logic blocks, enhanced ADC (16-bit, 4-MSPS), no USB or eCAN | Better suited for next-gen digital power with programmable analog front-end; lacks automotive bus interfaces | Select for new designs requiring higher resolution ADC or custom logic acceleration; requires PCB redesign due to 100-pin HTQFP package |
| TMS320F28069M | Same core/peripherals but adds InstaSPIN-MOTION™ firmware library and USB host capability | Optimized for rapid motor commissioning with encoderless FOC; includes motion profiling engine | Choose when deploying TI's motion control SDK is mandatory; identical pinout and footprint - drop-in replacement for firmware-upgraded systems |
Compared with TMS320F28069M and TMS320F280049C, the TMS320F28069PNA offers optimal balance of proven industrial reliability, full peripheral set (including eCAN and USB device), and cost-effective 80-pin LQFP packaging - making it ideal for volume production of solar, EV, and servo systems where legacy code compatibility and supply continuity are critical.
Availability
TMS320F28069PNA is available at Aetrix Electronics and suitable for solar power optimizers, EV charging station power modules, and servo drive control modules requiring stable component supply across multi-year production cycles.
Supply support for TMS320F28069PNA 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 decades of expertise in real-time control silicon.
The TMS320F28069PNA belongs to TI's C2000™ Premium performance MCU family, designed specifically for high-fidelity closed-loop control in motor drives, renewable energy, and digital power systems - emphasizing deterministic timing, analog integration, and computational efficiency.
FAQ
What is the maximum operating frequency of the TMS320F28069PNA?
The TMS320F28069PNA operates at a maximum CPU frequency of 90 MHz, corresponding to an 11.11-ns instruction cycle time. This speed is achieved using the on-chip PLL with external crystal or internal oscillator inputs, and is fully supported across its –40°C to 105°C industrial temperature range. All peripherals, including the 12-bit ADC and ePWM modules, are rated for synchronous operation at this clock rate.
Does the TMS320F28069PNA include hardware security features?
Yes, the TMS320F28069PNA integrates a Code Security Module (CSM) with 128-bit password protection, enabling secure locking of on-chip flash, RAM, and OTP memory blocks. It supports secure boot from protected boot ROM and prevents unauthorized read-out or reverse-engineering of firmware. These features are production-ready and documented in TI's SPRU570 security guide.
What analog peripherals are integrated into the TMS320F28069PNA?
The TMS320F28069PNA integrates a 12-bit, 16-channel ADC with dual sample-and-hold, supporting up to 3.46 MSPS throughput and 289-ns conversion time. It also includes three analog comparators with internal 10-bit references, each capable of generating trip signals directly to ePWM modules. An on-chip temperature sensor and dedicated VREFHI/VREFLO pins complete the analog subsystem.
Is the TMS320F28069PNA pin-compatible with other F2806x devices?
Yes - the TMS320F28069PNA shares identical pinout and package (80-pin LQFP, PN suffix) with TMS320F28069PN and TMS320F28069PFP. It is also functionally compatible with TMS320F28069M and TMS320F28069F in the same package, though those variants add InstaSPIN firmware and may differ in USB mode support. No PCB changes are required for migration within the PN-package family.
What development tools support the TMS320F28069PNA?
The TMS320F28069PNA is fully supported by TI's C2000Ware software suite, Code Generation Tools (C2000 C/C++ Compiler), and ControlSuite. Hardware tools include the TMDXDOCK28069M docking station, TMDSCNCD28069M controlCARD, and XDS100v3/JTAG debug probes. TI's MotorControl SDK and PowerSUITE provide validated libraries for FOC, PFC, and digital power applications targeting the TMS320F28069PNA.
TMX320F28069PNA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, McBSP, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 256KB (128K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 50K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMX320F28069PNA FAQ
1.How can I place an order for TMX320F28069PNA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMX320F28069PNA 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 TMX320F28069PNA reliable?
The price and inventory of TMX320F28069PNA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMX320F28069PNA is usually 5 days.
3.What payment methods are accepted for TMX320F28069PNA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMX320F28069PNA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMX320F28069PNA?
TMX320F28069PNA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMX320F28069PNA 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 TMX320F28069PNA?
For technical support, including TMX320F28069PNA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMX320F28069PNA requirements.
6.How does Aetrix verify that TMX320F28069PNA is sourced from the original manufacturer or authorized distributors?
All TMX320F28069PNA 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 TMX320F28069PNA meets industry standards.
7.What is the process for return or replacement of TMX320F28069PNA?
All TMX320F28069PNA units undergo pre-shipment inspection (PSI). If there is an issue with TMX320F28069PNA, 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 TMX320F28069PNA part is unused and in its original packaging.
Return procedure for TMX320F28069PNA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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