Texas Instruments F280039CSPN

Overview

F280039CSPN from Texas Instruments is a C28x-based real-time microcontroller with 120 MHz DSP core, IEEE 754 FPU, CLA accelerator, 384KB ECC-protected flash, and 69KB ECC-protected RAM. It integrates three 4-MSPS 12-bit ADCs, 16 ePWM channels (8 with 150-ps resolution), dual CAN/CAN FD interfaces, FSI up to 200 Mbps, and CLB for FPGA-like logic extension-designed for high-efficiency power electronics control in motor drives and digital power modules.

For engineers reviewing the F280039CSPN datasheet, F280039CSPN pinout, F280039CSPN application, or F280039CSPN equivalent, key selection criteria include CLA offload capability, 150-ps HRPWM timing precision, dual CAN FD + DCAN support, on-chip analog signal chain integration, and AEC-Q100 qualification readiness via PN-package variants.

Technical Context

The F280039CSPN implements a dual-core real-time architecture: the C28x CPU executes main control loops at 120 MHz with FPU, TMU, and VCRC acceleration, while the independent 120 MHz CLA handles time-critical tasks like PWM update, current loop computation, and sensor preprocessing-enabling deterministic sub-microsecond response. Its memory subsystem features three independent 128KB flash banks supporting concurrent execute-and-program operations and Live Firmware Update with minimized downtime.

Analog-peripheral co-location includes three synchronized 12-bit ADCs with four post-processing blocks each, four windowed comparators with integrated 12-bit DAC references, two buffered DAC outputs, and eight SDFM input channels-tightly coupled to ePWM and eCAP modules for closed-loop control of GaN/SiC power stages. The CLB provides four configurable logic tiles for custom I/O sequencing, position manager logic, or fault-handling state machines.

Key Specifications

Pinout & Package

80-pin Low-profile Quad Flatpack (LQFP), 14 mm × 14 mm body size, 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with F280037CPN, F280039CSPN adds 128KB flash and LFU support for robust field updates; versus F280049CPN, it retains FSI and HIC for high-throughput isolated communication and host interfacing-making it optimal for industrial power modules requiring both upgradeability and system-level connectivity.

Availability

F280039CSPN is available at Aetrix Electronics and suitable for industrial motor drives, solar microinverters, and EV on-board chargers requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification pathways.

Supply support for F280039CSPN 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 delivering analog, embedded processing, and connectivity solutions with deep expertise in real-time control and power electronics.

The TMS320F28003x product line was designed specifically for ultra-low-latency, high-efficiency power conversion systems-including motor drives, digital power supplies, renewable energy inverters, and EV charging infrastructure-leveraging C28x DSP performance and hardware accelerators.

FAQ

What is the maximum operating temperature for the F280039CSPN?

The F280039CSPN has a specified free-air operating temperature range of –40°C to 125°C and a junction temperature limit of –40°C to 150°C. These ratings apply to the 80-pin LQFP (PN) package variant and are validated per TI's recommended operating conditions in the SPRSP61C datasheet. Thermal design must ensure junction temperature remains within limits under worst-case power dissipation.

Does the F280039CSPN support functional safety certification?

Yes, the F280039CSPN supports functional safety development with hardware features including Memory Power-On Self Test (MPOST), Hardware Built-in Self Test (HWBIST), Embedded Real-time Analysis and Diagnostic (ERAD), and Dual-Clock Comparator (DCC). While the F280039CSPN itself is not AEC-Q100 qualified, its pin-compatible F280039C-Q1 (PZ/PN) variant is certified to ASIL B and SIL 2 by TÜV SÜD-enabling reuse of safety documentation and architecture.

How many independent ADC modules does the F280039CSPN integrate?

The F280039CSPN integrates three independent 12-bit Analog-to-Digital Converters (ADCs), each capable of 4 million samples per second (4 MSPS) with 250 ns conversion time. Each ADC includes four dedicated Post-Processing Blocks (PPBs) for real-time filtering, oversampling, and averaging-enabling simultaneous voltage, current, and temperature acquisition in high-speed motor control loops.

What communication interfaces with isolation capability does the F280039CSPN provide?

The F280039CSPN provides Fast Serial Interface (FSI) with dedicated TX and RX differential pairs supporting up to 200 Mbps isolated communication across capacitive or magnetic barriers. Unlike standard UART or SPI, FSI includes built-in CRC, error detection, and automatic retransmission-making it suitable for replacing multiple optocouplers in motor drive gate driver interfaces and isolated power stage controllers.

Is the F280039CSPN pin-compatible with other F28003x devices in the same package?

Yes, the F280039CSPN is fully pin-compatible with all other F28003x devices offered in the 80-pin LQFP (PN) package-including F280037CPN, F280034PN, and F280034-Q1PN. Pin assignments, electrical characteristics, and peripheral mappings match exactly across these variants, enabling drop-in replacement for memory or feature scaling without PCB redesign.