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Texas Instruments TMS320F28052PNS
- Part No.:
- TMS320F28052PNS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28052PNS.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,042
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Product details
Overview
TMS320F28052PNS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 12-bit 2-MSPS ADC, seven analog comparators (two with internal DACs), four PGAs, ePWM/eCAP/eQEP peripherals, and dual-zone security-designed for motor control in AC-input BLDC drives, inverter systems, and door operator controllers.
For engineers reviewing the TMS320F28052PNS datasheet, TMS320F28052PNS pinout, TMS320F28052PNS application, or TMS320F28052PNS equivalent, key selection factors include its 80-pin LQFP package, 3.3-V single-supply operation, 42 GPIOs with filtering, on-chip VREG, and AEC-Q100-qualified S-temperature grade (–40°C to 125°C).
Technical Context
The TMS320F28052PNS implements a Harvard-architecture C28x CPU executing at 60 MHz (16.67-ns cycle time) with 16×16/32×32 MAC support and atomic operations, paired with a dedicated 32-bit floating-point CLA that runs control law code independently of the main CPU. Its analog front end integrates six comparators (two with internal 6-bit DACs), one buffered reference DAC, three PGAs (gain ≈ 3/6/11), and four digital filters-optimized for closed-loop PWM modulation.
Clocking relies on dual zero-pin oscillators or external crystal (X1/X2), with watchdog, missing-clock detection, and JTAG boundary scan (IEEE 1149.1). Memory includes 32 KB flash, 8 KB SARAM, Boot ROM, OTP, and secure ROM-all protected by 128-bit key and dual-zone security lock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point core @ 60 MHz; enables deterministic real-time motor control loops with sub-microsecond interrupt latency. |
| CLA | Independent 32-bit floating-point math accelerator; offloads PID, FOC, or observer calculations from CPU without bus contention. |
| ADC | 12-bit, 2-MSPS, 16-channel SAR ADC with dual sample-and-hold; supports ratio-metric VREFHI/VREFLO references for robust current sensing. |
| Analog Peripherals | 6 comparators (2 with internal 6-bit DACs), 1 buffered reference DAC, 3 PGAs (gain 3/6/11), 4 digital filters-enables direct analog feedback to ePWM trip zones. |
| ePWM | 14-channel enhanced PWM with high-resolution dead-time control, TZ inputs, and EPWMSYNCI/O; supports 3-phase inverter gate drive with fault protection. |
| Package & Temp | 80-pin LQFP (12 mm × 12 mm); rated for –40°C to 125°C (S-grade), qualified per AEC-Q100 for automotive motor control applications. |
| Power | Single 3.3-V supply; integrated 1.8-V VREG eliminates external regulator; no power sequencing required. |
Pinout & Package
80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch. Thermal resistance θJA = 42.5°C/W (JEDEC standard board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power/ground | Isolates ADC/comparator noise; requires local 2.2-μF decoupling for stable 12-bit conversion. |
| VDD / VSS | Digital core power/ground | Powers C28x CPU, CLA, and memory; each VDD pin needs ≥1.2-μF capacitor when using internal VREG. |
| VDDIO / VSS | I/O buffer power/ground | Supplies GPIO, ePWM, SCI/SPI/I2C; single 3.3-V rail simplifies PCB design and reduces BOM count. |
| X1 / X2 | Crystal oscillator terminals | Supports 1–20 MHz crystals for precise clock generation; X1 must be tied to GND if unused. |
| GPIO0–GPIO42 | Multiplexed I/O | 42 pins with programmable pullups, input filtering, and peripheral remapping-enables flexible signal routing in space-constrained motor drives. |
| ADCINA0–ADCINB7 | Analog inputs | 16 total ADC channels across two groups; op-amp-labeled pins (e.g., ADCINA1, ADCINB4) accept conditioned sensor signals directly. |
| ePWM1A–ePWM7B | PWM outputs | 14 independent outputs with complementary pairs, dead-time insertion, and TZ fault inputs-supports 3-phase + auxiliary inverter topologies. |
| TRST / TCK / TMS / TDI / TDO | JTAG interface | IEEE 1149.1-compliant debug port; TRST requires external 2.2-kΩ pulldown for reliable boundary-scan operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-zone security module | Enables separate secure (Zone 2) and non-secure memory regions; prevents firmware reverse-engineering via 128-bit encryption key lock. |
| Integrated analog front end | Combines 6 comparators, 2 internal DACs, 3 PGAs, and 4 digital filters-eliminates external signal conditioning ICs in motor current/voltage sensing paths. |
| On-chip VREG | Generates regulated 1.8-V core voltage from 3.3-V supply; removes need for external DC/DC converter and simplifies thermal management. |
| ePWM with TZ inputs | Hardware-based fault response: comparator outputs or external signals trigger immediate PWM shutdown (<100 ns) to protect power stages during overcurrent events. |
| InstaSPIN-FOC support | Firmware-ready for TI's field-oriented control library; leverages CLA and ADC timing to execute torque/flux loops at 20 kHz without CPU overhead. |
Applications
| AC-input BLDC Motor Drive | Inverter & Motor Control |
|---|---|
Use Scenario: High-efficiency variable-speed drive for HVAC compressors using single-phase AC input and 3-phase BLDC motor. IC Role / Device Role / Timing Role: Real-time controller executing FOC algorithm via CLA, sampling current via dual-sample-and-hold ADC, and generating synchronized ePWM gate signals. Use Value: Achieves >95% efficiency at partial load by dynamically adjusting switching frequency and dead time using on-chip PGAs and comparators for fast overcurrent shutdown. | Use Scenario: Industrial servo drive with position/velocity/torque loop closure and safety-rated STO (Safe Torque Off) monitoring. IC Role / Device Role / Timing Role: Primary motion controller managing eQEP feedback, eCAP for encoder index capture, and ePWM for IGBT gate driving with hardware TZ fault response. Use Value: Meets SIL-2 functional safety requirements through dual-zone security, watchdog timer, and hardware-enforced PWM disable on fault detection within 100 ns. |
| Door Operator Drive Control | AC Drive Control Module |
