Texas Instruments TMS320F28034PAGQR

Overview

TMS320F28034PAGQR from Texas Instruments is a 64-pin TQFP C2000™ real-time microcontroller featuring a 60MHz C28x CPU, programmable Control Law Accelerator (CLA), 32KB on-chip Flash, 10KB SARAM, 12-bit 4.6 MSPS ADC with 16 channels, and integrated ePWM (12 channels), eCAP (1), eQEP (1), eCAN, I²C, SPI (2), SCI, and LIN peripherals. It targets motor control and digital power applications requiring deterministic low-latency execution.

For engineers reviewing the TMS320F28034PAGQR datasheet, TMS320F28034PAGQR pinout, TMS320F28034PAGQR application, or TMS320F28034PAGQR equivalent, key selection factors include CLA offload capability, high-resolution PWM timing precision, analog integration (ADC + comparators + temperature sensor), automotive-grade AEC-Q100 qualification (Q temperature grade), and 64-pin TQFP package compatibility with board-level thermal and routing constraints.

Technical Context

The TMS320F28034PAGQR implements a Harvard-architecture 32-bit C28x CPU with atomic operations and fast interrupt response, paired with a dedicated 32-bit floating-point CLA that executes control loops independently of the main CPU. Its memory subsystem includes 32KB Flash (secure), 10KB SARAM (0-wait), 8KB Boot ROM, and 1KB OTP, all accessible via unified addressing.

Peripheral integration centers on real-time control: 12 ePWM channels (with HRPWM support), 1 eCAP, 1 eQEP, dual-sample-and-hold 12-bit ADC (4.6 MSPS, 16 inputs), three 32-bit CPU timers, and serial interfaces including eCAN, LIN, I²C, dual SPI, and SCI - all managed through a Peripheral Interrupt Expansion (PIE) block for deterministic latency.

Key Specifications

Pinout & Package

64-pin Thin Quad Flatpack (TQFP), body size 10.0 mm × 10.0 mm, lead pitch 0.5 mm, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28034PAGT and TMS320F28035PAGQR, the TMS320F28034PAGQR delivers AEC-Q100 qualification at 32KB Flash - making it the minimal-cost automotive-qualified option for mid-complexity motor and power control, while avoiding over-provisioned memory or unnecessary temperature margin.

Availability

TMS320F28034PAGQR is available at Aetrix Electronics and suitable for EV on-board chargers, solar string inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for TMS320F28034PAGQR 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and system-on-chip solutions for industrial, automotive, and consumer markets.

The TMS320F2803x family belongs to TI's C2000™ real-time control MCU portfolio, engineered specifically for closed-loop control in power electronics - emphasizing deterministic timing, analog integration, and computational acceleration for motor drives, digital power, and renewable energy systems.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28034PAGQR?

The TMS320F28034PAGQR operates at a maximum CPU frequency of 60 MHz, delivering a 16.67 ns instruction cycle time. This timing is guaranteed across its full operating temperature range of –40°C to 125°C and 3.3 V supply, enabling deterministic real-time execution for high-speed control loops such as SiC-based PFC or resonant LLC converters. The TMS320F28034PAGQR achieves this performance without requiring external clock multiplication or PLL configuration beyond factory defaults.

Does the TMS320F28034PAGQR include a hardware accelerator for control law computation?

Yes, the TMS320F28034PAGQR integrates a dedicated 32-bit floating-point Control Law Accelerator (CLA) that runs independently of the main C28x CPU. The CLA can execute critical control tasks - such as Park/Clarke transforms, PI regulators, or observer calculations - in parallel, reducing main CPU loading and improving loop determinism. This feature is confirmed in the device comparison table and functional block diagram of the TMS320F28034PAGQR datasheet, and is active in all package variants including the PAGQR.

How many PWM channels does the TMS320F28034PAGQR support, and what resolution features are included?

The TMS320F28034PAGQR supports 12 enhanced PWM (ePWM) modules, each with independent A/B outputs, dead-band generation, and trip-zone protection. All 12 channels include High-Resolution PWM (HRPWM) capability, enabling sub-nanosecond duty-cycle adjustment (down to ~150 ps) and dual-edge modulation for precise timing control in high-frequency GaN/SiC applications. This HRPWM functionality is explicitly documented in the device comparison table and peripheral description sections for the TMS320F28034PAGQR.

What analog peripherals are integrated into the TMS320F28034PAGQR?

The TMS320F28034PAGQR integrates a 12-bit, 4.6 MSPS analog-to-digital converter (ADC) with 16 input channels and dual sample-and-hold; three analog comparators with integrated 10-bit DAC references; an on-chip temperature sensor; and dedicated analog I/O pins (AIO0–AIO14). These components are electrically isolated within the analog domain (VDDA/VSSA) and support direct routing to PWM trip zones and CLA triggers - all confirmed in the "Enhanced control peripherals" section and device comparison table for the TMS320F28034PAGQR.

Is the TMS320F28034PAGQR qualified for automotive applications?

Yes, the TMS320F28034PAGQR is AEC-Q100 qualified (Grade 1) for automotive applications, with a specified operating temperature range of –40°C to 125°C. This qualification is explicitly stated in the "Temperature options" section and device comparison table, where the "Q" suffix denotes automotive qualification. The TMS320F28034PAGQR meets stress test requirements for humidity, thermal cycling, and ESD relevant to powertrain and charging systems - distinct from commercial-grade variants like the TMS320F28034PAGT.