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Texas Instruments TMS320F28034RSHS
- Part No.:
- TMS320F28034RSHS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
TMS320F28034RSHS.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 56VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,159
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Product details
Overview
TMS320F28034RSHS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32 KB flash, 10 KB SARAM, 12-bit ADC (4.6 MSPS, 14 channels), 12 ePWM channels (4 with HRPWM), and 32-bit CPU timers - deployed in motor control, solar inverters, and EV charging power modules.
For engineers reviewing the TMS320F28034RSHS datasheet, TMS320F28034RSHS pinout, TMS320F28034RSHS application, or TMS320F28034RSHS equivalent, key selection criteria include CLA offload capability, HRPWM dual-edge modulation support, ADC sampling latency (216.67 ns), GPIO count (33 shared pins), and VQFN-56 thermal performance for compact power-conversion designs.
Technical Context
The TMS320F28034RSHS implements a Harvard-architecture C28x CPU with atomic instructions and unified memory mapping, enabling deterministic real-time loop execution. Its CLA operates independently of the main CPU to accelerate control-law computation using 32-bit floating-point math.
Peripheral integration includes ePWM modules with high-resolution submodules (HRPWM) for precise timing control, analog comparators routed directly to PWM outputs for fast protection, and a 12-bit ADC with dual sample-and-hold supporting ratio-metric references (VREFHI/VREFLO) and 4.6 MSPS throughput.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point core at 60 MHz (16.67 ns cycle time); supports 16×16/32×32 MAC and atomic operations for deterministic control loops. |
| Control Law Accelerator | Independent 32-bit floating-point CLA; executes control algorithms concurrently with CPU to reduce main-loop latency in servo/motor applications. |
| Flash Memory | 32 KB on-chip flash (16-bit word); supports secure code storage with 128-bit encryption key and lock for firmware IP protection. |
| ADC Performance | 12-bit SAR ADC with 4.6 MSPS sampling rate, 216.67 ns conversion time, and 14 input channels - optimized for fast current/voltage sensing in digital power stages. |
| ePWM Channels | 12 ePWM outputs (8 standard + 4 high-resolution); HRPWM enables dual-edge modulation for <100-ps timing resolution in resonant LLC or SiC gate drive. |
| Package & Temp Range | VQFN-56 (7 mm × 7 mm); rated for industrial operation from –40°C to +125°C (S-grade), suitable for under-hood or high-temperature power module environments. |
| I/O Count | 33 multiplexed GPIO pins with input filtering; includes dedicated eCAP, eQEP, CAN, LIN, I²C, SPI, and SCI interfaces for sensor and communication subsystem integration. |
Pinout & Package
Package: 56-pin Very Thin Quad Flatpack No-Lead (VQFN), 7.0 mm × 7.0 mm body size, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | VDD (3.3 V core), VDDA (3.3 V analog), VDDIO (3.3 V I/O); internal regulator enables single-rail operation without sequencing. |
| VSS, VSSA, VREFLO | Ground & reference return | VSS (digital ground), VSSA (analog ground), VREFLO (ADC reference low); VREFLO tied internally to VSSA on RSH package. |
| X1, X2 | Clock oscillator terminals | Crystal/resonator connection points; supports on-chip oscillator or external clock input up to 20 MHz. |
| GPIO0–GPIO33 | Configurable I/O | 33 shared GPIO pins with peripheral multiplexing (ePWM, eCAP, eQEP, CAN, LIN, SPI, I²C, SCI); default reset state is GPIO function. |
| TRST, TCK, TMS, TDI, TDO | JTAG debug interface | IEEE 1149.1-compliant boundary scan; TRST requires external 2.2-kΩ pulldown for reliable debug probe attachment. |
| ADCINA0–ADCINA7, ADCINB0–ADCINB7 | Analog inputs | 14-channel 12-bit ADC input pairs; ADCINA0 shares pin with VREFHI - mutually exclusive use per hardware design. |
