Texas Instruments F280021PTSRG4

Overview

F280021PTSRG4 from Texas Instruments is a C28x-based real-time microcontroller designed for high-efficiency power electronics control, featuring a 100MHz DSP core with IEEE 754 FPU, 32KB flash, 24KB RAM (ECC/parity-protected), and dual-zone security. It integrates two 3.45MSPS 12-bit ADCs, 14 ePWM channels (8 with 150ps resolution), four windowed comparators with 12-bit DACs, and supports GaN/SiC gate drive in solar inverters and EV charging modules.

For engineers reviewing the F280021PTSRG4 datasheet, F280021PTSRG4 pinout, F280021PTSRG4 application, or F280021PTSRG4 equivalent, key selection criteria include its 48-pin LQFP package, –40°C to 125°C junction temperature rating, integrated CLB-free architecture, and support for fast integer division, trigonometric math, and background CRC computation in resource-constrained real-time control systems.

Technical Context

The F280021PTSRG4 implements a deterministic 100MHz C28x CPU with hardware-accelerated TMU and VCRC instructions for NLPID and real-time signal processing. Its analog subsystem tightly couples dual 12-bit ADCs (3.45MSPS) with four CMPSS modules and post-processing blocks to enable closed-loop control of power stages without CPU intervention.

Control peripherals include 14 ePWM channels (8 high-resolution), three eCAP modules (one with HRCAP), two eQEP interfaces, and dedicated dead-band generation and hardware trip zones - all synchronized via shared XBAR routing to minimize latency in motor and inverter applications.

Key Specifications

Pinout & Package

48-pin Low-profile Quad Flatpack (LQFP), 9mm × 9mm body size, 0.5mm pitch, exposed thermal pad (non-electrical).

Key Features

Applications

Equivalent & Alternatives

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

Compared with F280021PTSRG4, F280023PTSRG4 offers double flash capacity for advanced motor control stacks, while F280021PTSR reduces BOM cost in non-automotive designs - both retain identical real-time performance, pinout, and peripheral feature set.

Availability

F280021PTSRG4 is available at Aetrix Electronics and suitable for solar power optimizers, EV AC charging stations, and industrial AC drive control modules requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for F280021PTSRG4 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 company specializing in analog and embedded processing technologies, with leadership in real-time control, power management, and signal chain solutions.

The TMS320F28002x product line targets high-efficiency power electronics - including solar inverters, motor drives, and EV infrastructure - by delivering ultra-low-latency deterministic control with integrated analog and digital peripherals.

FAQ

What is the maximum operating frequency of the C28x CPU in F280021PTSRG4?

The F280021PTSRG4 features a C28x 32-bit DSP core running at 100MHz. This frequency is fixed and supported across the full –40°C to 125°C junction temperature range. The core includes IEEE 754-compliant floating-point unit (FPU32), Fast Integer Division (FINTDIV), and Trigonometric Math Unit (TMU) acceleration - all operational at rated speed without derating. F280021PTSRG4 achieves deterministic real-time execution critical for sub-microsecond control loops in power converters.

Does F280021PTSRG4 include Configurable Logic Block (CLB) functionality?

No, F280021PTSRG4 does not include the Configurable Logic Block (CLB). CLB is present only in the 'C' variants of the F28002x family (e.g., F280023C, F280025C). The F280021PTSRG4 is a base variant with full C28x CPU, analog, control, and communication peripherals - but no CLB tiles. This simplifies design for applications that do not require FPGA-like logic augmentation, reducing configuration overhead and validation scope for F280021PTSRG4 implementations.

What are the ADC specifications for F280021PTSRG4?

F280021PTSRG4 integrates two independent 12-bit Analog-to-Digital Converters (ADCs), each capable of 3.45MSPS sampling. Each ADC supports up to 14 external input channels (16 total with internal sensors), includes four post-processing blocks (PPB) for real-time filtering and thresholding, and operates with <290ns conversion time. These ADCs are tightly coupled to ePWM and CMPSS modules, enabling synchronized sampling and hardware-triggered conversions - essential for accurate current sensing and protection in F280021PTSRG4-based motor and inverter control systems.

How many ePWM channels does F280021PTSRG4 support, and what is their resolution?

F280021PTSRG4 supports 14 ePWM channels, with 8 channels (ePWM1–ePWM4) offering high-resolution capability down to 150ps step size. All 14 channels support frequency-independent resolution modes, integrated dead-band generation, and hardware trip zone inputs for immediate fault response. This enables precise gate timing for SiC/GaN devices and flexible topology support - from 3-phase inverters to multilevel converters - directly controlled by F280021PTSRG4 without external logic.

Is F280021PTSRG4 qualified for automotive applications?

Yes, F280021PTSRG4 carries the 'G4' suffix indicating AEC-Q100 Grade 1 qualification (–40°C to 125°C junction temperature), making it suitable for automotive powertrain and charging applications. It meets stress test requirements for temperature cycling, humidity, and ESD, and includes functional safety documentation supporting ISO 26262 ASIL-B system development. The 'S' temperature grade and automotive qualification distinguish F280021PTSRG4 from commercial variants like F280021PTSR, which lacks AEC-Q100 certification.