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Texas Instruments TMS320F28055PNS
- Part No.:
- TMS320F28055PNS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28055PNS.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,032
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Product details
Overview
TMS320F28055PNS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 14-channel ePWM, 12-bit 3.75-MSPS ADC, 7 analog comparators with 3 internal DACs, and dual-zone security-designed for closed-loop motor control in air conditioner outdoor units and BLDC drives.
For engineers reviewing the TMS320F28055PNS datasheet, TMS320F28055PNS pinout, TMS320F28055PNS application, or TMS320F28055PNS equivalent, key selection criteria include CPU+CLA parallel execution, on-chip PGA/ADC/comp integration, LQFP-80 package compatibility, and -40°C to 125°C extended temperature operation.
Technical Context
The TMS320F28055PNS implements a Harvard-architecture 32-bit C28x CPU running at 60 MHz (16.67-ns cycle time) with atomic operations and unified memory mapping. Its independent 32-bit floating-point CLA executes control law code concurrently with the main CPU, reducing latency for high-frequency PWM updates.
It integrates an Analog Front End with four programmable gain amplifiers (gain ≈ 3, 6, or 11), seven comparators, three internal reference DACs, one buffered VREFOUT DAC, and dual-sample-and-hold ADC supporting 16 channels at 3.75 MSPS with 267-ns conversion time-optimized for real-time current/voltage sensing in motor phase legs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point core with 60-MHz operation (16.67-ns cycle time) |
| CLA | Independent 32-bit floating-point control law accelerator executing parallel to CPU |
| ADC | 12-bit, 3.75-MSPS, 16-channel with dual sample-and-hold and 267-ns conversion time |
| ePWM Channels | 14 independent channels with high-resolution dead-time and trip-zone support |
| Analog Peripherals | 7 comparators, 4 PGAs (gain ≈ 3/6/11), 3 internal DACs, 1 buffered VREFOUT DAC |
| Security | Dual-zone security module with 128-bit key, protecting flash/SARAM/OTP/Secure ROM |
| Package | 80-pin LQFP (12.0 mm × 12.0 mm), rated for –40°C to +125°C (S-grade) |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power/ground | Isolated analog supply domain requiring local 2.2-μF decoupling; separates noise-sensitive ADC/PGA paths from digital switching |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog input channels | 16 total ADC inputs grouped into A/B banks; supports simultaneous sampling of up to two channels per group |
| VREFHI / VREFLO | ADC reference inputs | VREFHI accepts external reference or connects to internal VREFOUT; VREFLO tied to analog ground for ratiometric measurement |
| GPIO0–GPIO42 | Multiplexed I/O | 42 pins configurable as GPIO or peripheral functions (ePWM, eCAP, eQEP, SCI, SPI, I²C, eCAN); default GPIO at reset |
| X1 / X2 | Crytal oscillator interface | Supports external quartz crystal/resonator (1–20 MHz); internal oscillators available if unused |
| TRST / TCK / TMS / TDI / TDO | JTAG boundary scan | IEEE 1149.1-compliant debug interface; TRST requires external pulldown resistor (2.2 kΩ typical) |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Amplifiers (PGAs) | Four PGAs with discrete gain settings (≈3×, 6×, 11×) enable direct amplification of low-level current-sense signals before ADC digitization |
| Comparator-to-PWM Routing | Seven comparators can directly trigger ePWM trip-zones without CPU intervention-critical for fast overcurrent protection in motor phases |
| Single 3.3-V Supply Operation | Integrated 1.8-V regulator eliminates need for external DC/DC; VREGENZ pin controls internal/external VREG selection |
| Enhanced Control Peripherals | 14 ePWM channels with high-resolution dead-time, 1 eQEP, 1 eCAP, and 3 32-bit CPU timers support complex multi-axis motion profiles |
| Secure Boot & Code Protection | Dual-zone security with 128-bit key prevents firmware extraction and unauthorized flash writes-required for industrial safety certification |
Applications
| Air Conditioner Outdoor Unit | Inverter & Motor Control |
|---|---|
Use Scenario: High-efficiency variable-speed compressor drive with PFC and inverter stages. IC Role / Device Role / Timing Role: Real-time controller managing interleaved PFC gate timing, 3-phase inverter PWM, and sensor fusion from current/voltage/temperature feedback. Use Value: Integrated PGAs and comparators reduce external signal-conditioning components; CLA offloads field-oriented control (FOC) math from main CPU. | Use Scenario: Closed-loop torque/speed regulation of permanent magnet synchronous motors (PMSM) in HVAC blowers. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithm, generating synchronized 14-channel ePWM outputs, and processing dual-shunt current feedback via 12-bit ADC. Use Value: 3.75-MSPS ADC with dual sample-and-hold enables precise current reconstruction at 20-kHz PWM carrier frequency. |
| AC-input BLDC Motor Drive | DC-input BLDC Motor Drive |
