Texas Instruments TMS320F28026PTQ

Overview

TMS320F28026PTQ from Texas Instruments is a C2000™ 32-bit real-time control microcontroller optimized for motor and power electronics applications. It features a 60-MHz TMS320C28x CPU, 16 KB on-chip flash, 6 KB SARAM, 8 ePWM channels with 4 high-resolution outputs, 12-bit ADC (3 MSPS, 7 channels), and integrated comparators - deployed in industrial AC-DC converters and BLDC motor drives.

For engineers reviewing the TMS320F28026PTQ datasheet, TMS320F28026PTQ pinout, TMS320F28026PTQ application, or TMS320F28026PTQ equivalent, key selection criteria include its AEC Q100-qualified automotive temperature range (–40°C to 125°C), LQFP-48 package, single 3.3-V supply operation, and HRPWM dual-edge modulation capability for precise digital power control.

Technical Context

The TMS320F28026PTQ implements a Harvard-architecture C28x CPU with atomic instructions and fast interrupt response, enabling deterministic real-time loop execution. 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 sub-nanosecond timing resolution.

On-chip analog integration comprises a 12-bit ADC with 3-MSPS sampling rate and fixed 0–3.3-V full-scale range, dual analog comparators with internal 10-bit references, and an on-die voltage regulator supporting single-rail 3.3-V operation - eliminating external sequencing requirements while maintaining signal integrity in noisy power-conversion environments.

Key Specifications

Pinout & Package

Package: Low-Profile Quad Flatpack (LQFP), 48-pin, 7.0 mm × 7.0 mm body size, 0.5-mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28026FPTQ, the TMS320F28026PTQ offers identical timing/performance but requires external FOC firmware integration; compared with TMS320F28027PTQ, it trades flash capacity and ADC channels for lower cost and smaller code footprint in resource-constrained designs.

Availability

TMS320F28026PTQ is available at Aetrix Electronics and suitable for industrial AC-DC converters, automotive power modules, and BLDC motor drives requiring stable component supply and long-term lifecycle assurance.

Supply support for TMS320F28026PTQ 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.

The TMS320F28026PTQ belongs to the C2000™ Entry Performance MCU family, designed specifically for cost-sensitive real-time control tasks in digital power, motor drives, and energy conversion systems.

FAQ

What is the maximum operating frequency of the TMS320F28026PTQ?

The TMS320F28026PTQ operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is achieved using the on-chip PLL with either the internal zero-pin oscillator or an external crystal/resonator connected to X1/X2. The device maintains full functionality across its specified temperature range of –40°C to 125°C.

Does the TMS320F28026PTQ support hardware-based fault protection?

Yes, the TMS320F28026PTQ supports hardware-based fault protection through its ePWM trip-zone (TZ) inputs (TZ1–TZ3), which can be driven directly by comparator outputs (COMP1OUT/COMP2OUT) or external fault signals. When asserted, TZ events immediately force PWM outputs to a safe state within one SYSCLK cycle - enabling sub-microsecond overcurrent or overvoltage shutdown without CPU intervention.

What analog peripherals are integrated into the TMS320F28026PTQ?

The TMS320F28026PTQ integrates a 12-bit, 3-MSPS analog-to-digital converter with 7 input channels (Group A), dual analog comparators (COMP1/COMP2) with internal 10-bit references, an on-die temperature sensor, and dedicated analog supply pins (VDDA/VSSA/VREFHI/VREFLO). These peripherals enable closed-loop current/voltage sensing and hardware-triggered protection in digital power and motor control systems.

Is the TMS320F28026PTQ pin-compatible with other F2802x devices in LQFP-48 packaging?

Yes, the TMS320F28026PTQ shares identical pinout and package dimensions (LQFP-48, 7.0 mm × 7.0 mm) with other F2802x PT variants including TMS320F28027PTQ, TMS320F28023PTQ, and TMS320F28022PTQ. Signal assignments, power/ground locations, and JTAG interface pins are fully aligned - enabling drop-in replacement where memory or peripheral requirements permit.

How does the code security module function on the TMS320F28026PTQ?

The TMS320F28026PTQ code security module uses a 128-bit password stored in OTP memory to lock access to on-chip flash, SARAM, and OTP blocks. Once enabled, unauthorized read or debug access via JTAG is blocked, and firmware reverse engineering is prevented. Security remains active after power cycles and supports secure boot verification to ensure only authenticated code executes.