The TMS320F28035PNTR is a 32-bit microcontroller (MCU) belonging to Texas Instruments (TI)'s C2000™ Piccolo family, specifically designed for real-time control scenarios such as industrial control, motor drives, and digital power supplies. Below is a detailed description of its core features and applications:

Core Architecture and Performance

1. C28x Core and Control Law Accelerator (CLA)

Equipped with a 32-bit C28x DSP core running at a 60 MHz clock frequency, it delivers 120 MIPS of processing power. It supports 16×16 and 32×32 multiply-accumulate (MAC) operations, enabling efficient handling of complex control algorithms.

Independent CLA module: A 32-bit floating-point math accelerator that supports parallel code execution (e.g., current loop calculations). It reduces the load on the main CPU and improves real-time response speed.

Single-cycle instruction execution: Minimizes latency, making it suitable for high-frequency PWM modulation (e.g., motor control at 20 kHz or higher).

2. On-Chip Resources and Memory

128 KB Flash memory + 20 KB SRAM: Supports code 固化 (firmware storage) and high-speed data caching, meeting the requirements of medium-scale control algorithms.

Code Security Module: Features 128-bit security key protection to prevent firmware reverse engineering, ideal for scenarios sensitive to intellectual property.

High-Precision Analog and Control Peripherals

1. 12-Bit ADC and Analog Front-End

16-channel ADC: Boasts a conversion time of 80 ns (12.5 MSPS) and supports simultaneous sampling of 2 channels, suitable for synchronous acquisition of three-phase current/voltage.

Ratiometric measurement reference voltage: Supports VREFHI/VREFFLO differential input to suppress interference from power supply fluctuations and improve measurement accuracy.

Integrated temperature sensor: Monitors the chip temperature in real time for overheating protection or compensation algorithms.

2. Enhanced PWM and Motor Control Peripherals

8 enhanced PWM (ePWM) channels: Supports dead-time insertion, fast fault response (Trip Zone Controller, TZC), and high-frequency modulation (e.g., 200 kHz or higher). It is compatible with drive requirements for Permanent Magnet Synchronous Motors (PMSMs) and Brushless DC Motors (BLDCs).

High-Resolution PWM (HRPWM): Offers 150 ps resolution, enabling fine duty cycle adjustment to optimize motor torque smoothness.

Enhanced Quadrature Encoder Pulse (eQEP) interface: Directly connects to incremental encoders for closed-loop control of motor position/speed.

Communication and Expandability

1. Multi-Protocol Interfaces

CAN, LIN, SPI, I²C, UART: Supports industrial buses (e.g., CANopen), sensor networks (e.g., I²C temperature sensors), and host communication (e.g., UART debugging).

Configurable GPIOs: 45 multi-functional pins with support for input filtering and interrupt triggering, enabling flexible adaptation to various peripherals.

2. Low Power Consumption and Reliability

Single 3.3V power supply: The internal voltage regulator supports a wide input range (1.71V to 3.63V), adapting to power supply fluctuations in industrial environments.

Wide operating temperature range: -40°C to 125°C (for PAGQ models), meeting automotive and industrial-grade requirements.

Watchdog Timer (WDT) and power supply monitoring: Prevents program crashes and ensures system stability.

Package and Application Fields

1. Package and Layout

80-pin LQFP package (PNTR suffix): Features a 12×12 mm form factor with a 0.5 mm pin pitch, supporting surface-mount technology (SMT) for high-density PCB designs.

Tape-and-reel packaging (TR): Compatible with automated placement production, reducing assembly costs.

2. Typical Applications

Industrial motor drives: Vector control and Direct Torque Control (DTC) for servo motors, fans, and pumps.

Digital power supplies and renewable energy: Maximum Power Point Tracking (MPPT) and DC/AC conversion for solar inverters and energy storage systems.

Automotive electronics: Control of in-vehicle air conditioning compressors and auxiliary control for Battery Management Systems (BMS) (requires AEC-Q100 qualified models).

Industrial automation: Real-time data processing and I/O control for PLC modules and motion controllers.