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Texas Instruments TMS320F28026PTT
- Part No.:
- TMS320F28026PTT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
TMS320F28026PTT.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,104
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Product details
Overview
TMS320F28026PTT from Texas Instruments is a 32-bit C28x-core microcontroller optimized for real-time motor and power control, operating at 60 MHz (16.67-ns cycle time), featuring 16 KB on-chip Flash, 6 KB SARAM, 8-channel ePWM with 4 high-resolution outputs, 12-bit ADC (3 MSPS, 7 channels), and integrated comparators with DACs. It targets inverter gate drive and digital power stage control.
For engineers reviewing the TMS320F28026PTT datasheet, TMS320F28026PTT pinout, TMS320F28026PTT application, or TMS320F28026PTT equivalent, key selection criteria include its 48-pin LQFP package, single 3.3-V supply operation, HRPWM dual-edge modulation capability, analog integration (ADC + comparators), and code compatibility within the F2802x family.
Technical Context
The TMS320F28026PTT implements the fixed-point TMS320C28x CPU core with Harvard architecture, atomic instructions, and unified memory model-enabling deterministic real-time execution. Its peripheral set centers on closed-loop control: ePWM modules support dead-time insertion and trip-zone protection, while the ADC features dual sample-and-hold and ratio-metric reference support (VREFHI/VREFLO).
Control logic is enhanced by two analog comparators with internal 10-bit references, directly routable to PWM outputs for hardware-based protection. Clocking relies on dual zero-pin oscillators or external crystal (X1/X2), with watchdog timer, missing-clock detection, and low-power modes managed via system control registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TMS320C28x 32-bit fixed-point, 60 MHz (16.67 ns cycle time) |
| Flash Memory | 16 KB × 16-bit, secure, with code-security module and 128-bit lock key |
| RAM | 6 KB × 16-bit SARAM (0-wait-state), plus 8 KB Boot ROM and 1 KB OTP |
| ePWM Channels | 8 total (ePWM1–ePWM4), each with independent 16-bit timer and high-resolution extension (HRPWM) on 4 outputs |
| ADC | 12-bit, 3 MSPS, 7 input channels, dual sample-and-hold, VREFHI/VREFLO ratio-metric support |
| Comparators | 2 analog comparators with integrated 10-bit DACs, outputs routable to PWM trip zones |
| Package | 48-pin LQFP (PT), 7.0 mm × 7.0 mm, –40°C to 105°C (T-grade) |
Pinout & Package
48-pin Low-Profile Quad Flatpack (LQFP), PT package, body size 7.0 mm × 7.0 mm, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VDDIO / VDDA | Power supply rails | VDD (core, 1.8 V), VDDIO (I/O, 3.3 V), VDDA (analog, 3.3 V); no power sequencing required |
| X1 / X2 | Clock input/output | Crystal oscillator interface (1.8 V); supports external 3.3-V clock via XCLKIN (GPIO19/GPIO38) |
| GPIO0–GPIO7, GPIO12, GPIO16–GPIO19, GPIO28–GPIO38 | Multiplexed I/O | 22 programmable GPIO pins with input filtering; default reset state is GPIO function |
| EPWM1A/1B–EPWM4A/4B | PWM output terminals | 8 dedicated ePWM outputs; HRPWM enables sub-nanosecond resolution on A-side outputs |
| ADCINA0–ADCINA7, ADCINB2–ADCINB7 | Analog inputs | 13-channel 12-bit ADC input mapping across two groups (A/B); 7 channels available on TMS320F28026PTT |
| COMP1A/1B, COMP2A/2B | Comparator inputs | Two comparators with internal 10-bit DAC references; COMP1 available on all packages, COMP2 only on 48-pin PT |
| XRS / TRST / TCK / TMS / TDI / TDO | Reset & JTAG | Hardware reset (open-drain), IEEE 1149.1 JTAG debug interface with internal pullups (except TRST, requires external pulldown) |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3-V supply operation | Eliminates multi-rail power design; internal 1.8-V regulator powers core, reducing BOM count and layout complexity |
| HRPWM with dual-edge control | Enables frequency-modulated switching in resonant converters and precise dead-time tuning without CPU intervention |
| Comparator-to-PWM routing | Hardware-level fault response (<100 ns latency) for overcurrent/overvoltage protection, bypassing software interrupt latency |
| Code-security module | 128-bit encrypted key locks Flash/SARAM/OTP; prevents firmware extraction and unauthorized reprogramming |
| Peripheral Interrupt Expansion (PIE) | Centralized vectoring of 96 peripheral interrupts to CPU, enabling deterministic ISR entry with minimal jitter |
Applications
| Air Conditioner Outdoor Unit | Inverter & Motor Control |
|---|---|
Use Scenario: Variable-speed compressor drive in residential and commercial HVAC systems requiring precise torque and efficiency control under wide load and temperature ranges. IC Role / Device Role / Timing Role: Real-time execution of field-oriented control (FOC) algorithms, synchronized PWM generation for 3-phase IGBT/SiC gate drivers, and ADC sampling of phase currents and DC-link voltage. Use Value: Enables >95% motor efficiency across 10–100% load range; HRPWM and comparator trip zones reduce thermal stress during transient overloads. | Use Scenario: Closed-loop speed/torque control of BLDC and PMSM motors in industrial automation, robotics, and electric vehicle auxiliary systems. IC Role / Device Role / Timing Role: Execution of sensorless FOC or encoder-based position loops; generation of 6-channel complementary PWM with programmable dead time; real-time current sensing and thermal monitoring. Use Value: Sub-microsecond PWM update and hardware fault response ensure stable operation at 20+ kHz switching frequencies with SiC MOSFETs. |
| Micro Inverter | AC Drive Power Stage Module |
