Texas Instruments TMX320F28377DPZPT
- Part No.:
- TMX320F28377DPZPT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
TMX320F28377DPZPT.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100QFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TMS320F28377DPZPT from Texas Instruments is a dual-core 32-bit real-time microcontroller with two 200MHz C28x CPUs, IEEE 754 FPU, TMU, VCU-II, and two 200MHz CLA coprocessors. It integrates four 16-/12-bit ADCs (up to 4.4MSPS system throughput), 24 ePWM channels (16 HRPWM), dual CAN, USB 2.0, and 169 GPIOs. It targets high-precision motor control in EV traction inverters and solar power converters.
For engineers reviewing the TMS320F28377DPZPT datasheet, TMS320F28377DPZPT pinout, TMS320F28377DPZPT application, or TMS320F28377DPZPT equivalent, key selection criteria include dual-CPU real-time partitioning, on-chip sigma-delta filtering for isolated current sensing, functional safety certification up to ASIL B/SIL 2, and support for deterministic closed-loop control at ≤1µs loop times.
Technical Context
The TMS320F28377DPZPT implements a tightly coupled dual-C28x architecture where each CPU runs independently at 200MHz with dedicated FPU, TMU, and VCU-II-enabling simultaneous torque/flux and speed/position loops. Its two CLAs execute floating-point control law code concurrently with main CPUs, reducing latency for overcurrent protection and PWM update timing.
Peripherals are partitioned across CPU1 and CPU2 via dedicated buses and message RAMs; ADC results feed directly into CLA-accessible buffers, while SDFM channels interface with external ΣΔ modulators for shunt-based current measurement. The device supports dual-zone security with 128-bit encryption keys and hardware BIST for functional safety compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU cores | Two independent 32-bit C28x CPUs, each at 200MHz, enabling parallel real-time control tasks |
| Floating-point unit | IEEE 754 single-precision FPU per core, accelerating trigonometric and matrix operations in motor control algorithms |
| Control Law Accelerators | Two 200MHz CLAs executing floating-point code independently-offloads time-critical protection logic from main CPUs |
| ADC subsystem | Four 16-/12-bit ADCs: 1.1MSPS (16-bit) or 3.5MSPS (12-bit) per converter, supporting differential or single-ended inputs for multi-sensor feedback |
| PWM capability | 24 ePWM channels with 16 high-resolution (HRPWM) outputs, enabling <150ps duty-cycle resolution for precise gate drive timing |
| Functional safety | ISO 26262 ASIL B and IEC 61508 SIL 2 certified; hardware integrity validated by TÜV SÜD |
| Package | 176-pin HLQFP (PTP suffix), thermally enhanced PowerPAD™ footprint for industrial motor drive thermal management |
Pinout & Package
176-pin PowerPAD™ Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), 26mm × 26mm body size with exposed thermal pad. Pinout conforms to TI's ZWT/PTP family mapping with dedicated analog supply pins (VDDA/VSSA), multiple VDDIO banks for mixed-voltage I/O, and ball-grid-compatible signal routing for EMI-sensitive control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power supply / ground | Isolated 1.2V analog domain for ADC reference stability; requires separate low-noise LDO and ferrite-bead filtering |
| ADCINx | Analog input channel | Differential-capable inputs (e.g., ADCINA0–ADCINA5) support direct connection to current-sense amplifiers or voltage dividers |
| ePWMxA / ePWMxB | High-resolution PWM output pair | Complementary outputs with programmable dead-band; routed to external gate drivers for three-phase inverter half-bridges |
| CANRXA / CANTXA | CAN 2.0B controller interface | Direct connection to ISO 11898-2 transceiver; supports pin-bootable firmware updates and distributed control messaging |
| GPIOxx | Multiplexed general-purpose I/O | 169 pins with input filtering and configurable pull-up/down; supports encoder quadrature (eQEP), capture (eCAP), and digital fault signaling (FLT1/FLT2) |
Key Features
| Feature | Design Value |
|---|---|
| Dual C28x + CLA architecture | Enables true parallel execution of main control loop (CPU1) and fast protection logic (CLA1), eliminating CPU contention in overcurrent events |
