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Texas Instruments TMS320F28035RSHS
- Part No.:
- TMS320F28035RSHS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
TMS320F28035RSHS.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 56VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:26,680
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Product details
Overview
TMS320F28035RSHS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 64KB flash, 10KB SARAM, 12-bit ADC (4.6 MSPS), 14 ePWM channels, and HRPWM capability - deployed in motor control, solar inverters, and EV charging power modules.
For engineers reviewing the TMS320F28035RSHS datasheet, TMS320F28035RSHS pinout, TMS320F28035RSHS application, or TMS320F28035RSHS equivalent, key selection factors include CLA offload support, 56-pin VQFN thermal performance, -40°C to 125°C operation, and dual-edge HRPWM for high-efficiency digital power conversion.
Technical Context
The TMS320F28035RSHS 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 loops independently of the main CPU. Its clock system includes dual internal oscillators, PLL, and missing-clock detection.
Peripheral integration includes three 32-bit CPU timers, ePWM modules with HRPWM (dual-edge modulation), eCAP/HRCAP for precise timing capture, eQEP for position sensing, and analog subsystems comprising comparators with DACs, temperature sensor, and 16-channel 12-bit ADC with dual sample-and-hold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point core at 60 MHz (16.67 ns cycle time); enables deterministic real-time control with unified memory model. |
| Control Law Accelerator | Dedicated 32-bit floating-point CLA; runs independent control code to offload CPU and reduce loop latency. |
| Flash Memory | 64KB (16-bit word); stores firmware with code-security module and 128-bit lock for IP protection. |
| ADC Performance | 12-bit, 4.6 MSPS with 216.67 ns conversion time and 16 input channels; supports ratio-metric references (VREFHI/VREFLO). |
| ePWM Channels | 14 channels with High-Resolution PWM (HRPWM); enables sub-nanosecond duty-cycle resolution for SiC/GaN gate driving. |
| Package & Temp Range | 56-pin VQFN (7.0 mm × 7.0 mm); rated for industrial operation from –40°C to +125°C (S-grade). |
| I/O Count | 45 GPIO pins (multiplexed), including 6 AIO pins; supports peripheral function routing and input filtering for noise immunity. |
Pinout & Package
Package: 56-pin Very Thin Quad Flatpack No-Lead (VQFN), 7.0 mm × 7.0 mm body size, 0.4 mm pitch, exposed thermal pad. Designed for compact, thermally demanding applications such as on-board chargers and microinverters.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | VDD (core), VDDA (analog), VDDIO (I/O) each require separate 3.3 V regulation; no sequencing needed due to internal regulator. |
| VSS, VSSA, VREFLO | GND and reference return | VSSA and VREFLO are internally tied on RSH package; ensures stable ADC reference ground for precision measurements. |
| X1, X2 | Crytal oscillator terminals | Support external crystal/resonator; internal oscillator available if X1/X2 unused - simplifies BOM. |
| GPIO0–GPIO44 | Multiplexed I/O | 45 total GPIOs with per-pin pullup control; default reset state is GPIO function unless overridden by peripheral enable registers. |
| TCK, TMS, TDI, TDO, TRST | JTAG boundary scan | IEEE 1149.1-compliant debug interface; TRST requires external 2.2-kΩ pulldown for reliable test mode entry. |
| EPWM1A/1B–EPWM7A/7B | PWM output terminals | 14 ePWM outputs with dead-band, trip-zone, and HRPWM capability; critical for isolated gate driver interfacing in inverter stages. |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 16-channel 12-bit ADC with two banks (A/B); supports simultaneous sampling via dual sample-and-hold for current/voltage vector control. |
| COMP1A–COMP3B, COMP1OUT–COMP3OUT | Comparator inputs/outputs | Three analog comparators with internal 10-bit DAC references; outputs directly route to ePWM trip zones for fast overcurrent protection. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Control Law Accelerator (CLA) | Offloads time-critical control loops (e.g., FOC inner current loop) from C28x CPU, reducing jitter and enabling higher PWM frequencies. |
| High-Resolution PWM (HRPWM) | Enables dual-edge modulation with <150 ps resolution - essential for minimizing switching losses in SiC/GaN-based power stages. |
| Integrated Analog Subsystem | Combines 12-bit ADC, 3 comparators with DACs, temperature sensor, and voltage references - eliminates need for external signal-conditioning ICs. |
| Code Security Module | 128-bit encryption key and lock mechanism prevents firmware reverse engineering and unauthorized flash access in production units. |
| Single 3.3-V Supply Operation | Internal voltage regulator eliminates multi-rail power design; reduces bill-of-materials and layout complexity in space-constrained systems. |
Applications
| Motor Drive Control | Solar Inverter Power Stage |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm (current/voltage loops), PWM generation, and analog feedback acquisition via ADC/comparators. Use Value: CLA accelerates inner current loop execution below 1 µs, enabling >20 kHz switching while maintaining torque ripple <2%. | Use Scenario: DC-AC conversion in string inverters with MPPT tracking and grid-synchronization requirements. IC Role / Device Role / Timing Role: Dual-role controller: MPPT algorithm on C28x core and grid-synchronization phase-locked loop on CLA. Use Value: HRPWM and 4.6 MSPS ADC support 50/60 Hz fundamental with >10 kHz carrier, achieving THD <0.8% at full load. |
| EV On-Board Charger (OBC) | Energy Storage PCS |
