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Texas Instruments TMS320F28050PNQ
- Part No.:
- TMS320F28050PNQ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28050PNQ.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,445
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Product details
Overview
TMS320F28050PNQ from Texas Instruments is a C2000™ real-time control microcontroller featuring a 60-MHz TMS320C28x CPU, integrated 12-bit ADC (2 MSPS, 16 channels), six analog comparators with two internal reference DACs, three PGA stages, and 14 ePWM channels - deployed in automotive-grade motor control systems requiring AEC-Q100 qualification and deterministic closed-loop response.
For engineers reviewing the TMS320F28050PNQ datasheet, TMS320F28050PNQ pinout, TMS320F28050PNQ application, or TMS320F28050PNQ equivalent, key selection criteria include its Q-temperature grade (–40°C to 125°C), 80-pin LQFP package, dual-zone security module, 16K-word on-chip flash, and integrated analog front-end for sensorless BLDC commutation in safety-conscious power electronics designs.
Technical Context
The TMS320F28050PNQ implements a Harvard-architecture 32-bit C28x CPU with atomic operations and fast interrupt handling, paired with dedicated analog peripherals including dual-sample-and-hold ADC, programmable gain amplifiers (gain ≈ 3, 6, or 11), and comparator-to-PWM routing for hardware-accelerated protection logic.
Its clock system integrates two zero-pin oscillators, crystal oscillator support, and missing-clock detection; power management includes an internal 1.8-V regulator enabled via VREGENZ, single 3.3-V supply operation, and no power sequencing requirement - enabling simplified board-level design for space-constrained automotive and industrial inverters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TMS320C28x at 60 MHz (16.67-ns cycle time), little-endian, unified memory model |
| Flash Memory | 16K × 16-bit words - sufficient for compact motor control firmware with bootloader and calibration data |
| ADC Performance | 12-bit, 2 MSPS conversion rate, 500-ns conversion time, 16-channel input multiplexing |
| Analog Front End | 6 comparators, 2 internal 6-bit reference DACs, 3 PGAs (gain ≈ 3/6/11), 1 buffered VREFOUT DAC |
| ePWM Channels | 14 independent channels with dead-band, trip-zone, and synchronization support for 3-phase inverter control |
| Package & Temp | 80-pin LQFP (12 mm × 12 mm), AEC-Q100 qualified for –40°C to 125°C operation |
| Security | Dual-zone security module with 128-bit key lock, protecting flash, SARAM, OTP, and secure ROM |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch, RoHS-compliant, with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power/ground | Isolates noise-sensitive ADC and comparator circuitry from digital switching transients |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog input channels | Two independent 8-channel groups supporting simultaneous sampling and ratio-metric measurement |
| VREFHI / VREFLO | ADC reference inputs | VREFLO tied to ground; VREFHI accepts external reference or uses internal VREFOUT (buffered DAC) |
| GPIO0–GPIO42 | Multiplexed I/O | 42 pins with configurable pullups, input filtering, and peripheral function mapping (ePWM, eCAP, eQEP, SCI, SPI, I²C) |
| VREGENZ | Voltage regulator enable | Active-low signal: tie to VSS to enable internal 1.8-V core supply; tie to VDDIO to disable and use external 1.8-V source |
| XRS | Reset input/output | Open-drain output driven low during POR/BOR/watchdog reset; accepts external open-drain reset assertion |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Analog Front End | Six comparators with two internal 6-bit DAC references and direct PWM trip-zone routing for hardware fault response |
| Deterministic Real-Time Control | C28x CPU + three 32-bit CPU timers + PIE interrupt expansion enabling sub-microsecond loop execution in motor FOC |
| AEC-Q100 Qualified | Automotive-grade reliability with –40°C to 125°C operation, validated for under-hood motor drive applications |
| Single-Rail Power Architecture | Internal 1.8-V regulator powered from 3.3-V supply eliminates need for external core voltage rail and sequencing |
| Secure Firmware Protection | Dual-zone security with 128-bit key lock prevents unauthorized read-out of flash, SARAM, OTP, and secure ROM contents |
Applications
| Air Conditioner Outdoor Unit | Inverter & Motor Control |
|---|---|
Use Scenario: Variable-speed compressor drive in residential and commercial HVAC systems. IC Role / Device Role / Timing Role: Real-time execution of field-oriented control (FOC) algorithm with synchronized ADC sampling and ePWM updates. Use Value: Enables >95% efficiency across load range while meeting IEC 61000-3-2 harmonic limits via precise current regulation. | Use Scenario: Closed-loop speed/torque control of PMSM or BLDC motors in industrial automation. IC Role / Device Role / Timing Role: Central controller managing position feedback (eQEP), current sensing (ADC), and gate drive timing (ePWM with dead-band). Use Value: Reduces BOM count by integrating PGAs, comparators, and trip-zone logic - eliminating discrete protection ICs. |
| AC-input BLDC Motor Drive | DC-input BLDC Motor Drive |
