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Texas Instruments TMS320F28033RSHS
- Part No.:
- TMS320F28033RSHS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
TMS320F28033RSHS.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 56VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,709
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Product details
Overview
TMS320F28033RSHS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32 KB flash, 10 KB SARAM, 14-channel 12-bit ADC (4.6 MSPS), 14 ePWM channels (7 with high-resolution capability), and dual comparators with DACs - deployed in EV charging power modules, solar string inverters, and industrial AC-DC converters.
For engineers reviewing the TMS320F28033RSHS datasheet, TMS320F28033RSHS pinout, TMS320F28033RSHS application, or TMS320F28033RSHS equivalent, key selection criteria include CLA offload capability for real-time control loops, HRPWM dual-edge modulation support, on-chip temperature sensor + VREFHI/VREFLO ratio-metric ADC reference, and 56-pin VQFN (7 mm × 7 mm) thermal performance in -40°C to 125°C operation.
Technical Context
The TMS320F28033RSHS implements a Harvard-architecture C28x CPU with atomic instructions and zero-wait-state memory access, paired with a dedicated 32-bit floating-point CLA that executes control algorithms independently of the main CPU. Its peripheral set includes three 32-bit CPU timers, PIE-interrupt management, and dual-sample-and-hold ADC architecture enabling simultaneous sampling across multiple channels.
Control peripherals are tightly coupled: ePWM modules support TZ (trip-zone) fault protection and EPWMSYNCI/SYNCO synchronization; comparators route directly to PWM trip logic; HRCAP modules provide sub-nanosecond edge capture; and eCAN/I2C/SPI/SCI/LIN interfaces enable multi-protocol system communication without external transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point, 60 MHz (16.67 ns cycle time), Harvard bus, unified memory model |
| Control Law Accelerator | Dedicated 32-bit floating-point CLA with independent program execution - enables parallel real-time loop processing |
| Flash Memory | 32 KB (16-bit word), secure with 128-bit key lock - supports field firmware updates with code protection |
| ADC Performance | 12-bit, 4.6 MSPS, 14 input channels, dual sample-and-hold - achieves 216.67 ns conversion time for fast current/voltage loop sampling |
| ePWM Channels | 14 total, 7 with high-resolution (HRPWM) capability - enables <150-ps duty-cycle resolution for precise digital power control |
| Package & Temp | 56-pin VQFN (RSH), 7.0 mm × 7.0 mm, –40°C to +125°C (S-grade) - optimized for thermally constrained industrial power modules |
| I/O Count | 45 GPIO pins (multiplexed), 6 AIO pins - supports flexible signal routing for motor phase sensing, gate drive, and analog feedback |
Pinout & Package
56-pin Very Thin Quad Flatpack No-Lead (VQFN, RSH package), 7.0 mm × 7.0 mm body, 0.4 mm pitch, exposed thermal pad. Designed for high-density PCB layouts and efficient thermal dissipation in enclosed power electronics enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | Separate 3.3 V domains for core (VDD), analog (VDDA), and I/O (VDDIO) - eliminates noise coupling between digital and analog sections |
| VSS, VSSA, VREFLO | GND and reference return | Dedicated analog ground (VSSA) and VREFLO tied internally - ensures stable 0 V reference for ratio-metric ADC operation |
| GPIO0–GPIO44 | Configurable digital I/O | 45 multiplexed pins with per-pin pullup control - default GPIO at reset; supports ePWM, eCAP, eQEP, SPI, SCI, I2C, LIN, CAN functions |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16-channel 12-bit ADC input pairs - supports simultaneous sampling via dual sample-and-hold for vector control current reconstruction |
| X1, X2, XCLKIN, XCLKOUT | Clock interface | On-chip oscillator + external crystal/clock input; XCLKOUT configurable as SYSCLKOUT/2 or /4 - simplifies clock tree design |
| TCK, TMS, TDI, TDO, TRST | JTAG debug interface | IEEE 1149.1-compliant boundary scan - enables real-time emulation, breakpoint debugging, and flash programming without external adapters |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Control Law Accelerator (CLA) | Offloads PID, observer, and FOC algorithms from main CPU - reduces latency and frees C28x core for supervisory tasks |
| High-Resolution PWM (HRPWM) | 7 channels with <150-ps duty-cycle resolution - enables precise dead-time control and soft-switching in SiC/GaN-based converters |
| Integrated Analog Comparators | 3 comparators with internal 10-bit DAC references - provides hardware-based overcurrent/overvoltage trip without CPU intervention |
| Code Security Module | 128-bit encryption key + lock mechanism - prevents unauthorized readout or modification of flash/SARAM/OTP memory blocks |
| Single 3.3 V Supply Operation | No power sequencing required; internal voltage regulator - reduces BOM count and simplifies power design for compact systems |
Applications
| EV Charging Power Module | Solar String Inverter |
|---|---|
Use Scenario: High-efficiency DC-DC conversion stage in 11–22 kW AC/DC EV charging stations with active cooling constraints. IC Role / Device Role / Timing Role: Real-time control MCU managing interleaved LLC resonant converter timing, current sharing, and safety-critical fault response. Use Value: CLA-accelerated current-loop control and HRPWM enable <1% THD output with 98.5% peak efficiency at full load. | Use Scenario: Distributed MPPT and DC-AC inversion in residential solar arrays with partial shading mitigation. IC Role / Device Role / Timing Role: Primary controller executing dual-loop (inner current + outer voltage) control, grid synchronization, and anti-islanding detection. Use Value: 4.6 MSPS ADC + dual sample-and-hold allows simultaneous sampling of 3-phase currents and voltages for accurate vector control. |
| Industrial AC-DC Converter | Welding Machine Power Stage |
