Texas Instruments TMS320F28075PZPS

Overview

TMS320F28075PZPS from Texas Instruments is a 120MHz C28x 32-bit floating-point real-time microcontroller with IEEE 754 FPU, Trigonometric Math Unit (TMU), and independent 120MHz Control Law Accelerator (CLA). It integrates 512KB ECC-protected flash, 100KB RAM (ECC/parity), three 12-bit ADCs (3.1MSPS each), 24 ePWM channels (16 HRPWM), dual CAN, USB 2.0, and CLB for industrial motor control and solar inverter applications.

For engineers reviewing the TMS320F28075PZPS datasheet, TMS320F28075PZPS pinout, TMS320F28075PZPS application, or TMS320F28075PZPS equivalent, key selection criteria include HRPWM resolution for SiC/GaN gate drive timing, CLA offloading capability for torque-loop computation, ADC simultaneous sampling across three phases, functional safety certification up to ASIL B/SIL 2, and HTQFP-100 thermal performance in high-power converter designs.

Technical Context

The TMS320F28075PZPS implements a dual-core real-time architecture: the C28x CPU handles system-level tasks and communications, while the CLA executes time-critical control loops-such as field-oriented control (FOC) inner loops-concurrently without CPU intervention. Its analog subsystem supports simultaneous sampling of three independent power phases via three 12-bit ADCs, each with dedicated S/H and hardware post-processing including windowed comparators with DAC references for fast overcurrent trip.

Control peripherals include 16 HRPWM channels (8 modules, A/B channel high-resolution), dead-band generation on standard and HRPWM outputs, six eCAP modules for precise edge capture, and three eQEP interfaces for position feedback. The device uses two internal 10MHz zero-pin oscillators and supports external crystal or clock input, with integrated missing-clock detection and windowed watchdog for robust operation in harsh environments.

Key Specifications

Pinout & Package

Package: HTQFP-100 (PowerPAD™ Thermally Enhanced Thin Quad Flatpack), 16mm × 16mm body size, exposed die pad requiring soldering to PCB ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28076PTP, TMS320F28075PZPS trades I/O count and EMIF for compact HTQFP-100 packaging and identical core/peripheral performance; versus TMS320F280049CPTT, it delivers 20% higher CPU/CLA frequency, full CLA coprocessing, and 50% more HRPWM channels for advanced SiC/GaN control.

Availability

TMS320F28075PZPS is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and EV on-board chargers requiring stable component supply, long-term lifecycle management, and automotive-grade temperature range (–40°C to 125°C junction).

Supply support for TMS320F28075PZPS 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 50 years of innovation in industrial and automotive control solutions.

The TMS320F28075PZPS belongs to TI's C2000™ real-time microcontroller product line, engineered specifically for high-precision closed-loop control in power electronics-including motor drives, renewable energy inverters, and EV infrastructure-where deterministic latency, analog integration, and functional safety are critical.

FAQ

What is the operating temperature range for the TMS320F28075PZPS?

The TMS320F28075PZPS is rated for a junction temperature range of –40°C to 125°C (S grade), making it suitable for under-hood automotive applications and industrial environments with elevated ambient temperatures. This rating is validated per TI's qualification testing and documented in the SPRS902K datasheet revision February 2024. The device maintains full specification compliance across this range, including ADC accuracy, PWM timing, and CLA execution latency.

Does the TMS320F28075PZPS support functional safety certification?

Yes, the TMS320F28075PZPS is ISO 26262 certified up to ASIL B and IEC 61508 certified up to SIL 2 by TÜV SÜD. Its hardware integrity meets ASIL B/SIL 2 requirements, and TI provides functional safety documentation-including FMEDA reports and safety manuals-to support system-level certification for motor drives, solar inverters, and EV charging equipment. The TMS320F28075PZPS itself is not automotive-qualified (Q1 grade), but its safety features are fully leveraged in the TMS320F28075-Q1 variant.

How many high-resolution PWM channels does the TMS320F28075PZPS provide?

The TMS320F28075PZPS provides 16 high-resolution PWM (HRPWM) channels, organized across 8 ePWM modules with both A and B outputs capable of high-resolution timing. Each HRPWM channel achieves <150ps resolution, enabling precise gate drive control for wide-bandgap devices like SiC and GaN FETs. This capability is identical to the TMS320F28076 and is confirmed in Table 4-1 of the SPRS902K datasheet.

Can the TMS320F28075PZPS execute code independently using the CLA?

Yes, the TMS320F28075PZPS includes a dedicated Control Law Accelerator (CLA) that runs IEEE 754 single-precision floating-point instructions at 120MHz, completely independent of the main C28x CPU. The CLA responds to peripheral triggers (e.g., ADC end-of-conversion or ePWM timer events) and executes control loops-such as current regulation or position control-in parallel, freeing the CPU for communications, diagnostics, and supervisory tasks. This dual-execution model is fundamental to the TMS320F28075PZPS architecture.

What analog peripherals are integrated into the TMS320F28075PZPS?

The TMS320F28075PZPS integrates three 12-bit analog-to-digital converters (ADCs), each capable of 3.1MSPS sampling, with hardware post-processing including saturation calibration, error-from-setpoint calculation, and eight windowed comparators with 12-bit DAC references. It also includes three 12-bit buffered DAC outputs and a Sigma-Delta Filter Module (SDFM) with six input channels. These peripherals are fully operational in the PZP (HTQFP-100) package, though ADC input count is reduced to 14 channels versus 17 in the PTP package.