Texas Instruments TMS320F28026DAS

Overview

TMS320F28026DAS from Texas Instruments is a 32-bit C28x-core microcontroller optimized for real-time motor and power control, 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 targets compact inverter and BLDC drive systems requiring deterministic timing and analog integration.

For engineers reviewing the TMS320F28026DAS datasheet, TMS320F28026DAS pinout, TMS320F28026DAS application, or TMS320F28026DAS equivalent, key selection criteria include its 38-pin TSSOP package, 60-MHz CPU performance, HRPWM dual-edge modulation capability, single 3.3-V supply operation, and code compatibility within the F2802x family for migration and reuse.

Technical Context

The TMS320F28026DAS implements a Harvard bus architecture with atomic instruction execution and fast interrupt response, enabling sub-microsecond control loop closure. Its peripheral set includes three 32-bit CPU timers, PIE-integrated interrupt handling, and dedicated hardware blocks for PWM synchronization (EPWMSYNCI/EPWMSYNCO) and analog-to-digital conversion with dual sample-and-hold.

It integrates an on-chip 1.8-V voltage regulator supporting single-rail 3.3-V operation, eliminating external sequencing requirements. The device supports both internal zero-pin oscillators and external crystal (X1/X2) or clock input (XCLKIN), with missing-clock detection and watchdog timer for system-level reliability in industrial environments.

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 TMS320F28027DAS and TMS320F28026PT, the TMS320F28026DAS delivers optimal cost-performance balance for space-constrained single-motor drives, trading Flash capacity for lower unit cost and smaller PCB area while retaining full HRPWM and comparator functionality.

Availability

TMS320F28026DAS 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 temperature resilience.

Supply support for TMS320F28026DAS 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 silicon for industrial and automotive markets.

The TMS320F28026DAS belongs to TI's C2000™ Entry Performance MCU line, designed specifically for cost-sensitive, high-volume motor and digital power applications where deterministic timing, analog integration, and code compatibility are essential.

FAQ

What is the maximum operating frequency of the TMS320F28026DAS?

The TMS320F28026DAS operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This frequency is achieved using the internal PLL with either the on-chip zero-pin oscillator or an external crystal (X1/X2) or clock source (XCLKIN). The device maintains full peripheral functionality-including ePWM, ADC, and communications modules-at this speed, validated across the full –40°C to 125°C temperature range.

Does the TMS320F28026DAS support hardware-based overcurrent protection?

Yes, the TMS320F28026DAS supports hardware-based overcurrent protection through two integrated analog comparators (COMP1 and COMP2), each with programmable 10-bit DAC references. Comparator outputs can be routed directly to ePWM trip-zone (TZ) inputs, disabling PWM outputs within one system clock cycle (<17 ns at 60 MHz) without CPU intervention-critical for IGBT/SiC gate driver safety in motor drives.

What package type and pin count does the TMS320F28026DAS use?

The TMS320F28026DAS uses a 38-pin Thin Shrink Small-Outline Package (TSSOP), designated "DA" in TI documentation, with dimensions of 12.5 mm × 6.2 mm and 0.65-mm lead pitch. This package provides 22 multiplexed GPIO pins, including dedicated ePWM, ADC, UART, SPI, and I²C functions, optimized for compact motor control PCB layouts where space and thermal profile are constrained.

How much on-chip memory does the TMS320F28026DAS include?

The TMS320F28026DAS includes 16 KB of on-chip Flash memory (16-bit words), 6 KB of SARAM (single-cycle access), 1 KB of OTP memory, and an 8 KB Boot ROM. All memory blocks are protected by the Code Security Module with 128-bit encryption. The Flash supports in-application programming (IAP) and sector erase, enabling field firmware updates without external programmers.

Is the TMS320F28026DAS compatible with other F2802x family devices?

Yes, the TMS320F28026DAS is fully code-compatible with all TMS320F2802x devices, including TMS320F28027, TMS320F28023, and their -Q1/-F variants. Pin compatibility is maintained within the same package type (e.g., DA TSSOP), allowing drop-in replacement where Flash size and peripheral count meet design requirements. Peripheral register maps, interrupt vectors, and C28x instruction set are identical across the family.