Texas Instruments TMX320F28377SPTPT

Overview

TMS320F28377SPTPT from Texas Instruments is a 32-bit floating-point real-time microcontroller with 200MHz C28x CPU, IEEE 754 FPU, TMU, VCU-II, and CLA coprocessor - all operating at 200MHz. It integrates four 16-bit/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 TMS320F28377SPTPT datasheet, TMS320F28377SPTPT pinout, TMS320F28377SPTPT application, or TMS320F28377SPTPT equivalent, key selection criteria include its single-CPU/CLA subsystem architecture, –40°C to 125°C junction temperature rating, 1MB flash with ECC, 169-pin HLQFP (PTP) package, and functional safety compliance up to ASIL B/SIL 2.

Technical Context

The TMS320F28377SPTPT implements a deterministic real-time control architecture centered on a 200MHz C28x CPU augmented by a parallel 200MHz CLA coprocessor, enabling concurrent execution of time-critical control loops and background tasks. Its analog subsystem includes four independent ADCs supporting simultaneous 16-bit (1.1MSPS each) or 12-bit (3.5MSPS each) sampling with hardware post-processing - including windowed comparators, DAC-referenced thresholds, and SDFM integration for isolated current sensing.

System-level timing and reliability are enforced via dual internal 10MHz oscillators, missing-clock detection, windowed watchdog, and hardware BIST. The device supports ISO 11898-1/CAN 2.0B-compliant dual CAN interfaces, USB 2.0 MAC+PHY, and uPP for FPGA interfacing - all accessible in the 176-pin PTP package without pin multiplexing conflicts.

Key Specifications

Pinout & Package

176-pin PowerPAD™ Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), 26mm × 26mm body size, with exposed thermal pad for enhanced PCB heat transfer.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time control applications.

Compared with TMS320F28379SPTPT and TMS320F28377S-ZWT, the TMS320F28377SPTPT delivers optimal balance of performance, I/O, thermal management, and manufacturability in thermally demanding 176-pin QFP form factor - making it ideal for cost-sensitive, volume-production motor drives and inverters.

Availability

TMS320F28377SPTPT is available at Aetrix Electronics and suitable for EV traction inverters, solar string inverters, and industrial servo drives requiring stable component supply across extended product lifecycles.

Supply support for TMS320F28377SPTPT 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.

The TMS320F28377SPTPT belongs to TI's C2000™ real-time control MCU portfolio, designed specifically for closed-loop control in power electronics - emphasizing deterministic timing, analog integration, and functional safety for motor drives, renewable energy, and transportation systems.

FAQ

What is the maximum ADC sampling rate supported by the TMS320F28377SPTPT?

The TMS320F28377SPTPT supports up to 1.1 million samples per second (MSPS) per ADC in 16-bit mode, delivering up to 4.4MSPS system throughput across its four independent ADC modules. Each ADC includes a dedicated sample-and-hold circuit and hardware post-processing - enabling synchronized, high-fidelity acquisition of motor phase currents and DC-link voltages without CPU overhead. This specification is validated across the full –40°C to 125°C operating range.

Does the TMS320F28377SPTPT support functional safety certification?

Yes, the TMS320F28377SPTPT is developed for functional safety applications and certified by TÜV SÜD to ISO 26262 up to ASIL B and IEC 61508 up to SIL 2. It includes hardware integrity features such as ECC-protected memory, windowed watchdog timers, missing-clock detection, and Hardware Built-in Self Test (HWBIST). Documentation supporting system-level compliance with IEC 60730 Class C and UL 1998 Class 2 is provided by Texas Instruments.

How many high-resolution PWM channels does the TMS320F28377SPTPT provide?

The TMS320F28377SPTPT provides 16 high-resolution PWM (HRPWM) channels - eight modules with A/B channel pairs, each supporting sub-nanosecond resolution. These channels operate alongside 24 total ePWM outputs and include hardware-assisted dead-band generation compatible with both standard and high-resolution modes. This enables precise gate timing control for wide-bandgap power devices in high-frequency switching topologies.

What package type and thermal characteristics define the TMS320F28377SPTPT?

The TMS320F28377SPTPT uses a 176-pin PowerPAD™ Thermally Enhanced Low-Profile Quad Flatpack (HLQFP) with suffix PTP. Its exposed thermal pad enables direct PCB copper pour connection for efficient heat dissipation. Thermal resistance (θ_JA) is 21.5°C/W under JEDEC JESD51-7 conditions, and junction-to-case (θ_JC) is 2.5°C/W - making it suitable for conduction-cooled inverter modules operating continuously at 125°C junction temperature.

Can the TMS320F28377SPTPT execute code independently on its CLA coprocessor?

Yes, the TMS320F28377SPTPT includes a fully autonomous Control Law Accelerator (CLA) that executes IEEE 754 single-precision floating-point code concurrently with the main C28x CPU - both running at 200MHz. The CLA responds to peripheral triggers (e.g., ADC end-of-conversion or PWM timer overflow) and uses dedicated message RAM for inter-processor communication. This architecture allows the CLA to handle time-critical control loops while the C28x manages communications, diagnostics, and user interface tasks.