Use Scenario: Fan or pump drive accepting universal AC input (90–264 VAC) with active PFC and 3-phase BLDC commutation. IC Role / Device Role / Timing Role: Dual-control engine: CLA handles PFC voltage loop and current shaping; C28x core manages BLDC six-step or FOC commutation logic and fault monitoring. Use Value: On-chip comparators route overvoltage/overcurrent events directly to ePWM trip zones-achieving <100-ns response for hardware-level shutdown. | Use Scenario: Battery-powered BLDC drive for cordless tools or e-bike controllers operating from 24–48 VDC. IC Role / Device Role / Timing Role: System-on-chip controller performing battery voltage monitoring, thermal management, hall/sensorless commutation, and regenerative braking control. Use Value: Single 3.3-V supply simplifies power architecture; integrated VREFOUT DAC provides stable reference for battery ADC measurements. |
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 |
|---|---|---|---|
| TMS320F28054PNS | No CLA accelerator; 64K flash, same 14-ePWM/7-comparator/4-PGA analog front end | Lacks hardware-accelerated control law execution-requires CPU-only FOC implementation | Select when CLA is unnecessary and cost reduction is prioritized over computational headroom |
| TMS320F28052PNS | Reduced analog resources: 3 PGAs, 6 comparators, 2 internal DACs, 2-MSPS ADC (500-ns conversion) | Suitable for lower-bandwidth motor control where full 3.75-MSPS sampling is not required | Select for cost-sensitive applications with relaxed ADC speed and analog channel count requirements |
Compared with TMS320F28054PNS and TMS320F28052PNS, the TMS320F28055PNS delivers higher deterministic performance via CLA offload, faster ADC throughput, and expanded analog signal conditioning-making it optimal for demanding multi-loop control systems where jitter and latency must be minimized.
Availability
TMS320F28055PNS is available at Aetrix Electronics and suitable for air conditioner outdoor units, inverter & motor control systems, and AC/DC-input BLDC motor drives requiring stable component supply across industrial temperature ranges.
Supply support for TMS320F28055PNS 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 connectivity technologies for industrial, automotive, and consumer markets.
The TMS320F28055PNS belongs to TI's C2000™ real-time control MCU product line-engineered specifically for high-precision, low-latency closed-loop control in motor drives, digital power, and renewable energy systems.
FAQ
What is the maximum operating temperature rating for the TMS320F28055PNS?
The TMS320F28055PNS is rated for operation from –40°C to +125°C (S-grade), validated per JEDEC JESD22-A108 and qualified for extended industrial environments. This rating applies to the full functional specification including CPU, CLA, ADC, and analog peripherals-no derating required within this range.
Does the TMS320F28055PNS include an integrated voltage regulator?
Yes, the TMS320F28055PNS includes an internal 1.8-V voltage regulator (VREG) that enables single 3.3-V supply operation. The VREGENZ pin (Pin 71) controls activation: tie to VSS to enable internal VREG, or tie to VDDIO to disable it and use an external 1.8-V source.
How many enhanced PWM (ePWM) modules does the TMS320F28055PNS support?
The TMS320F28055PNS supports 14 independent enhanced PWM (ePWM) modules, each with dedicated time-base, compare, action-qualifier, dead-band, and trip-zone subsystems-enabling full-bridge, three-phase, and multi-phase inverter topologies with hardware-based fault response.
What analog peripherals are integrated into the TMS320F28055PNS?
The TMS320F28055PNS integrates a comprehensive analog front end: a 12-bit 3.75-MSPS ADC with 16 channels and dual sample-and-hold; seven comparators with up to three internal 6-bit DACs; one buffered reference DAC (VREFOUT); and four programmable gain amplifiers with discrete gain modes (≈3×, 6×, 11×).
Is the TMS320F28055PNS pin-compatible with other F2805x family members?
Yes, the TMS320F28055PNS shares identical 80-pin LQFP (PN) packaging and pinout with all F2805x variants-including TMS320F28054PNS and TMS320F28052PNS-enabling drop-in replacement within the same package footprint and PCB layout.
TMS320F28055PNS 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, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 42
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28055PNS FAQ
1.How can I place an order for TMS320F28055PNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28055PNS 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 TMS320F28055PNS reliable?
The price and inventory of TMS320F28055PNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28055PNS is usually 5 days.
3.What payment methods are accepted for TMS320F28055PNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28055PNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28055PNS?
TMS320F28055PNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28055PNS 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 TMS320F28055PNS?
For technical support, including TMS320F28055PNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28055PNS requirements.
6.How does Aetrix verify that TMS320F28055PNS is sourced from the original manufacturer or authorized distributors?
All TMS320F28055PNS 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 TMS320F28055PNS meets industry standards.
7.What is the process for return or replacement of TMS320F28055PNS?
All TMS320F28055PNS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28055PNS, 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 TMS320F28055PNS part is unused and in its original packaging.
Return procedure for TMS320F28055PNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMS320F28055PNS Tags
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