Texas Instruments TMS320F28033PAGT

Overview

TMS320F28033PAGT from Texas Instruments is a 60MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32KB flash, 10KB SARAM, 14-channel 12-bit ADC (4.6 MSPS), 14 ePWM channels including 6 high-resolution outputs, and dual comparators with DACs - deployed in motor control, solar inverters, and EV charging power modules.

For engineers reviewing the TMS320F28033PAGT datasheet, TMS320F28033PAGT pinout, TMS320F28033PAGT application, or TMS320F28033PAGT equivalent, key selection criteria include CLA-enabled closed-loop timing, HRPWM dual-edge modulation capability, on-chip temperature sensor integration, and TQFP-64 package compatibility with industrial thermal requirements (–40°C to 105°C).

Technical Context

The TMS320F28033PAGT implements a Harvard-architecture C28x CPU with atomic instruction execution and zero-wait-state memory access, enabling deterministic real-time interrupt response within 6-cycle latency. Its CLA operates independently of the main CPU using dedicated 32-bit floating-point math units for parallel control law execution.

Peripheral integration includes ePWM modules with HRPWM capable of sub-nanosecond resolution via frequency modulation, analog comparators routed directly to PWM trip zones, and an ADC with dual sample-and-hold supporting simultaneous sampling across 14 input channels at 4.6 MSPS with 216.67 ns conversion time.

Key Specifications

Pinout & Package

64-pin Thin Quad Flatpack (TQFP), body size 10.0 mm × 10.0 mm, lead pitch 0.5 mm, RoHS-compliant, surface-mount package optimized for thermal dissipation in power-conversion PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28035PAGT, the TMS320F28033PAGT offers balanced performance for mid-tier motor control with CLA support but less flash and fewer peripherals; versus TMS320F28032PAGT, it adds critical CLA acceleration for demanding closed-loop timing without increasing package size or thermal footprint.

Availability

TMS320F28033PAGT is available at Aetrix Electronics and suitable for motor control, solar inverter, and EV charging applications requiring stable component supply, long-term lifecycle support, and industrial-grade temperature operation.

Supply support for TMS320F28033PAGT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The TMS320F28033PAGT belongs to TI's C2000™ real-time control MCU family, designed specifically for high-precision, low-latency closed-loop control in power electronics, motor drives, and renewable energy systems.

FAQ

What is the maximum operating frequency of the TMS320F28033PAGT CPU core?

The TMS320F28033PAGT features a C28x 32-bit CPU core rated at 60 MHz, corresponding to a 16.67 ns instruction cycle time. This frequency is achieved using an internal PLL with external crystal or clock input, and all on-chip peripherals-including ePWM, ADC, and CLA-are fully synchronized to this clock domain without throttling.

Does the TMS320F28033PAGT include a hardware accelerator for control algorithms?

Yes, the TMS320F28033PAGT integrates a dedicated Control Law Accelerator (CLA), a 32-bit floating-point co-processor that executes control code independently of the main C28x CPU. This enables parallel execution of time-critical loops-such as field-oriented control or PID regulators-without CPU intervention, reducing total loop latency by up to 50% compared to CPU-only execution.

How many high-resolution PWM channels does the TMS320F28033PAGT support?

The TMS320F28033PAGT supports six high-resolution PWM (HRPWM) channels, implemented within its 14 total ePWM modules. These HRPWM outputs provide sub-nanosecond duty-cycle resolution through frequency modulation, enabling precise dead-time control and reduced harmonic distortion in SiC/GaN-based power stages.

What analog peripherals are integrated into the TMS320F28033PAGT?

The TMS320F28033PAGT integrates a 12-bit, 4.6 MSPS ADC with 14 input channels and dual sample-and-hold; three analog comparators with internal 10-bit DAC references; an on-chip temperature sensor; and ratio-metric VREFHI/VREFLO reference inputs - all accessible without external components for current/voltage sensing and protection functions.

Is the TMS320F28033PAGT pin-compatible with other devices in the F2803x family?

Yes, the TMS320F28033PAGT shares identical pinout and package (64-pin TQFP) with other PAG-suffixed F2803x variants including TMS320F28030PAGT, TMS320F28031PAGT, TMS320F28032PAGT, TMS320F28034PAGT, and TMS320F28035PAGT - enabling hardware reuse across performance tiers while maintaining software compatibility within the C2000 ecosystem.