Texas Instruments F28386DPTPQR

Overview

F28386DPTPQR from Texas Instruments is a dual-core real-time microcontroller featuring two 200-MHz TMS320C28x CPUs with IEEE 754 double-precision FPU, two 200-MHz Control Law Accelerators (CLAs), and an independent Arm Cortex-M4 Connectivity Manager running at 125 MHz. It integrates 512KB flash per C28x CPU (ECC-protected), 128KB global shared RAM (parity-protected), four 16-bit/12-bit ADCs (1.1 MSPS in 16-bit mode), and 32 ePWM channels - deployed in industrial motor drives, solar inverters, and servo control systems requiring deterministic low-latency execution.

For engineers reviewing the F28386DPTPQR datasheet, F28386DPTPQR pinout, F28386DPTPQR application, or F28386DPTPQR equivalent, key selection criteria include dual-C28x + CM heterogeneous architecture, EtherCAT Slave Controller support, CAN FD and USB 2.0 integration, functional safety certification up to ASIL B/SIL 2, and HLQFP-176 thermal performance for high-power-density embedded control.

Technical Context

The F28386DPTPQR implements a tightly coupled dual-C28x subsystem where each CPU executes independent real-time control loops with dedicated 512KB flash, 44KB local RAM, and hardware acceleration via TMU and VCRC instructions. The CLA operates at full 200 MHz with single-precision FPU, executing control law code concurrently without CPU intervention.

The isolated Connectivity Manager (CM) subsystem uses a 125-MHz Arm Cortex-M4 with 512KB ECC-protected flash and 96KB RAM to handle protocol stacks (Ethernet 1588, EtherCAT, USB 2.0, CAN FD), offloading communication tasks while preserving C28x bandwidth for time-critical PWM, ADC, and SDFM processing - enabled by IPC-based message RAM and hardware synchronization primitives.

Key Specifications

Pinout & Package

Package: 176-pin PowerPAD™ Thermally Enhanced Low-profile Quad Flatpack (HLQFP), 24 mm × 24 mm body, exposed thermal pad for enhanced heat dissipation in high-power motor control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with F28386DPTPQR, the F28388DPTPQR offers greater C28x program storage for complex safety-certified firmware, while the F28386DZWTQR provides superior I/O density and SDRAM support in a smaller package - both retain identical CM peripherals, safety features, and real-time control capabilities.

Availability

F28386DPTPQR is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and servo control systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification (AEC Q100 Grade 1).

Supply support for F28386DPTPQR 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 TMS320F2838x product line delivers heterogeneous real-time microcontrollers combining C28x DSP performance with Arm-based connectivity, targeting high-efficiency power electronics in motor control, renewable energy, and electric transportation.

FAQ

What is the core architecture of the F28386DPTPQR?

The F28386DPTPQR integrates two independent 200-MHz TMS320C28x 32-bit DSP cores and one 125-MHz Arm Cortex-M4 processor in a single die. Each C28x core has its own 512KB ECC-protected flash and 44KB local RAM, while the Cortex-M4 has 512KB flash and 96KB RAM. This heterogeneous architecture allows parallel execution of real-time control (C28x) and communication protocol stacks (Cortex-M4), with hardware interprocessor communication via message RAM and IPC registers. The F28386DPTPQR leverages this structure to deliver deterministic latency for motor control while maintaining robust network connectivity.

Does the F28386DPTPQR support functional safety standards?

Yes, the F28386DPTPQR is ISO 26262 ASIL B certified by TÜV SÜD and IEC 61508 SIL 2 certified, with hardware safety mechanisms including Hardware Built-in Self Test (HWBIST), Embedded Real-time Analysis and Diagnostic (ERAD), Background CRC (BGCRC), dual-zone security, and windowed watchdog timers. Its systematic capability reaches ASIL D and SIL 3, making it suitable for safety-critical applications such as industrial drives and on-board EV chargers. Documentation supporting system-level functional safety design is provided by Texas Instruments, and the F28386DPTPQR's safety features are validated in the device silicon - not dependent on external components.

What communication interfaces does the F28386DPTPQR include?

The F28386DPTPQR includes dual-domain communication: C28x peripherals (four SPI, four SCI/UART, two I²C, two McBSP, PMBus, FSI) and Connectivity Manager peripherals (CM-UART, CM-I²C, SSI, USB 2.0, 10/100 Ethernet 1588, EtherCAT Slave Controller, two CAN, and MCAN/CAN FD). The CM handles high-layer protocols (TCP/IP, EtherCAT, USB HID), while C28x manages time-critical serial links to sensors and gate drivers. This separation ensures that network stack execution does not interfere with sub-microsecond PWM timing - a key advantage of the F28386DPTPQR over single-core alternatives.

How does the F28386DPTPQR manage analog signal acquisition?

The F28386DPTPQR integrates four simultaneous-sampling 16-bit/12-bit ADCs, each capable of 1.1 MSPS (16-bit) or 3.5 MSPS (12-bit), with 12 differential or 24 single-ended inputs per ADC. Each ADC includes a dedicated sample-and-hold, hardware post-processing (averaging, offset/gain correction), and eight windowed comparators with integrated 12-bit DAC references. Three 12-bit buffered DAC outputs support analog feedback generation. This analog subsystem enables precise, low-latency current/voltage sensing in motor control and inverter applications - directly feeding the F28386DPTPQR's real-time control loops without external signal conditioning.

What package and thermal characteristics apply to the F28386DPTPQR?

The F28386DPTPQR is offered exclusively in the 176-pin PowerPAD™ Thermally Enhanced Low-profile Quad Flatpack (HLQFP) package, with a 24 mm × 24 mm body and exposed thermal pad. Its thermal resistance (θ_JA) is 23.5°C/W under JEDEC JESD51-7 conditions, enabling reliable operation at full 200-MHz C28x and 125-MHz Cortex-M4 speeds in ambient temperatures up to 125°C. The PowerPAD design facilitates direct thermal coupling to PCB copper planes, making the F28386DPTPQR suitable for high-power-density applications like servo drives and industrial inverters where thermal management is critical.