| Sigma-Delta Filter Module (SDFM) | Eight input channels with parallel 2-stage filters-supports isolated shunt current sensing without external DSP or FPGA preprocessing |
| Windowed comparator subsystem | Eight comparators with integrated 12-bit DAC references for hardware-triggered fault response (<100ns latency) during overvoltage or overcurrent |
| Configurable Logic Block (CLB) | Four programmable logic tiles augment peripheral functionality-e.g., implementing position manager logic or custom PWM edge modulation |
| Dual EMIF interfaces | EMIF1 (16-/32-bit) and EMIF2 (16-bit) support external SDRAM for data logging or FPGA co-processing in high-throughput applications |
Applications
| EV Traction Inverter Control | Solar String Inverter |
|---|---|
Use Scenario: Real-time field-oriented control (FOC) of permanent magnet synchronous motors in battery electric vehicles, requiring sub-microsecond current loop closure and hardware fault response. IC Role / Device Role / Timing Role: Dual-core MCU executes torque/flux loops on CPU1 and speed/position estimation on CPU2; CLAs handle overcurrent shutdown and PWM synchronization. Use Value: 16-bit ADCs with SDFM enable ±0.1% current measurement accuracy using shunt resistors; HRPWM ensures <150ps gate timing resolution for SiC MOSFETs. | Use Scenario: MPPT and grid-synchronization control in residential solar string inverters, operating under rapidly varying irradiance and grid voltage conditions. IC Role / Device Role / Timing Role: CPU1 manages DC-link voltage regulation and MPPT algorithm; CPU2 handles grid-tie synchronization, harmonic compensation, and anti-islanding detection. Use Value: Four independent ADCs sample PV voltage, PV current, AC voltage, and AC current simultaneously; dual CAN interfaces enable module-level communication and firmware updates. |
| Industrial Servo Drive | Energy Storage PCS |
Use Scenario: High-bandwidth position and velocity control in CNC machine tools and robotic arms, demanding jitter-free motion profiling and nanosecond-level interrupt latency. IC Role / Device Role / Timing Role: eQEP modules decode encoder signals; eCAP captures hall sensor edges; CLA performs real-time trajectory interpolation independent of main CPU load. Use Value: 169 GPIOs support encoder, resolver, and analog feedback interfaces; 24 ePWM channels drive multi-axis motor phases with synchronized dead-time insertion. | Use Scenario: Bi-directional power conversion between battery stacks and medium-voltage DC bus in utility-scale energy storage systems, requiring precise active/reactive power control and grid support functions. IC Role / Device Role / Timing Role: CPU1 controls DC-DC bidirectional converters; CPU2 manages DC-AC inverter stage and grid compliance (IEEE 1547); USB enables local commissioning and diagnostics. Use Value: Functional safety certification (ASIL B/SIL 2) validates hardware integrity for protection logic; dual EMIFs interface with external memory for waveform capture and event logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28379DPTP | 1MB flash (vs. 512KB), 204KB RAM (vs. 172KB), full 169 GPIO count retained in PTP package | Supports larger control algorithms and more extensive data logging; identical peripheral set and pinout | Select when firmware complexity exceeds 512KB or additional RAM is required for real-time FFT or model-predictive control |
| TMS320F28377DZWT | 337-ball nFBGA (ZWT) package vs. 176-pin HLQFP; same core/peripheral specs and memory map | Better thermal performance and higher I/O density; requires PCB redesign for BGA assembly and reflow | Select for space-constrained designs needing maximum peripheral access or improved thermal dissipation in sealed enclosures |
Compared with TMS320F28377DPZPT, the TMS320F28379DPTP offers expanded memory for advanced control algorithms without layout change, while the TMS320F28377DZWT provides superior thermal and routing density at the cost of BGA assembly complexity-both retain identical real-time performance and safety certification.
Availability
TMS320F28377DPZPT is available at Aetrix Electronics and suitable for EV traction inverters, solar string inverters, and industrial servo drives requiring stable component supply across multi-year production cycles.
