TMS320F28335PGFA

on April 1, 2025

TMS320F28335PGFA: An “all-round player” in the field of high-performance real-time control

In the wave of industrial automation, power electronics and new energy technologies, TI’s C2000 series microcontrollers have always been known for their powerful real-time control capabilities and high reliability. Among them, TMS320F28335PGFA, as the star model of the series, has become an “all-round player” in the fields of motor control, digital power supply, robot control, etc. This article will deeply analyze its technical highlights, typical applications and development advantages.

Core performance: “speed and passion” of 32-bit floating-point operations

TMS320F28335PGFA is based on TI’s C28x 32-bit floating-point core, with a main frequency of up to 150MHz, and can perform 32-bit × 32-bit floating-point operations in a single cycle. Compared with traditional fixed-point processors, its computing efficiency is improved by 4-6 times.

This feature makes it particularly outstanding in complex algorithms (such as PID control and Fourier transform), and is particularly suitable for the following scenarios:

Motor control: Supports FOC (field-oriented control) and SVPWM (space vector pulse width modulation) algorithms to achieve high-precision speed and torque control.
Digital power supply: Optimizes the dynamic response and efficiency of the switching power supply through real-time sampling and compensation algorithms.
Robot motion control: Multi-axis interpolation operations and sensor fusion algorithms are processed in parallel to improve motion smoothness.

Peripheral configuration: highly integrated “full stack solution”

Peripheral module	Key parameters	Application scenarios
ADC module	12-bit accuracy, 16 channels, 80ns conversion time	Motor current/voltage sampling, power supply feedback
PWM module	18-channel ePWM, support HRPWM (high-resolution mode)	Inverter drive, motor vector control
Communication interface	2-channel CAN 2.0B, 3-channel SCI, 1-channel SPI, 1-channel I2C	Industrial network interconnection, sensor data interaction
Timer and capture unit	6 32-bit timers, support orthogonal encoding input	Motor speed measurement, position feedbac

Highlights

eQEP module: supports orthogonal encoder and resolver interface to achieve high-precision position closed-loop control.
CLA coprocessor: a 32-bit processor independent of the main CPU that can share real-time tasks (such as fault protection) and improve system reliability.

Typical applications: comprehensive coverage from industry to new energy

***Motor controller: integrated SVPWM algorithm and overcurrent protection, supports efficient drive of permanent magnet synchronous motors.
***On-board charger: achieves wide-range soft switching through digital control, with an efficiency of more than 98%.
***Servo drive: 200μs current loop response, support multi-axis synchronous control.
***Solar inverter: Real-time MPPT (maximum power point tracking) algorithm to improve energy conversion efficiency.
***Robot and drone controller: Combine IMU data to achieve attitude solution and dynamic compensation.
***ESC electric adjustment: Support brushless motor sine wave drive to reduce electromagnetic interference.