Texas Instruments TMS320F28054PNQ

Overview

TMS320F28054PNQ from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 12-bit 3.75-MSPS ADC, 14 ePWM channels, and dual-zone security-designed for automotive-grade motor control in air conditioner outdoor units and BLDC drives.

For engineers reviewing the TMS320F28054PNQ datasheet, TMS320F28054PNQ pinout, TMS320F28054PNQ application, or TMS320F28054PNQ equivalent, key selection criteria include AEC Q100 qualification (–40°C to 125°C), on-chip PGAs and comparators for analog loop closure, and 80-pin LQFP package compatibility with F2805x family layout reuse.

Technical Context

The TMS320F28054PNQ implements a Harvard-architecture C28x CPU with atomic instruction execution and unified memory mapping, enabling deterministic real-time interrupt response within 6 CPU cycles. Its programmable control law accelerator (CLA) operates independently at 60 MHz to offload PWM timing, ADC post-processing, and PID loop computation from the main CPU.

On-chip analog integration includes seven comparators with three internal DACs, four PGAs (gain ≈ 3/6/11), and dual-sample-and-hold ADC supporting ratio-metric VREFHI/VREFLO references-enabling direct comparator-to-PWM trip zone generation without external components.

Key Specifications

Pinout & Package

80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch, RoHS-compliant, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28054M and TMS320F28055PN, the TMS320F28054PNQ provides AEC Q100 qualification and full memory access without pre-secured zones-making it the preferred choice for new automotive-qualified motor control designs requiring long-term maintainability and debug flexibility.

Availability

TMS320F28054PNQ is available at Aetrix Electronics and suitable for AC drive control modules, inverter & motor control systems, and air conditioner outdoor units requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.

Supply support for TMS320F28054PNQ 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, with leadership in real-time control, power management, and signal chain technologies.

The TMS320F2805x product line delivers entry-performance C2000™ real-time MCUs optimized for cost-sensitive motor control and digital power applications-featuring integrated analog peripherals, single-supply operation, and AEC Q100 qualification for automotive use.

FAQ

What is the maximum operating frequency of the TMS320F28054PNQ?

The TMS320F28054PNQ operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is sustained across its full qualified temperature range of –40°C to 125°C. The device achieves this performance using a highly optimized C28x core with Harvard bus architecture and zero-wait-state flash execution. All timing specifications-including ADC conversion, ePWM resolution, and CLA operation-are validated at this frequency in the official SPRS797F datasheet.

Does the TMS320F28054PNQ include a programmable control law accelerator (CLA)?

No, the TMS320F28054PNQ does not include a CLA. According to the Device Comparison table in SPRS797F, CLA is present only in the TMS320F28055 variant. The TMS320F28054PNQ retains the full C28x CPU and peripheral set-including 14 ePWM channels, 32-bit timers, and analog front-end blocks-but omits the independent floating-point accelerator. This makes the TMS320F28054PNQ suitable for applications where CPU-based control loops meet timing requirements without hardware offload.

What analog peripherals are integrated into the TMS320F28054PNQ?

The TMS320F28054PNQ integrates a comprehensive analog front end: a 12-bit 3.75-MSPS ADC with 16 channels and dual sample-and-hold, seven comparators (three with internal DACs), four programmable gain amplifiers (PGAs) with gains ≈3/6/11, one buffered reference DAC, and four digital filters. These peripherals are designed for direct connection to motor current sensors, voltage dividers, and temperature monitors-enabling fully integrated closed-loop control without external signal conditioning ICs.

Is the TMS320F28054PNQ qualified for automotive applications?

Yes, the TMS320F28054PNQ is AEC Q100 Grade 1 qualified for automotive applications, with an operating temperature range of –40°C to 125°C. The "Q" suffix explicitly denotes this qualification, covering stress testing for reliability, ESD immunity, and transient robustness per automotive standards. It is intended for use in powertrain-adjacent and chassis systems such as electric power steering assist, HVAC compressor control, and body electronics motor drives.

What package type and pin count does the TMS320F28054PNQ use?

The TMS320F28054PNQ uses an 80-pin Low-Profile Quad Flatpack (LQFP) package with a 12.0 mm × 12.0 mm body size and 0.5-mm pitch. This package is mechanically and functionally compatible with other TMS320F2805x variants (e.g., TMS320F28055PN, TMS320F28053PN), enabling PCB layout reuse across the family. Pin assignments-including GPIO multiplexing, ADC inputs, and JTAG signals-are documented in Section 6.1 of the SPRS797F datasheet.