Texas Instruments TMS320F28065PFPS

Overview

TMS320F28065PFPS from Texas Instruments is a 90-MHz C28x-based real-time microcontroller with integrated FPU, CLA, and 12-bit 3.46-MSPS ADC, designed for closed-loop motor control and digital power conversion in industrial inverters and EV charging modules.

For engineers reviewing the TMS320F28065PFPS datasheet, TMS320F28065PFPS pinout, TMS320F28065PFPS application, or TMS320F28065PFPS equivalent, key selection criteria include ePWM channel count (16 total, 8 HRPWM-capable), on-chip flash (64 KB), RAM (34 KB), USB 2.0 support, and 80-pin HTQFP PowerPAD™ package thermal performance.

Technical Context

The TMS320F28065PFPS implements a Harvard-architecture C28x CPU with native single-precision floating-point execution and an independent 32-bit CLA for parallel control law processing. Its peripheral set includes dual-sample-and-hold ADC with 16 channels, three eCAP modules, four HRCAP modules, and two eQEP interfaces.

It integrates analog comparators with internal 10-bit references routed directly to ePWM outputs, supports ratio-metric VREFHI/VREFLO referencing, and features dual zero-pin oscillators plus PLL-based clock generation with missing-clock detection and watchdog timer.

Key Specifications

Pinout & Package

80-pin HTQFP PowerPAD™ (PFP) package with exposed thermal pad soldered to PCB ground plane; requires thermal vias for effective heat dissipation per TI PowerPAD™ guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28069PFP and TMS320F280049CPN, the TMS320F28065PFPS offers optimal cost-performance balance for established industrial motor drives and OBCs where 64 KB flash and proven peripheral integration meet requirements without overengineering.

Availability

TMS320F28065PFPS is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and EV on-board chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TMS320F28065PFPS 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 TMS320F28065PFPS belongs to TI's C2000™ real-time MCU family, engineered specifically for deterministic control in power electronics - emphasizing high-resolution PWM, fast analog acquisition, and hardware-accelerated math for motor and energy conversion systems.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28065PFPS?

The TMS320F28065PFPS operates at a maximum CPU frequency of 90 MHz, delivering an instruction cycle time of 11.11 ns. This timing is guaranteed under recommended operating conditions (3.3-V supply, –40°C to 105°C ambient), enabling sub-microsecond interrupt response and deterministic loop execution for real-time motor control.

Does the TMS320F28065PFPS include a floating-point unit and hardware math accelerators?

Yes, the TMS320F28065PFPS integrates a native single-precision floating-point unit (FPU) and the Viterbi/Complex Math/CRC Unit (VCU). While it does not include the Programmable Control Law Accelerator (CLA) - present in higher-tier F2806x variants like the F28069 - the FPU enables efficient C/C++ implementation of trigonometric, exponential, and matrix operations essential for FOC and digital power algorithms.

What analog peripherals are integrated into the TMS320F28065PFPS?

The TMS320F28065PFPS integrates a 12-bit, 3.46-MSPS ADC with dual sample-and-hold, supporting up to 16 input channels. It also includes three analog comparators with internal 10-bit DAC references, routable to ePWM trip zones for hardware-fast overcurrent protection - all without external components.

Which communication interfaces are supported by the TMS320F28065PFPS?

The TMS320F28065PFPS supports two SCI/UART modules, two SPI modules, one I²C bus, one McBSP, one eCAN module, and one USB 2.0 interface (full-speed device/host mode). These interfaces enable robust system-level connectivity for motor feedback, sensor networks, firmware updates, and host diagnostics.

What package type and thermal characteristics define the TMS320F28065PFPS?

The TMS320F28065PFPS uses an 80-pin HTQFP PowerPAD™ (PFP) package measuring 12 mm × 12 mm. Its exposed thermal pad must be soldered to the PCB ground plane with thermal vias to achieve specified junction-to-board thermal resistance (θ_JB = 12.5°C/W), ensuring reliable operation at full CPU/peripheral load in industrial environments.