Texas Instruments TMS320F28022PTT

Overview

TMS320F28022PTT from Texas Instruments is a C28x-core 32-bit real-time microcontroller optimized for motor control and digital power applications, operating at 50 MHz (20-ns cycle time), featuring 16 KB on-chip Flash, 3 KB SARAM, 8-channel ePWM with 4 high-resolution outputs, 12-bit ADC (7-channel, 3-MSPS), and integrated comparators with DACs. It targets inverter gate drive and closed-loop servo control in industrial AC drives.

For engineers reviewing the TMS320F28022PTT datasheet, TMS320F28022PTT pinout, TMS320F28022PTT application, or TMS320F28022PTT equivalent, key selection criteria include its 48-pin LQFP package, 50-MHz deterministic CPU timing, HRPWM dual-edge modulation capability, analog integration (ADC + comparators), and code compatibility within the F2802x family for legacy C28x-based firmware reuse.

Technical Context

The TMS320F28022PTT implements a Harvard-architecture C28x CPU with atomic instruction execution and fast interrupt response, enabling sub-microsecond control loop closure. Its peripheral set centers on real-time actuation: ePWM modules support dead-time insertion and trip-zone protection, while the 12-bit ADC provides synchronized sampling across 7 channels with dual sample-and-hold.

On-chip analog functions include two independent comparators with internal 10-bit references, directly routable to PWM outputs for hardware-based protection. The device uses a single 3.3-V supply with integrated voltage regulation and supports both crystal (X1/X2) and external clock (XCLKIN) inputs, with missing-clock detection and watchdog timer for system robustness.

Key Specifications

Pinout & Package

Package: 48-pin Low-Profile Quad Flatpack (LQFP), body size 7.0 mm × 7.0 mm, lead pitch 0.5 mm, exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28022PTT, the TMS320F28023PTT offers double Flash capacity for complex motion profiles, while the TMS320F28026PTT delivers 20% higher CPU throughput for tighter timing margins-both retain full pin and code compatibility, enabling drop-in upgrades in existing LQFP-48 layouts.

Availability

TMS320F28022PTT is available at Aetrix Electronics and suitable for industrial motor drives, solar microinverters, and AC drive power stage modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp-up.

Supply support for TMS320F28022PTT 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 company delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.

The TMS320F2802x family belongs to TI's C2000™ real-time microcontroller portfolio, designed specifically for deterministic closed-loop control in power electronics, motor drives, and digital power conversion systems.

FAQ

What is the maximum operating frequency of the TMS320F28022PTT?

The TMS320F28022PTT operates at a maximum CPU frequency of 50 MHz, corresponding to a 20-ns instruction cycle time. This frequency is fixed for the TMS320F28022 variant and is supported by the on-chip PLL and internal voltage regulator. The device does not support overclocking beyond this rated speed, and all timing specifications-including ADC conversion, ePWM resolution, and interrupt latency-are validated at 50 MHz.

Does the TMS320F28022PTT include an integrated temperature sensor?

Yes, the TMS320F28022PTT includes an on-chip temperature sensor accessible via ADC channel ADCINA6. The sensor output is ratiometric to VREFHI/VREFLO and calibrated for operation across the full –40°C to +105°C industrial temperature range. It is commonly used for real-time thermal monitoring of power stages in motor drives and inverters without requiring external sensing components.

How many high-resolution PWM (HRPWM) outputs does the TMS320F28022PTT support?

The TMS320F28022PTT supports four high-resolution PWM outputs: ePWM1A, ePWM2A, ePWM3A, and ePWM4A. Each HRPWM channel provides sub-150-ps duty-cycle resolution and dual-edge control capability, enabling precise gate timing for SiC and GaN power devices. These outputs are implemented within the standard ePWM modules and require no additional peripherals or external circuitry.

Is the TMS320F28022PTT pin-compatible with other F2802x family members in the 48-pin LQFP package?

Yes, the TMS320F28022PTT is pin-compatible with all other F2802x variants offered in the 48-pin PT LQFP package-including TMS320F28023PTT, TMS320F28026PTT, and TMS320F28027PTT. Signal assignments, power pin locations, and peripheral multiplexing are identical across these parts, allowing hardware design reuse and firmware migration within the family.

What debug interfaces are supported by the TMS320F28022PTT?

The TMS320F28022PTT supports IEEE 1149.1 JTAG debugging via dedicated TRST, TCK, TMS, TDI, and TDO pins (multiplexed with GPIO36–GPIO38 and GPIO2). It also enables real-time emulation features including hardware breakpoints, watchpoints, and live memory/register inspection through compatible TI XDS100v3 or XDS200 debug probes. No external debug adapter is required beyond standard JTAG cabling.