Supply support for TMS320F28377DPZPT 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 for industrial, automotive, and power applications.
The TMS320F28377DPZPT belongs to TI's C2000™ real-time control MCU portfolio, engineered specifically for deterministic, low-latency closed-loop control in motor drives, digital power, and renewable energy systems.
FAQ
What is the maximum ADC sampling rate supported by the TMS320F28377DPZPT in 12-bit mode?
The TMS320F28377DPZPT supports up to 3.5MSPS per ADC in 12-bit mode, delivering up to 14MSPS system throughput across all four ADCs. This enables simultaneous sampling of voltage, current, temperature, and auxiliary sensors in high-speed motor control applications without external multiplexing. Each ADC includes a dedicated Sample-and-Hold circuit and hardware post-processing for real-time offset calibration and windowed comparisons.
Does the TMS320F28377DPZPT support functional safety certification for automotive use?
Yes, the TMS320F28377DPZPT is qualified for functional safety applications with ISO 26262 ASIL B and IEC 61508 SIL 2 certification verified by TÜV SÜD. It includes hardware BIST, lockstep-capable peripherals, ECC-protected memory, and diagnostic libraries to support safety-critical motor control in automotive traction inverters and onboard chargers.
How many high-resolution PWM (HRPWM) channels does the TMS320F28377DPZPT provide?
The TMS320F28377DPZPT provides 16 high-resolution PWM (HRPWM) channels-eight per CPU-each capable of <150ps duty-cycle resolution. These are implemented on eight ePWM modules (A/B pairs), supporting independent frequency, phase, and dead-band control for SiC and GaN gate driver timing in high-frequency power converters.
Can the TMS320F28377DPZPT interface with external ΣΔ modulators?
Yes, the TMS320F28377DPZPT includes an eight-channel Sigma-Delta Filter Module (SDFM) that accepts bitstream inputs from external ΣΔ modulators. Each channel features two parallel 2-stage digital filters, enabling isolated shunt current sensing with hardware-accelerated decimation-eliminating the need for external FPGA or DSP preprocessing.
What package type and thermal characteristics define the TMS320F28377DPZPT?
The TMS320F28377DPZPT uses a 176-pin HLQFP (PTP) package with PowerPAD™ thermal enhancement, measuring 26mm × 26mm with a 24mm × 24mm body. Its θJA is 26.5°C/W and θJC is 2.5°C/W, enabling reliable operation up to 105°C junction temperature in convection-cooled motor drive environments.
TMX320F28377DPZPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-TQFP Exposed Pad
- Series:
- C2000™ C28x Delfino™
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 200MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, McBSP, SCI, SPI, uPP, UART/USART, USB
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 41
- Program Memory Size:
- 1MB (512K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 102K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 3.47V
- Data Converters:
- A/D 14x12b; D/A 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMX320F28377DPZPT FAQ
1.How can I place an order for TMX320F28377DPZPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMX320F28377DPZPT 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 TMX320F28377DPZPT reliable?
The price and inventory of TMX320F28377DPZPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMX320F28377DPZPT is usually 5 days.
3.What payment methods are accepted for TMX320F28377DPZPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMX320F28377DPZPT transactions.
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4.How is shipping managed for TMX320F28377DPZPT?
TMX320F28377DPZPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMX320F28377DPZPT 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 TMX320F28377DPZPT?
For technical support, including TMX320F28377DPZPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMX320F28377DPZPT requirements.
6.How does Aetrix verify that TMX320F28377DPZPT is sourced from the original manufacturer or authorized distributors?
All TMX320F28377DPZPT 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 TMX320F28377DPZPT meets industry standards.
7.What is the process for return or replacement of TMX320F28377DPZPT?
All TMX320F28377DPZPT units undergo pre-shipment inspection (PSI). If there is an issue with TMX320F28377DPZPT, 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 TMX320F28377DPZPT part is unused and in its original packaging.
Return procedure for TMX320F28377DPZPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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