Use Scenario: Fan or pump drive accepting universal AC input (85–265 VAC) with active PFC stage. IC Role / Device Role / Timing Role: Dual-control engine: PFC regulation (via GPIO34/CTRIPPFCOUT) and motor commutation (ePWM/eQEP). Use Value: Hardware-based comparator-to-PWM routing enables <100-ns overcurrent shutdown - critical for IGBT/MOSFET protection. | Use Scenario: Battery-powered tools, e-bikes, or robotics using 24–48 V DC bus. IC Role / Device Role / Timing Role: Sensorless commutation using ADC-based back-EMF detection and comparator-assisted zero-crossing detection. Use Value: On-chip PGAs amplify low-level motor signals; internal DACs provide stable reference for comparator thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28052PNQ | 6K-word SARAM vs. 6K in TMS320F28050PNQ; identical 16K flash, same analog peripheral count (6 comparators, 2 ref DACs) | No functional difference in motor control use cases; both support same ePWM/eQEP/SCI/I²C peripheral set | Select TMS320F28052PNQ if additional RAM is required for larger observer algorithms or multi-axis coordination |
| TMS320F28051PNQ | Same 16K flash and 6K SARAM; differs only in temperature option availability (T/S only, not Q-grade) | Lacks AEC-Q100 qualification - unsuitable for automotive or under-hood industrial environments | Choose TMS320F28051PNQ only for cost-sensitive non-automotive applications where extended temperature range is not required |
Compared with TMS320F28052PNQ and TMS320F28051PNQ, the TMS320F28050PNQ provides identical analog integration and motor control peripherals but is uniquely qualified for automotive-grade thermal and reliability requirements - making it the sole choice when AEC-Q100 compliance is mandatory.
Availability
TMS320F28050PNQ is available at Aetrix Electronics and suitable for automotive motor drives, HVAC inverter modules, and industrial BLDC controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TMS320F28050PNQ 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 TMS320F28050PNQ belongs to TI's C2000™ real-time control MCU product line, engineered specifically for high-precision, low-latency closed-loop control in power electronics - emphasizing integrated analog sensing, deterministic PWM timing, and functional safety readiness.
FAQ
What is the operating temperature range for the TMS320F28050PNQ?
The TMS320F28050PNQ is qualified for operation from –40°C to +125°C and carries AEC-Q100 Grade 1 certification, making it suitable for under-hood automotive applications and high-ambient industrial environments where thermal stability is critical for reliable motor control execution.
Does the TMS320F28050PNQ include an internal voltage regulator?
Yes, the TMS320F28050PNQ integrates an internal 1.8-V voltage regulator enabled via the VREGENZ pin. When VREGENZ is tied low, the device operates from a single 3.3-V supply with no external core rail required - simplifying power design and reducing BOM cost compared to dual-supply MCUs.
How many PWM channels does the TMS320F28050PNQ support?
The TMS320F28050PNQ supports 14 enhanced PWM (ePWM) channels, each with independent dead-band generation, trip-zone inputs, phase-shift capability, and synchronization features - sufficient for full-bridge, three-phase inverter, and multi-motor control topologies without external PWM expanders.
What analog peripherals are integrated into the TMS320F28050PNQ?
The TMS320F28050PNQ integrates a 12-bit, 2-MSPS ADC with 16 inputs; six analog comparators with two internal 6-bit reference DACs; three programmable gain amplifiers (gain ≈ 3/6/11); one buffered VREFOUT DAC; and four digital filters - forming a complete analog front end for sensorless motor control and protection.
Is the TMS320F28050PNQ pin-compatible with other F2805x devices?
Yes, all TMS320F2805x devices in the PN (80-pin LQFP) package share identical pinouts, including TMS320F28050PNQ, TMS320F28051PNQ, TMS320F28052PNQ, and TMS320F28055PNQ - enabling hardware reuse across performance tiers while maintaining layout compatibility and minimizing redesign effort.
TMS320F28050PNQ 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:
- 60MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 42
- 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28050PNQ FAQ
1.How can I place an order for TMS320F28050PNQ through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28050PNQ 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 TMS320F28050PNQ reliable?
The price and inventory of TMS320F28050PNQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28050PNQ is usually 5 days.
3.What payment methods are accepted for TMS320F28050PNQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28050PNQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28050PNQ?
TMS320F28050PNQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28050PNQ 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 TMS320F28050PNQ?
For technical support, including TMS320F28050PNQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28050PNQ requirements.
6.How does Aetrix verify that TMS320F28050PNQ is sourced from the original manufacturer or authorized distributors?
All TMS320F28050PNQ 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 TMS320F28050PNQ meets industry standards.
7.What is the process for return or replacement of TMS320F28050PNQ?
All TMS320F28050PNQ units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28050PNQ, 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 TMS320F28050PNQ part is unused and in its original packaging.
Return procedure for TMS320F28050PNQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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