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Texas Instruments TMS320F28032PNS
- Part No.:
- TMS320F28032PNS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
TMS320F28032PNS.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,496
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Product details
Overview
TMS320F28032PNS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated control peripherals, designed for digital power and motor control systems. It delivers 16.67-ns instruction cycle time, 32-bit floating-point CLA acceleration (not enabled in this variant), 32KB on-chip Flash, 10KB SARAM, and supports ePWM, eCAP, eQEP, 12-bit ADC (4.6 MSPS), and dual-sample-and-hold for closed-loop precision in EV charging power modules.
For engineers reviewing the TMS320F28032PNS datasheet, TMS320F28032PNS pinout, TMS320F28032PNS application, or TMS320F28032PNS equivalent, key selection considerations include its 80-pin LQFP package, –40°C to 125°C extended temperature rating, 3.3-V single-supply operation, and compatibility with TI's C2000™ real-time control ecosystem for high-efficiency power conversion firmware deployment.
Technical Context
The TMS320F28032PNS implements a Harvard-architecture C28x CPU with atomic operations and fast interrupt response, paired with a peripheral interrupt expansion (PIE) block that routes all peripheral interrupts to the CPU. Its memory subsystem includes 32KB of secure Flash, 10KB of zero-wait-state SARAM accessible by both CPU and CLA (though CLA is disabled in this part), and boot ROM with configurable security keys.
Control peripherals are tightly synchronized: ePWM modules support high-resolution edge modulation (HRPWM), eCAP and HRCAP enable precise timing capture, and the 12-bit ADC achieves 4.6 MSPS with 16 input channels, dual sample-and-hold, and ratio-metric reference support via VREFHI/VREFLO - all optimized for real-time current/voltage sensing in switching power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point, 60 MHz (16.67 ns cycle time), Harvard architecture with unified memory model |
| Flash Memory | 32KB × 16-bit, secured with 128-bit key and lock; supports in-field firmware updates without external programming hardware |
| RAM | 10KB × 16-bit SARAM (zero-wait-state), accessible by CPU only - CLA is disabled in TMS320F28032PNS |
| ADC | 12-bit, 4.6 MSPS sampling rate, 16-channel input mux, dual sample-and-hold, VREFHI/VREFLO ratio-metric reference support |
| ePWM Channels | 14 independent channels with dead-band generation, trip-zone protection, and HRPWM capability for sub-nanosecond resolution |
| Package & Temp | 80-pin PN LQFP (12.0 mm × 12.0 mm), rated for –40°C to +125°C industrial/automotive extended temperature operation |
| Supply | Single 3.3-V nominal supply; integrated voltage regulator eliminates need for external sequencing or auxiliary rails |
Pinout & Package
Package: 80-pin Low-Profile Quad Flatpack (PN/LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply inputs | Separate analog (VDDA), I/O (VDDIO), and core (VDD) rails - decoupling required per TI layout guidelines to maintain ADC accuracy and PWM timing integrity |
| VSS, VSSA, VREFLO | Ground and reference returns | Dedicated analog ground (VSSA) and reference low (VREFLO) pins minimize noise coupling into 12-bit ADC measurements |
| GPIO0–GPIO44 | Configurable digital I/O | Up to 45 multiplexed GPIOs with input filtering; default reset state is GPIO function - peripheral alternate functions require explicit mux configuration |
| EPWM1A/1B–EPWM7A/7B | PWM output terminals | 14 total ePWM outputs supporting complementary pairs, dead-band insertion, and TZ fault inputs for safe gate-driver interfacing |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog input channels | 16-channel 12-bit ADC input bank with dedicated A/B groups - supports simultaneous sampling across two groups using dual sample-and-hold |
| X1, X2, XCLKIN | System clock sources | Crystal oscillator inputs (X1/X2) or external clock (XCLKIN); internal PLL generates 60-MHz SYSCLK from 1–20 MHz source |
| TCK, TMS, TDI, TDO, TRST | JTAG debug interface | IEEE 1149.1-compliant boundary-scan test access port - TRST requires external 2.2-kΩ pulldown for reliable debug initialization |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3-V supply operation | Eliminates multi-rail power design complexity and reduces BOM cost in space-constrained power modules |
| Integrated power-on and brown-out reset | Ensures deterministic startup and fault recovery without external supervisor ICs in DC/DC and inverter applications |
| Code-security module with 128-bit key | Prevents unauthorized firmware extraction or reverse engineering of proprietary control algorithms in commercial EV charging systems |
| Enhanced quadrature encoder interface (eQEP) | Direct position/speed feedback acquisition from rotary encoders in servo drive power stages without external logic |
| Local Interconnect Network (LIN) module | Enables cost-effective communication with automotive cabin sensors or auxiliary controllers in on-board charger (OBC) designs |
| Three independent 32-bit CPU timers | Provides dedicated timing resources for background tasks, communication timeouts, and system watchdog supervision |
Applications
| EV Charging Power Module | Solar String Inverter |
|---|---|
Use Scenario: High-efficiency AC/DC and DC/DC conversion in 3.3–22 kW on-board chargers and DC fast-charging stations. IC Role / Device Role / Timing Role: Real-time controller executing PFC and isolated DC/DC control loops at >20 kHz switching frequency with sub-microsecond PWM resolution. Use Value: 14-channel ePWM with HRPWM and 4.6 MSPS ADC enables precise current-mode control and fast transient response under dynamic load conditions. | Use Scenario: MPPT tracking and grid-synchronized inversion in residential/commercial solar string inverters up to 10 kW. IC Role / Device Role / Timing Role: Dual-loop controller managing DC-side MPPT and AC-side grid synchronization with harmonic compensation. Use Value: 16-channel 12-bit ADC with dual sample-and-hold captures simultaneous voltage/current waveforms for accurate RMS calculation and THD reduction. |
| Industrial AC Drive Control | Energy Storage PCS |
