Texas Instruments TMS320F28022DAQ

Overview

TMS320F28022DAQ 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 high-resolution capability, 12-bit ADC (7-channel, 3 MSPS), and integrated comparators with DACs. It targets inverter gate drive and closed-loop AC/DC conversion systems.

For engineers reviewing the TMS320F28022DAQ datasheet, TMS320F28022DAQ pinout, TMS320F28022DAQ application, or TMS320F28022DAQ equivalent, key selection criteria include its 38-pin TSSOP package, 50-MHz deterministic C28x CPU, dual comparator outputs routed to PWM, single 3.3-V supply operation, and support for industrial temperature range (–40°C to 105°C).

Technical Context

The TMS320F28022DAQ implements a Harvard-architecture C28x CPU with atomic instructions and fast interrupt response, enabling sub-microsecond control loop execution. Its peripheral set includes three 32-bit CPU timers, PIE-integrated interrupt handling, and ePWM modules with independent 16-bit timers plus HRPWM edge modulation for precise timing control.

On-chip analog integration comprises a 12-bit ADC with 7 input channels, dual analog comparators with internal 10-bit references, and AIO pins supporting both analog sensing and digital I/O. The device uses an internal voltage regulator for single-rail 3.3-V operation and supports boot from flash or ROM with code-security module protection.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28022DAQ, the F28023DA offers expanded memory and ADC channel count for feature-rich implementations, while the F28026DA delivers higher CPU throughput and embedded motor control acceleration - both retain identical packaging and core peripheral compatibility for board-level reuse.

Availability

TMS320F28022DAQ is available at Aetrix Electronics and suitable for inverter & motor control, air conditioner outdoor units, micro inverters, and AC-input BLDC motor drives requiring stable component supply and long-term industrial lifecycle support.

Supply support for TMS320F28022DAQ 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 and embedded processing solutions for industrial, automotive, and communications markets.

The TMS320F28022DAQ belongs to TI's C2000™ real-time microcontroller product line, designed specifically for deterministic closed-loop control in power electronics, motor drives, and renewable energy systems.

FAQ

What is the maximum operating frequency of the TMS320F28022DAQ?

The TMS320F28022DAQ 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 the full industrial 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 the TMS320F28022DAQ does not support overclocking beyond this rated specification.

Does the TMS320F28022DAQ include hardware-based security features?

Yes, the TMS320F28022DAQ integrates a dedicated code-security module with 128-bit encryption key storage and lock mechanism. This prevents unauthorized read access to on-chip flash, SARAM, and OTP memory blocks, and thwarts firmware reverse engineering. Security is enforced at boot and runtime - the TMS320F28022DAQ will not execute code from protected memory unless the correct key is loaded and verified.

How many PWM channels does the TMS320F28022DAQ support, and what resolution is available?

The TMS320F28022DAQ supports eight enhanced PWM (ePWM) channels, each with an independent 16-bit timer. Four of these channels (ePWM1A/2A/3A/4A) also support high-resolution PWM (HRPWM) mode, delivering <150-ps effective resolution for fine-grained frequency and duty-cycle modulation. This capability is critical for soft-switching topologies in TMS320F28022DAQ-based digital power designs.

Can the TMS320F28022DAQ operate from a single 3.3-V supply?

Yes, the TMS320F28022DAQ is designed for single 3.3-V supply operation with no power sequencing requirement. An integrated voltage regulator generates the internal 1.8-V core voltage, allowing direct connection of VDD and VDDIO to the same 3.3-V rail. This simplifies power design and reduces external component count compared to multi-rail MCUs - a key advantage in space-constrained TMS320F28022DAQ applications.

What analog peripherals are integrated into the TMS320F28022DAQ?

The TMS320F28022DAQ integrates a 12-bit, 7-channel ADC with 3 MSPS sampling rate and dual analog comparators with internal 10-bit DAC references. All six AIO pins support analog input functions, and comparator outputs can be directly routed to ePWM trip-zone logic for hardware-fast overcurrent protection. These analog resources eliminate external signal-conditioning components in TMS320F28022DAQ-based motor and power control systems.