Texas Instruments F280039SPN

Overview

F280039SPN from Texas Instruments is a C28x-based real-time microcontroller designed for high-precision power electronics control, featuring a 120 MHz DSP core with IEEE 754 FPU, 384KB ECC-protected flash across three banks, 69KB ECC-protected RAM, and dual 120 MHz CLA and CPU execution domains. It integrates three 4-MSPS 12-bit ADCs, 16 ePWM channels (8 with 150-ps resolution), one CAN FD/MCAN port, and Fast Serial Interface (FSI) supporting up to 200 Mbps - deployed in servo drive power stage modules and AC inverter control.

For engineers reviewing the F280039SPN datasheet, F280039SPN pinout, F280039SPN application, or F280039SPN equivalent, this page delivers verified technical context, validated pin functions, confirmed functional safety compliance (ASIL B/SIL 2), and precise alternative part comparisons - all grounded in TI's SPRSP61C documentation and official package data for the 80-pin LQFP (PN) variant.

Technical Context

The F280039SPN implements a dual-core real-time architecture: the C28x CPU executes deterministic control loops at 120 MHz with FPU, TMU, and VCRC acceleration, while the independent CLA runs parallel floating-point tasks using dedicated memory and direct peripheral access. Both domains share synchronized clocking via a PLL and support hardware task switching.

Its analog subsystem tightly couples three 12-bit ADCs (250 ns conversion time) with four CMPSS modules (each with 12-bit DAC references) and two buffered DAC outputs, enabling closed-loop current/voltage sensing and fast overvoltage trip response. The 80-pin PN package exposes 39 GPIOs, 16 analog-capable inputs, and 2 AGPIO pins - matching the TMS320F280039C-PN mechanical footprint.

Key Specifications

Pinout & Package

Package: 80-pin Low-profile Quad Flatpack (LQFP), PN suffix, 14 mm × 14 mm body size, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with F280039SPN, the F280037C-PN retains full peripheral parity and pin compatibility but trades 128KB flash and CLB capability for cost reduction, while the F280034-PN further reduces memory, removes HIC/FSI, and limits analog integration - making it viable only for less demanding control tasks.

Availability

F280039SPN is available at Aetrix Electronics and suitable for AC inverter control modules, servo drive position feedback systems, and EV on-board charger power stages requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification support.

Supply support for F280039SPN 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 decades of expertise in real-time control silicon.

The TMS320F28003x product line was engineered specifically for ultra-low-latency power electronics applications - including GaN/SiC-based motor drives, digital power supplies, and EV traction inverters - emphasizing deterministic timing, analog integration, and functional safety.

FAQ

What is the package type and pin count for F280039SPN?

F280039SPN uses the 80-pin Low-profile Quad Flatpack (LQFP) package, designated PN suffix, with 14 mm × 14 mm body size and 0.5 mm pitch. This matches the mechanical footprint and pinout of TMS320F280039C-PN per TI's SPRSP61C datasheet and Package Information table. All 39 GPIOs, 16 analog inputs, and 2 AGPIO pins are accessible in this configuration.

Does F280039SPN support functional safety certification?

Yes, F280039SPN qualifies for ISO 26262 ASIL B and IEC 61508 SIL 2 certification when implemented in PZ or Q100-qualified packages. While the SPN suffix itself denotes the commercial-grade 80-pin LQFP variant, its underlying silicon includes all required safety mechanisms: Memory Power-On Self Test (MPOST), Hardware Built-in Self Test (HWBIST), dual-clock comparator (DCC), and ERAD trace capture - documented in Section 1 and Table 4-1 of SPRSP61C.

How does the CLA in F280039SPN improve real-time performance?

The CLA in F280039SPN is a fully independent 120 MHz 32-bit floating-point accelerator with dedicated program/data RAM and direct peripheral access. It executes control law code - such as NLPID or observer algorithms - in parallel with the main C28x CPU, eliminating scheduling contention. This reduces total loop latency by up to 60% compared to CPU-only execution, as verified in TI's C2000Ware benchmark examples for motor control.

What analog peripherals are integrated into F280039SPN?

F280039SPN integrates three 4-MSPS 12-bit ADCs with 250 ns conversion time, four windowed comparators (CMPSS) each with 12-bit reference DACs, two 12-bit buffered DAC outputs, eight Sigma-Delta Filter Module (SDFM) input channels, and a temperature sensor. These are fully operational in the 80-pin PN package, supporting simultaneous current/voltage sensing and fast overvoltage trip response in power stage applications.

Is F280039SPN pin-compatible with other F28003x variants in the same package?

Yes, F280039SPN shares identical pinout and electrical characteristics with all TMS320F28003x devices in the 80-pin PN package, including F280039C-PN, F280037C-PN, and F280034-PN. Pin assignments for VDDIO, ADC inputs, ePWM outputs, CAN FD, and FSI are functionally identical across these parts, enabling hardware reuse and software migration within the same package family.