Use Scenario: Compact 3 kW telecom rectifier operating in forced-air-cooled rack environments with strict EMI limits. IC Role / Device Role / Timing Role: Digital controller for PFC + isolated DC-DC stages, coordinating ZVS transitions and adaptive frequency modulation. Use Value: On-chip temperature sensor + VREFHI/VREFLO ratio-metric ADC ensures stable regulation across –40°C to 125°C ambient range. | Use Scenario: IGBT-based constant-current arc welding power supply requiring sub-microsecond fault response. IC Role / Device Role / Timing Role: Safety-critical PWM generator with hardware trip-zone (TZ) monitoring of desaturation signals and overtemperature. Use Value: Integrated comparators routed directly to ePWM trip logic achieve <500 ns fault-to-shutdown latency - meets IEC 60974-1 Class A requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28035RSHS | 64 KB flash, 10 KB SARAM, same CLA, 16-channel ADC, 14 ePWM (7 HRPWM) | Supports larger control algorithms and additional safety diagnostics; identical pinout and peripheral set | Select when firmware complexity exceeds 32 KB flash or extended diagnostic logging is required |
| TMS320F28034RSHS | No CLA, 32 KB flash, 10 KB SARAM, 14-channel ADC, 14 ePWM (4 HRPWM) | Lacks hardware-accelerated control law execution; reduced HRPWM count limits SiC/GaN switching fidelity | Select for cost-sensitive designs where CLA offload is unnecessary and HRPWM count ≥4 suffices |
Compared with TMS320F28034RSHS, the TMS320F28033RSHS adds CLA acceleration and 3 extra HRPWM channels - critical for high-bandwidth current loops in wide-bandgap power stages; versus TMS320F28035RSHS, it trades 32 KB flash capacity for identical real-time control capability in space-constrained modules.
Availability
TMS320F28033RSHS is available at Aetrix Electronics and suitable for EV charging power modules, solar string inverters, and industrial AC-DC converters requiring stable component supply across extended product lifecycles.
Supply support for TMS320F28033RSHS 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 communications markets.
The TMS320F2803x family delivers entry-performance real-time control MCUs with C28x+CLA architecture, targeting cost-sensitive digital power, motor control, and energy conversion systems requiring deterministic low-latency response.
FAQ
What is the maximum operating temperature rating for the TMS320F28033RSHS?
The TMS320F28033RSHS is rated for operation from –40°C to +125°C (S-grade). This extended temperature range is validated per TI's characterization data and supports deployment in sealed, convection-cooled power modules where ambient temperatures exceed 105°C. The on-chip temperature sensor provides real-time die temperature feedback usable for thermal derating algorithms within the TMS320F28033RSHS firmware.
Does the TMS320F28033RSHS include a hardware accelerator for control algorithms?
Yes, the TMS320F28033RSHS integrates a dedicated Control Law Accelerator (CLA) - a 32-bit floating-point math coprocessor that executes control code independently of the main C28x CPU. This enables parallel execution of time-critical loops (e.g., FOC current regulators) while the CPU handles communication, diagnostics, and supervisory tasks - reducing overall system latency and improving determinism in the TMS320F28033RSHS-based design.
How many high-resolution PWM channels does the TMS320F28033RSHS support?
The TMS320F28033RSHS supports 7 high-resolution PWM (HRPWM) channels. Each HRPWM channel delivers <150-ps duty-cycle resolution through enhanced counter and comparator logic - essential for precise dead-time control, soft-switching implementation, and narrow-pulse generation in SiC and GaN-based power converters using the TMS320F28033RSHS.
What ADC performance specifications apply to the TMS320F28033RSHS?
The TMS320F28033RSHS features a 12-bit successive-approximation ADC with 4.6 MSPS throughput, 14 input channels, and dual sample-and-hold architecture. Its conversion time is 216.67 ns, and it supports ratio-metric operation using internal VREFHI/VREFLO references - enabling accurate current/voltage measurement across supply and temperature variations in TMS320F28033RSHS-based power systems.
Is the TMS320F28033RSHS pin-compatible with other devices in the F2803x family?
Yes, the TMS320F28033RSHS shares identical pinout and footprint with all other 56-pin RSH-packaged F2803x variants (e.g., TMS320F28030RSHS, TMS320F28034RSHS, TMS320F28035RSHS). This allows direct substitution within the same PCB layout - provided firmware and peripheral configuration account for differences in flash size, CLA presence, and HRPWM count specific to the TMS320F28033RSHS.
TMS320F28033RSHS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 56-VFQFN Exposed Pad
- 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:
- 26
- 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 13x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28033RSHS FAQ
1.How can I place an order for TMS320F28033RSHS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28033RSHS 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 TMS320F28033RSHS reliable?
The price and inventory of TMS320F28033RSHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28033RSHS is usually 5 days.
3.What payment methods are accepted for TMS320F28033RSHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28033RSHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28033RSHS?
TMS320F28033RSHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28033RSHS 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 TMS320F28033RSHS?
For technical support, including TMS320F28033RSHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28033RSHS requirements.
6.How does Aetrix verify that TMS320F28033RSHS is sourced from the original manufacturer or authorized distributors?
All TMS320F28033RSHS 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 TMS320F28033RSHS meets industry standards.
7.What is the process for return or replacement of TMS320F28033RSHS?
All TMS320F28033RSHS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28033RSHS, 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 TMS320F28033RSHS part is unused and in its original packaging.
Return procedure for TMS320F28033RSHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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