Texas Instruments F280039CSPM

Overview

F280039CSPM from Texas Instruments is a C28x-based real-time microcontroller optimized for high-frequency power electronics control, featuring a 120-MHz TMS320C28x DSP core with IEEE 754 FPU, 384KB ECC-protected flash across three banks, 69KB ECC-protected RAM, and integrated analog subsystem including three 4-MSPS 12-bit ADCs. It targets motor drives, solar inverters, and EV charging power stages.

For engineers reviewing the F280039CSPM datasheet, F280039CSPM pinout, F280039CSPM application, or F280039CSPM equivalent, key selection criteria include CLA offload capability, 16-channel ePWM with 150-ps HRPWM resolution, dual CAN/CAN FD interfaces, FSI up to 200 Mbps, and functional safety compliance (ASIL B/SIL 2) in qualified packages.

Technical Context

The F280039CSPM implements a dual-core real-time architecture: the main C28x CPU executes at 120 MHz with FPU, TMU, and VCRC acceleration for fast trigonometric and CRC operations, while the independent 120-MHz CLA handles time-critical control loops without CPU intervention. Both cores share access to on-chip memory and peripherals via dedicated message RAMs and crossbar switches.

Its analog signal chain tightly couples three 12-bit ADCs (4 MSPS each, up to 25 external channels), four CMPSS modules with 12-bit reference DACs, two buffered DAC outputs, and eight SDFM input channels - all synchronized to ePWM timing for precise closed-loop control of GaN/SiC power stages.

Key Specifications

Pinout & Package

Package: 64-pin Low-profile Quad Flatpack (LQFP-64, PM suffix), 12 mm × 12 mm body size, 0.5-mm pitch, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F280037CSPM, F280039CSPM adds 128KB flash, LFU acceleration, and enhanced flash bank erase timing-enabling faster field updates. Versus F280049CSPM, it trades peak CPU frequency and DAC count for proven qualification and lower BOM cost in volume production.

Availability

F280039CSPM is available at Aetrix Electronics and suitable for motor drives, solar inverters, and EV charging infrastructure requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.

Supply support for F280039CSPM 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 power management technologies with over 50 years of innovation in industrial and automotive control systems.

The TMS320F28003x product line was designed specifically for ultra-low-latency real-time control in high-efficiency power electronics-including SiC/GaN-based motor drives, renewable energy converters, and EV powertrain systems.

FAQ

What is the maximum operating junction temperature for the F280039CSPM?

The F280039CSPM has a specified junction temperature range of –40°C to 150°C per TI's SPRSP61C datasheet. This rating applies to all PM-package variants and enables operation in high-thermal-load environments such as enclosed motor drive enclosures or under-hood automotive power modules where ambient temperatures exceed 105°C.

Does the F280039CSPM support functional safety certification out of the box?

The F280039CSPM itself is not AEC-Q100 qualified, but its pin-compatible automotive variant F280039CSPMQ is certified to ASIL B and SIL 2 by TÜV SÜD. The F280039CSPM shares identical safety-relevant hardware features-including MPOST, HWBIST, ERAD, and dual-clock comparator-but requires customer-level system-level validation for functional safety deployment.

How many independent ADC modules does the F280039CSPM integrate, and what is their sampling rate?

The F280039CSPM integrates three independent 12-bit Analog-to-Digital Converters (ADCs), each capable of 4 million samples per second (4 MSPS). These ADCs support simultaneous sampling across all three modules and provide up to 25 total external input channels-including two gpdac outputs-enabling full voltage/current/position acquisition in a single control cycle.

What communication interfaces are available on the F280039CSPM for isolated system architectures?

The F280039CSPM provides Fast Serial Interface (FSI) with one transmitter and one receiver supporting up to 200 Mbps across isolation barriers. Unlike standard SPI or UART, FSI uses differential signaling and built-in error correction, making it ideal for high-speed, noise-immune communication between primary and isolated secondary controllers in EV chargers and UPS systems.

Can the F280039CSPM execute control algorithms independently using the CLA while the C28x CPU handles communications?

Yes, the F280039CSPM's Control Law Accelerator (CLA) operates fully independently of the main C28x CPU: it runs its own 120-MHz floating-point code, accesses dedicated message RAM, and directly triggers ePWM and ADC events. This allows the C28x CPU to manage CAN FD, FSI, and USB communications while the CLA executes time-critical current/voltage regulation loops with deterministic sub-microsecond latency.