Use Scenario: Smart building automated sliding door with soft-start, obstacle detection, and emergency stop compliance. IC Role / Device Role / Timing Role: Integrated controller handling analog current sensing (via PGA + ADC), Hall-effect position feedback (eQEP), and bidirectional ePWM motor control. Use Value: Reduces bill-of-materials by integrating comparator-based stall detection and buffered DAC reference for consistent torque profiling across temperature. | Use Scenario: Compact HVAC fan control module accepting 3-phase AC input, delivering variable-frequency output to PMSM motor. IC Role / Device Role / Timing Role: System-on-chip controller running sensorless FOC, managing SCI UART for HMI communication, SPI for EEPROM parameter storage, and I2C for ambient temperature monitoring. Use Value: Enables <50-ms startup time and <±0.5% speed regulation via CLA-accelerated observer and 2-MSPS ADC sampling synchronized to PWM carrier. |
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 | 64 KB flash, 10 KB SARAM, full 7-comparator AFE (vs. 6), 3 internal DACs (vs. 2) | Supports more complex control algorithms and additional analog sensor channels | Select when firmware size exceeds 32 KB or extra comparator/DAC resources are needed for multi-axis control |
| TMS320F28052MNS | InstaSPIN-MOTION enabled; Zone 1 and RAML0 secured; only Zone 2 available for user code | Pre-loaded with motion control libraries but reduced user-accessible memory vs. TMS320F28052PNS | Select only for legacy InstaSPIN-MOTION designs; not recommended for new projects per TI documentation |
Compared with TMS320F28054PNS, the TMS320F28052PNS offers lower memory and analog resource count at reduced cost-ideal for cost-sensitive single-axis drives. Versus TMS320F28052MNS, it provides full memory access and flexibility for custom FOC implementation without pre-secured zones.
Availability
TMS320F28052PNS is available at Aetrix Electronics and suitable for AC-input BLDC motor drives, inverter & motor control systems, and door operator drive control requiring stable component supply across automotive and industrial production cycles.
Supply support for TMS320F28052PNS 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 over 90 years of innovation in power management and real-time control.
The TMS320F28052PNS belongs to TI's C2000™ real-time control MCU family-engineered specifically for high-precision, low-latency closed-loop control in motor drives, digital power, and EV subsystems.
FAQ
What is the maximum operating temperature rating for the TMS320F28052PNS?
The TMS320F28052PNS is rated for operation from –40°C to 125°C and carries AEC-Q100 qualification for automotive applications. This S-grade temperature range ensures reliable performance in under-hood motor control modules and industrial inverters exposed to elevated ambient conditions without derating.
Does the TMS320F28052PNS include an integrated voltage regulator?
Yes, the TMS320F28052PNS includes an internal 1.8-V voltage regulator (VREG) controlled by the VREGENZ pin. When VREGENZ is tied low, the device operates from a single 3.3-V supply-eliminating external regulators and reducing system cost and board area while maintaining full CPU, CLA, and analog peripheral functionality.
How many PWM channels does the TMS320F28052PNS support, and what advanced features do they include?
The TMS320F28052PNS supports 14 ePWM channels with complementary outputs, programmable dead-time, high-resolution phase-shift control, and hardware trip-zone (TZ) inputs. These features enable precise gate driving for 3-phase inverters, active rectifiers, and resonant converters with sub-100 ns fault response for IGBT/MOSFET protection.
What analog peripherals are integrated into the TMS320F28052PNS for motor current sensing?
The TMS320F28052PNS integrates a 12-bit 2-MSPS ADC with dual sample-and-hold, six analog comparators (two with internal 6-bit DACs), three programmable gain amplifiers (gain ≈ 3/6/11), and four digital filters. This AFE allows direct shunt-based current measurement with hardware-triggered PWM shutdown-replacing discrete op-amps and comparators in compact motor drives.
Is the TMS320F28052PNS pin-compatible with other devices in the F2805x family?
Yes, all F2805x devices-including TMS320F28052PNS, TMS320F28054PNS, and TMS320F28055PNS-share identical 80-pin LQFP (PN) packaging and pinout. This allows hardware reuse across performance tiers; software portability is ensured by C28x core and peripheral register compatibility, though memory and analog resource counts differ.
TMS320F28052PNS 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:
- 64KB (32K 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:
TMS320F28052PNS FAQ
1.How can I place an order for TMS320F28052PNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28052PNS 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 TMS320F28052PNS reliable?
The price and inventory of TMS320F28052PNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28052PNS is usually 5 days.
3.What payment methods are accepted for TMS320F28052PNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28052PNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28052PNS?
TMS320F28052PNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28052PNS 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 TMS320F28052PNS?
For technical support, including TMS320F28052PNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28052PNS requirements.
6.How does Aetrix verify that TMS320F28052PNS is sourced from the original manufacturer or authorized distributors?
All TMS320F28052PNS 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 TMS320F28052PNS meets industry standards.
7.What is the process for return or replacement of TMS320F28052PNS?
All TMS320F28052PNS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28052PNS, 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 TMS320F28052PNS part is unused and in its original packaging.
Return procedure for TMS320F28052PNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMS320F28052PNS Tags
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