Texas Instruments TMS320F28026DAQ

Overview

TMS320F28026DAQ from Texas Instruments is a 32-bit C28x-core microcontroller optimized for real-time motor control and digital power applications, operating at 60 MHz (16.67-ns cycle time), featuring 16 KB on-chip Flash, 6 KB SARAM, 8-channel ePWM with 4 high-resolution outputs, 12-bit ADC (3 MSPS, 7 channels), and integrated comparators with DACs. It serves as the central control unit in compact inverter power stages.

For engineers reviewing the TMS320F28026DAQ datasheet, TMS320F28026DAQ pinout, TMS320F28026DAQ application, or TMS320F28026DAQ equivalent, this page delivers verified functional specifications, validated 38-pin TSSOP package mapping, confirmed peripheral integration (SCI/UART, SPI, I²C), and direct alternative part comparisons for industrial motor drive BOM optimization.

Technical Context

The TMS320F28026DAQ implements a Harvard bus architecture with atomic instruction execution and unified memory programming, enabling deterministic real-time loop execution. Its CPU supports 16×16 and 32×32 MAC operations plus dual 16×16 MAC for fast control law computation.

Clocking relies on dual internal zero-pin oscillators or external crystal/XCLKIN input, with integrated POR/BOR and missing-clock detection. The device uses a single 3.3-V supply with on-chip voltage regulation and no power sequencing requirement-critical for cost-sensitive, space-constrained power electronics designs.

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, RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28027DAQ and TMS320F28026PT, the TMS320F28026DAQ delivers the lowest-cost entry point into the F2802x family while retaining full 60-MHz performance, HRPWM, and essential peripherals-making it ideal for volume production of space-constrained, cost-sensitive motor drives.

Availability

TMS320F28026DAQ 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 lifecycle support, and automotive-grade qualification (AEC-Q100 Class 0).

Supply support for TMS320F28026DAQ 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 specializing in analog, embedded processing, and connectivity technologies, with over 50 years of innovation in power management and real-time control ICs.

The TMS320F28026DAQ belongs to TI's C2000™ real-time microcontroller product line, engineered specifically for closed-loop control in motor drives, digital power supplies, and renewable energy systems-emphasizing deterministic timing, analog integration, and code compatibility across generations.

FAQ

What is the maximum operating frequency of the TMS320F28026DAQ?

The TMS320F28026DAQ operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is achieved using the internal PLL with either the on-chip zero-pin oscillator or an external crystal/XCLKIN source. All timing-critical peripherals-including ePWM, ADC, and HRPWM-are fully synchronized to this clock domain, ensuring deterministic real-time behavior in motor control loops.

Does the TMS320F28026DAQ support high-resolution PWM (HRPWM)?

Yes, the TMS320F28026DAQ supports high-resolution PWM on four ePWM channels (ePWM1A, ePWM2A, ePWM3A, and ePWM4A). Each HRPWM output achieves <50-ps duty-cycle resolution through digital dithering of the TBPHS register, enabling precise dead-time control and reduced acoustic noise in inverter applications. This feature is enabled independently per channel and does not require external components.

How many ADC channels does the TMS320F28026DAQ have, and what is their configuration?

The TMS320F28026DAQ includes a 12-bit ADC with 7 single-ended input channels (ADCINA0–ADCINA6), all belonging to Group A. Group B inputs (ADCINB0–ADCINB7) are not implemented in the 38-pin DA package. The ADC supports ratio-metric referencing using VREFHI/VREFLO, has a 3-MSPS sampling rate, and completes conversions in 216.67 ns-enabling synchronized sampling across multiple current/voltage sensors in motor control systems.

Is the TMS320F28026DAQ pin-compatible with other F2802x devices in the same package?

Yes, the TMS320F28026DAQ is pin-compatible with other 38-pin DA variants in the F2802x family-including TMS320F28027DAQ, TMS320F28023DAQ, and TMS320F28022DAQ. All share identical pin assignments, electrical characteristics, and package dimensions. Firmware developed for one can be reused across others with only minor configuration changes (e.g., Flash size, peripheral enable bits), simplifying platform scalability.

What development tools are supported for the TMS320F28026DAQ?

The TMS320F28026DAQ is fully supported by Texas Instruments' C2000Ware software suite, Code Generation Tools (C2000 C/C++ Compiler), and CCS IDE. Hardware tools include the TMDSEMU200-U XDS200 JTAG emulator and LAUNCHXL-F28027 development kit (which shares compatible pinout and peripheral initialization). TI also provides motor control SDKs with FOC and InstaSPIN-FOC™ libraries validated for this device.