| EPWM1A–EPWM4B, EPWMSYNCI/EPWMSYNCO | PWM output & sync | 12 ePWM outputs (4 with HRPWM); EPWMSYNCI/SYNCO enable inter-module synchronization for multi-phase inverter control. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Control Law Accelerator (CLA) | Offloads PID, field-oriented control (FOC), or observer calculations from CPU - reduces main-loop jitter and enables higher control bandwidth. |
| High-Resolution PWM (HRPWM) | 4 HRPWM channels support 150-ps duty-cycle resolution and dual-edge modulation for precise timing in SiC/GaN-based resonant converters. |
| Analog Comparator Integration | 3 comparators with internal 10-bit DAC references; outputs directly route to ePWM trip zones for sub-microsecond overcurrent shutdown. |
| Code Security Module | 128-bit encrypted key + lock mechanism prevents unauthorized read-out of flash/SARAM/OTP - critical for proprietary motor algorithms and firmware IP. |
| Single 3.3-V Supply Operation | Integrated voltage regulator eliminates need for external LDOs or power sequencing - simplifies BOM and PCB layout in space-constrained power modules. |
Applications
| Motor Drive Control | Solar Inverter Power Stage |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of PMSM/BLDC motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm (via C28x + CLA), synchronized PWM generation (ePWM + HRPWM), and current sensing (ADC + comparators). Use Value: Enables <5-μs current-loop update with hardware-accelerated trigonometric functions and sub-100-ps PWM edge placement for >20 kHz switching efficiency. | Use Scenario: DC-AC conversion in string inverters with MPPT tracking and grid-synchronization requirements. IC Role / Device Role / Timing Role: Dual-core control (CPU for MPPT/state machine, CLA for grid-current regulation), isolated ADC interfacing, and eCAN/LIN communication to monitoring units. Use Value: Achieves IEEE 1547-compliant anti-islanding response (<2 s) and THD <3% at full load via deterministic 60-MHz timing and 4.6 MSPS ADC sampling. |
| EV On-Board Charger (OBC) | Industrial AC-DC Power Supply |
Use Scenario: Bidirectional AC-DC and DC-DC conversion in 3.3–6.6 kW OBC modules for passenger EVs. IC Role / Device Role / Timing Role: Primary-side digital controller for PFC and isolated DC-DC stages; manages interleaved ePWM, thermal monitoring, and CAN diagnostics. Use Value: Supports soft-switching topologies (LLC, phase-shifted full-bridge) via HRPWM synchronization and <217 ns ADC latency for fast voltage/current loop closure. | Use Scenario: High-efficiency, high-reliability AC-DC conversion in telecom rectifiers and server PSUs. IC Role / Device Role / Timing Role: Digital power controller managing active clamp flyback/PFC stages, fault logging, and PMBus/I²C telemetry reporting. Use Value: Delivers >96% peak efficiency and <10-ms overload recovery using CLA-accelerated adaptive dead-time control and comparator-based overvoltage protection. |
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, CLA enabled, 14 ePWM channels, 16 ADC channels - higher memory and peripheral count than TMS320F28034RSHS. | Preferred for complex multi-loop systems (e.g., dual-motor drives) requiring larger code footprint and additional ADC/ePWM resources. | Select when firmware complexity exceeds 32 KB flash or when >12 ePWM outputs are needed for multi-phase topologies. |
| TMS320F28033RSHS | 32 KB flash, 10 KB SARAM, CLA enabled, 8 ePWM channels, 13 ADC channels - reduced PWM/ADC count vs. TMS320F28034RSHS. | Suitable for cost-sensitive single-axis motion control or lower-channel-count digital power where HRPWM is still required. | Choose for simplified BOMs in entry-level inverters or motor drives where 12 ePWM channels are unnecessary. |
Compared with TMS320F28035RSHS, the TMS320F28034RSHS offers balanced memory/peripheral scaling for mid-tier digital power; versus TMS320F28033RSHS, it adds four ePWM channels and one ADC channel while retaining identical CLA, HRPWM, and thermal specs - optimizing feature density for 3–6 kW applications.
