Texas Instruments TMS320F28026DAT

Overview

TMS320F28026DAT 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 channels, 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 TMS320F28026DAT datasheet, TMS320F28026DAT pinout, TMS320F28026DAT application, or TMS320F28026DAT equivalent, key selection considerations include its 38-pin TSSOP package, single 3.3-V supply operation, HRPWM dual-edge modulation capability, analog integration (ADC + comparators), and code compatibility with the broader F2802x family.

Technical Context

The TMS320F28026DAT implements a Harvard architecture C28x CPU with atomic instructions and fast interrupt response, supporting deterministic real-time control loops. Its peripheral set includes three 32-bit CPU timers, PIE-integrated interrupt handling, and dedicated ePWM modules with independent 16-bit timers and HRPWM logic for precise gate timing.

On-chip analog resources include a 12-bit ADC with 7 input channels, dual analog comparators with internal 10-bit references, and an on-chip temperature sensor-all routed to PWM trip zones for hardware-protected overcurrent/overtemperature shutdown. Clocking relies on dual zero-pin oscillators or external crystal/XCLKIN, with missing-clock detection and watchdog timer support.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28027DAT and TMS320F28026PT, the TMS320F28026DAT provides optimal balance of footprint, analog integration, and cost for space-constrained inverter modules-offering full HRPWM and comparator functionality without extra Flash or pins.

Availability

TMS320F28026DAT is available at Aetrix Electronics and suitable for 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 TMS320F28026DAT 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 specializing in analog and embedded processing technologies, with leadership in real-time control, power management, and signal chain solutions.

The TMS320F28026DAT belongs to TI's C2000™ Entry Performance MCU line, designed specifically for cost-sensitive, high-efficiency real-time control in motor drives, digital power, and renewable energy systems.

FAQ

What is the maximum operating frequency of the TMS320F28026DAT?

The TMS320F28026DAT operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is supported across its full industrial temperature range (–40°C to 105°C) and enables high-bandwidth current-loop control in motor drive applications. The TMS320F28026DAT achieves this performance using its optimized C28x core with Harvard architecture and zero-wait-state memory access.

Does the TMS320F28026DAT support hardware-based fault protection?

Yes, the TMS320F28026DAT supports hardware-based fault protection through its integrated analog comparators and ePWM trip-zone logic. Each comparator output (COMP1OUT/COMP2OUT) can be directly connected to ePWM module trip inputs, enabling sub-100-ns response to overcurrent conditions without CPU intervention. This feature is fully implemented in the TMS320F28026DAT and requires no additional external components.

What analog peripherals are integrated into the TMS320F28026DAT?

The TMS320F28026DAT integrates a 12-bit, 3-MSPS analog-to-digital converter with 7 input channels (ADCINA0–ADCINA6), two analog comparators with internal 10-bit DAC references, and an on-chip temperature sensor. All analog resources are accessible in the 38-pin DA package and are calibrated for use across the device's rated temperature range. These peripherals are confirmed for the TMS320F28026DAT in TI's SPRS523P datasheet.

Is the TMS320F28026DAT pin-compatible with other F2802x devices in the same package?

Yes, the TMS320F28026DAT is pin-compatible with other 38-pin DA TSSOP variants in the F2802x family-including TMS320F28027DAT, TMS320F28023DAT, and TMS320F28022DAT-as confirmed by TI's Device Comparison table and Pin Diagram documentation. Signal assignments, power pins, and peripheral mappings match across these DA-package devices, enabling drop-in replacement where memory or peripheral requirements align.

What development tools are supported for the TMS320F28026DAT?

The TMS320F28026DAT is supported by TI's C2000Ware software suite, Code Generation Tools (C2000 C/C++ Compiler), and CCS IDE. Hardware debugging uses standard JTAG via the TRST/TCK/TMS/TDI/TDO pins (GPIO36–38, GPIO19, GPIO37). TI's LAUNCHXL-F28027 board provides compatible debug and evaluation infrastructure, and the TMS320F28026DAT shares full code compatibility with the F2802x family, allowing reuse of existing motor control libraries.