Use Scenario: Single-phase grid-tied solar microinverters with MPPT, isolation-free topology, and anti-islanding protection. IC Role / Device Role / Timing Role: Dual-loop control (inner current, outer voltage) with synchronized ADC sampling, high-frequency PWM for transformerless topologies, and fast analog comparator-based islanding detection. Use Value: Integrated comparators and HRPWM enable <10 ms anti-islanding response per UL 1741 SB, meeting stringent grid-code requirements. | Use Scenario: Modular AC drive power stages used in pump, fan, and conveyor applications with scalable IGBT/SiC gate driver interfaces. IC Role / Device Role / Timing Role: Gate signal generation with adaptive dead-time compensation, analog current/voltage feedback acquisition, and hardware-enforced safety shutdown via trip-zone inputs. Use Value: Reduces need for external protection ICs; comparator outputs directly disable PWM outputs within one CPU cycle, preventing shoot-through. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28027PTT | Same 48-pin LQFP package and 60-MHz C28x core, but includes 32 KB Flash and 13-channel ADC | Supports more complex control algorithms and additional analog sensing (e.g., dual current + DC-link + temperature) | Select when firmware growth headroom or expanded analog acquisition is required; otherwise TMS320F28026PTT offers cost-optimal 16 KB Flash for mature designs |
| TMS320F28026FPTT | Identical Flash/RAM/peripherals, but factory-programmed with InstaSPIN-FOC™ motor control library and calibration data | Reduces development time for BLDC/PMSM FOC implementation; eliminates need for custom observer or tuning | Select when accelerating motor control firmware bring-up is prioritized over full register-level control flexibility |
Compared with TMS320F28027PTT, the TMS320F28026PTT trades Flash capacity and ADC channel count for lower unit cost while retaining identical PWM timing precision and HRPWM capability; versus TMS320F28026FPTT, it provides full register-level access for custom algorithm development without preloaded firmware constraints.
Availability
TMS320F28026PTT is available at Aetrix Electronics and suitable for inverter & motor control, air conditioner outdoor units, micro inverters, and AC drive power stage modules requiring stable component supply across industrial production cycles.
Supply support for TMS320F28026PTT 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The TMS320F28026PTT belongs to TI's C2000™ real-time microcontroller product line, designed specifically for deterministic closed-loop control in power electronics, motor drives, and digital power conversion systems.
FAQ
What is the maximum operating frequency of the TMS320F28026PTT?
The TMS320F28026PTT operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is achieved using the on-chip 1.8-V regulator and internal PLL; external clock sources up to 60 MHz are also supported via XCLKIN. The TMS320F28026PTT maintains full peripheral functionality-including ePWM, ADC, and comparator modules-at this rated frequency under specified temperature and voltage conditions.
Does the TMS320F28026PTT support hardware-based fault protection?
Yes, the TMS320F28026PTT supports hardware-based fault protection through its trip-zone (TZ) inputs and comparator outputs. Pins TZ1–TZ3 accept external fault signals, while COMP1OUT and COMP2OUT can be routed directly to ePWM trip inputs-triggering immediate PWM shutdown within one CPU cycle. This path bypasses software interrupt latency, enabling sub-microsecond response critical for IGBT/SiC short-circuit protection in power stages.
How many analog-to-digital converter (ADC) channels does the TMS320F28026PTT provide?
The TMS320F28026PTT integrates a 12-bit ADC with 7 input channels (ADCINA0–ADCINA6). It supports dual sample-and-hold, ratio-metric reference operation (VREFHI/VREFLO), and conversion rates up to 3 MSPS. Channel mapping follows Group A only; Group B inputs (e.g., ADCINB2–ADCINB7) are not enabled on this variant per device comparison documentation.
Is the TMS320F28026PTT pin-compatible with other F2802x devices in the same package?
Yes, the TMS320F28026PTT is pin-compatible with other 48-pin LQFP (PT) variants in the F2802x family-including TMS320F28027PTT, TMS320F28023PTT, and TMS320F28022PTT. All share identical pin assignments, electrical characteristics, and thermal profiles. Firmware portability is further ensured by C28x core and peripheral register compatibility across the family.
What development tools are recommended for the TMS320F28026PTT?
Texas Instruments recommends the C2000Ware software suite, Code Composer Studio™ IDE, and the LAUNCHXL-F28027 LaunchPad development kit for initial evaluation and firmware development on the TMS320F28026PTT. The LaunchPad provides direct JTAG debugging, onboard emulation, and breakout headers compatible with the 48-pin PT footprint-enabling rapid prototyping of motor control and digital power applications.
TMS320F28026PTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- C2000™ C28x Piccolo™
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 60MHz
- Connectivity:
- I2C, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 32KB (16K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.995V
- Data Converters:
- A/D 13x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28026PTT FAQ
1.How can I place an order for TMS320F28026PTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28026PTT 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 TMS320F28026PTT reliable?
The price and inventory of TMS320F28026PTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28026PTT is usually 5 days.
3.What payment methods are accepted for TMS320F28026PTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28026PTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28026PTT?
TMS320F28026PTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28026PTT 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 TMS320F28026PTT?
For technical support, including TMS320F28026PTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28026PTT requirements.
6.How does Aetrix verify that TMS320F28026PTT is sourced from the original manufacturer or authorized distributors?
All TMS320F28026PTT 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 TMS320F28026PTT meets industry standards.
7.What is the process for return or replacement of TMS320F28026PTT?
All TMS320F28026PTT units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28026PTT, 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 TMS320F28026PTT part is unused and in its original packaging.
Return procedure for TMS320F28026PTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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