Availability
TMS320F28034RSHS is available at Aetrix Electronics and suitable for motor control, solar inverter power stages, and EV on-board charger designs requiring stable component supply, long-term lifecycle support, and industrial temperature grade (–40°C to +125°C).
Supply support for TMS320F28034RSHS 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 and embedded processing technologies, with leadership in real-time control, power management, and signal chain solutions.
The TMS320F2803x product line delivers cost-optimized C2000™ real-time MCUs for digital power, motor control, and energy conversion - combining C28x CPU performance, CLA acceleration, and analog integration in low-pin-count packages.
FAQ
What is the maximum operating frequency and instruction cycle time of the TMS320F28034RSHS?
The TMS320F28034RSHS operates at a maximum CPU frequency of 60 MHz, delivering a 16.67 ns instruction cycle time. This timing is fixed across all operating conditions and enables deterministic execution of real-time control loops with sub-microsecond latency - critical for high-speed motor commutation and digital power regulation in the TMS320F28034RSHS.
Does the TMS320F28034RSHS include a Control Law Accelerator (CLA), and what functions does it support?
Yes, the TMS320F28034RSHS includes a dedicated 32-bit floating-point Control Law Accelerator (CLA) that runs independently of the main C28x CPU. It supports real-time execution of control algorithms such as PID, field-oriented control (FOC), and observers - offloading compute-intensive tasks to improve system responsiveness and reduce CPU utilization in the TMS320F28034RSHS.
How many ePWM channels and HRPWM modules are available on the TMS320F28034RSHS?
The TMS320F28034RSHS provides 12 ePWM channels, of which 4 are enhanced with High-Resolution PWM (HRPWM) capability. These HRPWM channels support dual-edge modulation with <100-ps resolution, enabling precise timing control for advanced topologies like resonant LLC and SiC-based converters in the TMS320F28034RSHS.
What is the ADC specification of the TMS320F28034RSHS, including resolution, speed, and channel count?
The TMS320F28034RSHS integrates a 12-bit successive-approximation register (SAR) ADC with 4.6 MSPS sampling rate, 216.67 ns conversion time, and 14 input channels. It supports dual sample-and-hold and ratio-metric referencing (VREFHI/VREFLO), making it suitable for high-fidelity current/voltage sensing in digitally controlled power stages using the TMS320F28034RSHS.
What package type and temperature grade does the TMS320F28034RSHS use?
The TMS320F28034RSHS uses a 56-pin Very Thin Quad Flatpack No-Lead (VQFN) package measuring 7.0 mm × 7.0 mm with an exposed thermal pad. It is rated for industrial temperature operation from –40°C to +125°C (S-grade), ensuring reliability in demanding environments such as power converters, motor drives, and EV charging modules built with the TMS320F28034RSHS.
TMS320F28034RSHS 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:
TMS320F28034RSHS FAQ
1.How can I place an order for TMS320F28034RSHS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28034RSHS 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 TMS320F28034RSHS reliable?
The price and inventory of TMS320F28034RSHS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28034RSHS is usually 5 days.
3.What payment methods are accepted for TMS320F28034RSHS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28034RSHS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28034RSHS?
TMS320F28034RSHS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28034RSHS 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 TMS320F28034RSHS?
For technical support, including TMS320F28034RSHS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28034RSHS requirements.
6.How does Aetrix verify that TMS320F28034RSHS is sourced from the original manufacturer or authorized distributors?
All TMS320F28034RSHS 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 TMS320F28034RSHS meets industry standards.
7.What is the process for return or replacement of TMS320F28034RSHS?
All TMS320F28034RSHS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28034RSHS, 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 TMS320F28034RSHS part is unused and in its original packaging.
Return procedure for TMS320F28034RSHS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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