Texas Instruments TMS320F28069FPFPQ

Overview

TMS320F28069FPFPQ from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and VCU, designed for closed-loop motor control and digital power conversion. It delivers 11.11-ns instruction cycle time, 128KB flash, 50KB RAM, 16-channel ePWM (8 HRPWM-capable), 12-bit 3.46-MSPS ADC, and eCAN/USB/SCI/SPI/I²C interfaces - deployed in EV charging stations and solar inverters.

For engineers reviewing the TMS320F28069FPFPQ datasheet, TMS320F28069FPFPQ pinout, TMS320F28069FPFPQ application, or TMS320F28069FPFPQ equivalent, key selection criteria include its AEC Q100-qualified automotive temperature range (–40°C to 125°C), 80-pin HTQFP PowerPAD™ package, dual-edge HRPWM capability, on-chip analog comparators with DACs, and CLA-accelerated floating-point control law execution.

Technical Context

The TMS320F28069FPFPQ implements a Harvard architecture C28x CPU with atomic instructions and unified memory mapping, enabling deterministic real-time response. Its CLA executes independent 32-bit floating-point math tasks - such as field-oriented control (FOC) loops - while the main CPU handles system management and communication.

Peripheral integration includes an 8-module ePWM subsystem supporting dual-edge modulation, three eCAP modules for precise timing capture, four HRCAP modules for ultra-fine edge detection, and a 12-bit dual-sample-and-hold ADC with ratio-metric reference support and DMA-accessible result registers - all synchronized via the PIE interrupt controller and shared peripheral buses.

Key Specifications

Pinout & Package

Package: 80-pin HTQFP PowerPAD™ (PFP), 12.0 mm × 12.0 mm body, exposed thermal pad requiring PCB ground connection via thermal vias. Pin count and layout match TI's standard PFP footprint for drop-in compatibility across F2806x family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28069FPFPQ, the TMS320F280049C offers generational improvements in analog precision and logic flexibility, while the TMS320F28379D provides scalable dual-core architecture for demanding multi-task workloads - both retain C28x software compatibility but require PCB redesign due to different packages and pinouts.

Availability

TMS320F28069FPFPQ is available at Aetrix Electronics and suitable for EV charging station power modules, solar string inverters, and industrial servo drive control requiring stable component supply across automotive-qualified lifecycle requirements.

Supply support for TMS320F28069FPFPQ 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 with decades of automotive and industrial MCU expertise.

The TMS320F2806x product line delivers optimized real-time control for motor drives and digital power conversion - combining C28x performance, analog integration, and AEC Q100 qualification in low-pin-count packages.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28069FPFPQ?

The TMS320F28069FPFPQ operates at a maximum CPU frequency of 90 MHz, delivering an instruction cycle time of 11.11 ns. This timing is guaranteed across its full AEC Q100 temperature range (–40°C to 125°C) and 3.3-V supply, enabling deterministic execution of time-critical control loops in motor and power applications.

Does the TMS320F28069FPFPQ include hardware security features for firmware protection?

Yes, the TMS320F28069FPFPQ integrates a Code Security Module (CSM) with 128-bit password protection, lockable flash/SARAM/OTP memory blocks, and one-time programmable (OTP) ROM. These features prevent unauthorized read-out and reverse-engineering of firmware - critical for protecting proprietary motor control algorithms in automotive and industrial deployments.

How many high-resolution PWM channels does the TMS320F28069FPFPQ support, and what is their resolution capability?

The TMS320F28069FPFPQ supports 8 high-resolution PWM (HRPWM) channels within its 16 total ePWM outputs. Each HRPWM channel achieves sub-nanosecond duty-cycle resolution via dual-edge modulation - enabling precise gate timing for wide-bandgap (GaN/SiC) power stages operating above 500 kHz.

Is the TMS320F28069FPFPQ pin-compatible with other devices in the F2806x family?

The TMS320F28069FPFPQ shares the same 80-pin PFP HTQFP PowerPAD™ footprint with TMS320F28069PFP and TMS320F28069M-PFP variants. However, functional differences exist - e.g., TMS320F28069M includes InstaSPIN-MOTION firmware, while TMS320F28069FPFPQ omits CLA and VCU. Pinout compatibility does not imply drop-in replacement without firmware and peripheral configuration review.

What analog peripherals are integrated into the TMS320F28069FPFPQ for sensor interfacing and protection?

The TMS320F28069FPFPQ integrates a 12-bit, 3.46-MSPS ADC with 16 channels and dual sample-and-hold; 3 analog comparators with internal 10-bit DAC references; and an on-chip temperature sensor. These enable direct interfacing with current shunts, voltage dividers, and thermal sensors - with comparator outputs routed to ePWM trip zones for hardware-level fault response in <100 ns.