Texas Instruments TMS320F28022DAQR

Overview

TMS320F28022DAQR from Texas Instruments is a 32-bit C28x-core microcontroller optimized for real-time 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 PWM outputs, 12-bit ADC (3 MSPS, 7 channels), and integrated comparators with DACs. It targets compact inverter power stages and BLDC motor drives.

For engineers reviewing the TMS320F28022DAQR datasheet, TMS320F28022DAQR pinout, TMS320F28022DAQR application, or TMS320F28022DAQR equivalent, this page delivers verified functional specifications, validated package mapping to 38-pin TSSOP, confirmed peripheral integration (ePWM/HRPWM/ADC/SCI/SPI/I²C), and direct alternative part comparisons for industrial embedded design.

Technical Context

The TMS320F28022DAQR implements a Harvard-architecture C28x CPU with atomic operations and fast interrupt response, supporting deterministic real-time control loops. Its clock system includes dual zero-pin oscillators, on-chip crystal oscillator support, and missing-clock detection - enabling robust timing without external crystals in cost-sensitive designs.

Peripheral integration centers on closed-loop actuation: ePWM modules provide independent 16-bit timers and dual-edge HRPWM modulation; the 12-bit ADC supports ratio-metric VREFHI/VREFLO references and low-latency sampling; analog comparators route directly to PWM trip zones (TZ1–TZ3) for hardware fault protection.

Key Specifications

Pinout & Package

38-pin Thin Shrink Small-Outline Package (TSSOP), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm, RoHS-compliant, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28022DAQR, TMS320F28023DA offers expanded memory for advanced control law storage, while TMS320F28026DA provides higher CPU throughput and embedded InstaSPIN-FOC™ for simplified motor startup - both retain identical 38-pin TSSOP footprint and core peripheral set.

Availability

TMS320F28022DAQR is available at Aetrix Electronics and suitable for air conditioner outdoor units, micro inverters, and AC-input BLDC motor drives requiring stable component supply, long-term industrial lifecycle support, and automotive-grade reliability validation.

Supply support for TMS320F28022DAQR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.

The TMS320F2802x family belongs to TI's C2000™ real-time control MCU portfolio, designed specifically for high-precision closed-loop systems including motor drives, digital power supplies, and renewable energy inverters.

FAQ

What is the maximum operating frequency of the TMS320F28022DAQR?

The TMS320F28022DAQR operates at a maximum CPU frequency of 50 MHz, corresponding to a 20-ns instruction cycle time. This speed is factory-configured and supported across its full temperature range (–40°C to 105°C). The device uses an internal PLL to derive SYSCLK from either the on-chip oscillator or external clock sources, and all peripherals-including ePWM, ADC, and communication modules-are fully functional at this rate. TMS320F28022DAQR does not support overclocking beyond 50 MHz.

Does the TMS320F28022DAQR include hardware-based security features?

Yes, the TMS320F28022DAQR integrates a dedicated code-security module with 128-bit encryption key storage and lock functionality. This protects on-chip Flash, SARAM, and OTP memory blocks from unauthorized read-out or firmware reverse engineering. Security activation is controlled via dedicated registers and requires a valid key write sequence; once locked, memory contents cannot be accessed via JTAG or boot ROM interfaces. TMS320F28022DAQR supports secure boot and firmware authentication workflows in industrial and automotive deployments.

How many PWM outputs does the TMS320F28022DAQR support, and what is their resolution?

The TMS320F28022DAQR supports 8 ePWM outputs (ePWM1A/B through ePWM4A/B) and 4 high-resolution PWM (HRPWM) outputs (ePWM1A/2A/3A/4A). Standard ePWM channels offer 16-bit resolution with independent time-base and compare registers; HRPWM extends edge placement resolution to <150 ps using digital-to-analog modulation of the PWM counter. All ePWM modules include trip-zone (TZ) inputs for hardware fault shutdown, and TMS320F28022DAQR maintains full HRPWM functionality in its 38-pin TSSOP package.

Is the TMS320F28022DAQR pin-compatible with other F2802x family members in the same package?

Yes, the TMS320F28022DAQR is pin-compatible with all 38-pin DA TSSOP variants in the F2802x family, including TMS320F28021DA, TMS320F28023DA, and TMS320F28026DA. Pin assignments for power, reset, JTAG, ADC, ePWM, and communication peripherals are identical across these devices. Firmware portability is further ensured by C28x core code compatibility and consistent peripheral register maps. TMS320F28022DAQR can be substituted in existing PCB layouts without hardware modification, provided memory and peripheral requirements align.

What analog peripherals are integrated into the TMS320F28022DAQR?

The TMS320F28022DAQR integrates a 12-bit, 3-MSPS analog-to-digital converter (ADC) with 7 input channels (Group A), dual sample-and-hold, and ratio-metric reference support (VREFHI/VREFLO); two analog comparators (COMP1/COMP2) with internal 10-bit DAC references and direct trip-zone outputs; and an on-chip temperature sensor. All analog functions share the same 3.3-V supply domain (VDDA) and are calibrated at factory. TMS320F28022DAQR does not include DACs or PGA circuitry - those features appear only in later F2805x/F2807x families.