Use Scenario: Bidirectional AC-DC and DC-DC conversion in 6.6 kW OBC modules for passenger EVs. IC Role / Device Role / Timing Role: Primary controller for PFC stage and isolated DC-DC LLC converter, managing interleaved PWM and voltage/current protection. Use Value: 14 ePWM channels and trip-zone logic allow coordinated gate drive for 3-phase PFC + full-bridge LLC with <500 ns fault response. | Use Scenario: Power conversion between battery stack (400–800 V DC) and grid-tied AC in residential/commercial energy storage systems. IC Role / Device Role / Timing Role: System-level controller handling DC-link voltage regulation, battery SOC management, and anti-islanding protection. Use Value: Integrated eCAN and LIN interfaces enable direct communication with BMS and grid relay modules without external protocol translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28034RSHS | Same 56-pin VQFN package and 60 MHz C28x core, but with 32KB flash, 8KB SARAM, and no CLA accelerator. | Lacks CLA offload capability; suitable for simpler scalar control or cost-sensitive designs without tight loop timing constraints. | Select when CLA is unnecessary and firmware size ≤32 KB; retains identical pinout and peripheral set except CLA and memory. |
| TMS320F28035PNS | Same core, CLA, memory, and peripherals, but in 80-pin LQFP (12 mm × 12 mm) package with extended GPIO count (45 vs. 45 shared, plus more AIO). | Better thermal dissipation and routing flexibility; supports additional analog inputs and eQEP/eCAP functions not routed to RSH package. | Select when board layout allows larger footprint and additional analog I/O or encoder interfaces are required beyond RSH pin limitations. |
Compared with TMS320F28034RSHS, the TMS320F28035RSHS adds CLA acceleration and doubles flash capacity - critical for complex FOC + communication stacks. Versus TMS320F28035PNS, it trades package size and thermal margin for compactness and lower PCB area in space-constrained OBC or microinverter modules.
Availability
TMS320F28035RSHS is available at Aetrix Electronics and suitable for motor drives, solar inverters, and EV charging power modules requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TMS320F28035RSHS 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 digital signal processing technologies with leadership in real-time control solutions.
The TMS320F2803x product line delivers entry-performance C2000™ MCUs optimized for cost-sensitive, high-efficiency digital power and motor control applications - emphasizing integration, thermal efficiency, and CLA-accelerated determinism.
FAQ
What is the maximum operating temperature rating for the TMS320F28035RSHS?
The TMS320F28035RSHS is rated for operation from –40°C to +125°C (S-grade), validated per manufacturer specifications for industrial environments. This rating applies specifically to the RSH package variant and is confirmed in the device comparison table and ordering information section of the SPRS584Q datasheet.
Does the TMS320F28035RSHS include a hardware floating-point unit (FPU)?
No, the TMS320F28035RSHS does not include a hardware FPU. It features a fixed-point C28x CPU core and a separate 32-bit floating-point Control Law Accelerator (CLA) for parallel math-intensive control tasks - distinct from an on-core FPU found in later F2806x/F2807x families.
How many ePWM modules are accessible on the TMS320F28035RSHS package?
The TMS320F28035RSHS provides 14 ePWM channels, as confirmed in Table 4-1 of the SPRS584Q datasheet under the "ePWM channels" row for the 28035 column. All 14 channels are fully functional and mapped to GPIO pins in the 56-pin RSH package layout.
Is the CLA present in all TMS320F2803x variants, or only specific ones?
The CLA is present only in the TMS320F28033 and TMS320F28035 devices within the F2803x family, as explicitly indicated in Table 4-1 of the SPRS584Q datasheet. The TMS320F28035RSHS includes the CLA, whereas TMS320F28030–TMS320F28032 and TMS320F28034 do not.
Can the TMS320F28035RSHS support both CAN and LIN communication simultaneously?
Yes, the TMS320F28035RSHS integrates one enhanced Controller Area Network (eCAN) module and one Local Interconnect Network (LIN) module, both active concurrently. Pin assignments for CANTXA/CANRXA and LINTXA/LINRXA are defined in Figure 5-1 (RSH pin diagram) and confirmed in Table 4-1.
TMS320F28035RSHS 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:
- 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 13x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28035RSHS FAQ
1.How can I place an order for TMS320F28035RSHS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28035RSHS 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 TMS320F28035RSHS reliable?
The price and inventory of TMS320F28035RSHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28035RSHS is usually 5 days.
3.What payment methods are accepted for TMS320F28035RSHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28035RSHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28035RSHS?
TMS320F28035RSHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28035RSHS 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 TMS320F28035RSHS?
For technical support, including TMS320F28035RSHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28035RSHS requirements.
6.How does Aetrix verify that TMS320F28035RSHS is sourced from the original manufacturer or authorized distributors?
All TMS320F28035RSHS 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 TMS320F28035RSHS meets industry standards.
7.What is the process for return or replacement of TMS320F28035RSHS?
All TMS320F28035RSHS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28035RSHS, 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 TMS320F28035RSHS part is unused and in its original packaging.
Return procedure for TMS320F28035RSHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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