Use Scenario: Sensorless field-oriented control (FOC) of induction and permanent magnet motors in HVAC compressors and conveyor drives. IC Role / Device Role / Timing Role: Execution of FOC math (Clarke/Park transforms, PI regulators) and generation of space-vector PWM patterns with <1-μs latency. Use Value: C28x CPU's 16×16/32×32 MAC operations and fast interrupt handling ensure deterministic execution of 10–20 kHz motor control loops. | Use Scenario: Bi-directional power conversion between battery stacks and grid/utility in commercial energy storage systems (ESS). IC Role / Device Role / Timing Role: Coordinating charge/discharge profiles, thermal management, and grid compliance (IEEE 1547) via real-time state machine and protection logic. Use Value: eCAN and SPI interfaces enable seamless integration with battery management systems (BMS) and SCADA gateways while maintaining functional safety boundaries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28034PN | Same 80-pin LQFP package and 60-MHz C28x core, but includes CLA accelerator and 64KB Flash | Preferred where CLA offloads CPU for complex observer-based FOC or predictive current control in high-bandwidth drives | Select TMS320F28034PN when CLA-enabled algorithm partitioning is required and additional Flash is needed for dual-bank firmware updates |
| TMS320F28032PAG | Identical core, memory, and peripheral configuration, but in 64-pin TQFP (10 mm × 10 mm) package | Better suited for compact DC/DC converter designs where PCB area is constrained but full 14-channel ePWM count is retained | Choose TMS320F28032PAG for space-optimized layouts requiring same functionality in smaller footprint - verify pin mapping for GPIO/peripheral routing |
Compared with TMS320F28032PNS, the TMS320F28034PN adds CLA and Flash for advanced control algorithms, while the TMS320F28032PAG retains identical functionality in a smaller 64-pin TQFP - both require validation of thermal performance and signal integrity in high-noise power environments.
Availability
TMS320F28032PNS is available at Aetrix Electronics and suitable for EV charging power modules, solar string inverters, and industrial AC drive control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TMS320F28032PNS 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and power electronics markets.
The TMS320F2803x family targets real-time control applications including digital power, motor drives, and renewable energy systems - emphasizing high-precision PWM, fast ADC, and robust code security in low-pin-count packages.
FAQ
What is the maximum operating temperature range for the TMS320F28032PNS?
The TMS320F28032PNS is rated for operation from –40°C to +125°C, meeting extended industrial and automotive under-hood requirements. This rating is confirmed in the device comparison table and applies specifically to the 'S' temperature grade denoted in the suffix 'PNS'. Thermal derating curves and junction-to-case resistance values are provided in Section 6.7 of the SPRS584Q datasheet.
Does the TMS320F28032PNS include a programmable control law accelerator (CLA)?
No, the TMS320F28032PNS does not include the CLA accelerator. According to Table 4-1 in the SPRS584Q datasheet, CLA is present only in TMS320F28033 and TMS320F28035 variants. The TMS320F28032PNS relies solely on the C28x CPU for control law execution, with full support for 16×16 and 32×32 MAC operations at 60 MHz.
How many ePWM channels does the TMS320F28032PNS support, and what resolution is achievable?
The TMS320F28032PNS supports 14 ePWM channels, with 7 of those capable of high-resolution PWM (HRPWM) mode. HRPWM extends resolution beyond standard 150-ps step size to sub-nanosecond edge placement - critical for ZVS/ZCS soft-switching topologies in high-frequency DC/DC converters and resonant inverters.
What ADC performance specifications apply to the TMS320F28032PNS?
The TMS320F28032PNS features a 12-bit ADC with 4.6 MSPS maximum sampling rate, 16 input channels, dual sample-and-hold capability, and ratio-metric reference support via VREFHI/VREFLO. Conversion time is 216.67 ns, and it supports simultaneous sampling across two groups - enabling accurate current/voltage vector measurement in three-phase motor and inverter applications.
Is the TMS320F28032PNS pin-compatible with other devices in the F2803x family?
Yes, the TMS320F28032PNS shares identical pinout and electrical characteristics with other 80-pin LQFP variants in the F2803x family (e.g., TMS320F28030PN, TMS320F28031PN, TMS320F28033PN, TMS320F28034PN, TMS320F28035PN), as confirmed in the mechanical packaging table and pin diagrams. Peripheral availability varies by device, but physical layout and power/ground assignments remain consistent.
TMS320F28032PNS 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, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 45
- 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:
TMS320F28032PNS FAQ
1.How can I place an order for TMS320F28032PNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28032PNS 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 TMS320F28032PNS reliable?
The price and inventory of TMS320F28032PNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28032PNS is usually 5 days.
3.What payment methods are accepted for TMS320F28032PNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28032PNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28032PNS?
TMS320F28032PNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28032PNS 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 TMS320F28032PNS?
For technical support, including TMS320F28032PNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28032PNS requirements.
6.How does Aetrix verify that TMS320F28032PNS is sourced from the original manufacturer or authorized distributors?
All TMS320F28032PNS 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 TMS320F28032PNS meets industry standards.
7.What is the process for return or replacement of TMS320F28032PNS?
All TMS320F28032PNS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28032PNS, 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 TMS320F28032PNS part is unused and in its original packaging.
Return procedure for TMS320F28032PNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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