Texas Instruments TMS320F28034PAGS

Overview

TMS320F28034PAGS from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32 KB on-chip Flash, 10 KB SARAM, 12-bit ADC (4.6 MSPS, 14 channels), ePWM (12 channels), eCAN, and LIN - designed for digital power control in DC/DC converters, motor drives, and EV charging modules.

For engineers reviewing the TMS320F28034PAGS datasheet, TMS320F28034PAGS pinout, TMS320F28034PAGS application, or TMS320F28034PAGS equivalent, key selection criteria include CLA offload capability, high-resolution PWM timing accuracy, analog integration (comparators + dual sample-and-hold), single 3.3-V supply operation, and AEC-Q100-qualified S-grade temperature range (–40°C to 125°C).

Technical Context

The TMS320F28034PAGS implements a Harvard-architecture 32-bit C28x CPU with atomic instructions and fast interrupt response, paired with a dedicated 32-bit floating-point CLA that executes control loops independently of the main CPU. Its peripheral set includes three 32-bit CPU timers, 12 ePWM channels (with HRPWM support), and one eCAN module compliant with ISO 11898-1.

Memory architecture features 32 KB of secure Flash (64K-word addressable), 10 KB of zero-wait-state SARAM accessible by both CPU and CLA, boot ROM (8K × 16), and 1 KB OTP - all protected by a 128-bit code-security module. The ADC supports simultaneous sampling across up to 14 channels with 216.67 ns conversion time and ratio-metric reference inputs (VREFHI/VREFLO).

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28034PAGS, the TMS320F28035PAGS provides double Flash capacity and two additional ePWM channels for expanded control scope, while the TMS320F28034PAGT offers identical real-time performance at lower cost for non-automotive thermal environments.

Availability

TMS320F28034PAGS is available at Aetrix Electronics and suitable for EV charging station power modules, solar microinverters, and industrial servo drive designs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.

Supply support for TMS320F28034PAGS 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 leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in industrial and automotive electronics.

The TMS320F2803x family delivers entry-level real-time control performance for cost-sensitive digital power and motor control applications, emphasizing analog integration, low-pin-count packaging, and CLA-accelerated loop execution.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28034PAGS?

The TMS320F28034PAGS operates at a maximum CPU frequency of 60 MHz, delivering a 16.67 ns instruction cycle time. This timing is achieved using the internal PLL with an external crystal or clock source, and is fully supported across its specified temperature range (–40°C to +125°C). All timing-critical peripherals-including ePWM, ADC, and CLA-scale synchronously with this clock domain.

Does the TMS320F28034PAGS include a hardware security module, and how is it implemented?

Yes, the TMS320F28034PAGS includes a dedicated code-security module with 128-bit encryption key and lock mechanism. It protects Flash, SARAM, and OTP memory blocks from unauthorized read/write access and prevents firmware reverse engineering. Security is enforced at boot time and during runtime via hardware-enforced memory mapping and key validation - no software-only bypass is possible.

How many ePWM channels does the TMS320F28034PAGS support, and what high-resolution features are included?

The TMS320F28034PAGS supports 12 ePWM channels. Each channel includes high-resolution extension (HRPWM) capable of sub-nanosecond duty-cycle adjustment, independent trip-zone logic, dead-band generation, and synchronization inputs/outputs (EPWMSYNCI/EPWMSYNCO). These features enable precise gate-drive timing for SiC and GaN power devices in high-frequency resonant topologies.

Is the TMS320F28034PAGS pin-compatible with other F2803x variants in the same package?

Yes, the TMS320F28034PAGS is pin-compatible with all other F2803x devices offered in the 64-pin TQFP (PAG) package, including TMS320F28030PAG, TMS320F28031PAG, TMS320F28032PAG, TMS320F28033PAG, and TMS320F28035PAG. Pin assignments, power domains, and peripheral multiplexing are identical - only memory size, CLA presence, and ADC/ePWM channel count differ between variants.

What analog peripherals are integrated into the TMS320F28034PAGS, and how are they used in power control?

The TMS320F28034PAGS integrates a 12-bit, 4.6 MSPS ADC with 14 input channels and dual sample-and-hold, three analog comparators with internal 10-bit DAC references, and an on-chip temperature sensor. In power control, the ADC samples phase voltages/currents synchronously with PWM events, while comparators provide hardware-fast overcurrent protection by directly asserting ePWM trip-zone signals - reducing fault response time to under 100 ns.