Texas Instruments F2800133RGZR

Overview

F2800133RGZR from Texas Instruments is a 120-MHz C28x real-time microcontroller optimized for power electronics control, featuring 64KB flash, 36KB ECC/parity-protected RAM, dual 4-MSPS 12-bit ADCs, and 14 ePWM channels (2 with 150-ps high-resolution capability), deployed in motor drives, UPS, and solar inverters.

For engineers reviewing the F2800133RGZR datasheet, F2800133RGZR pinout, F2800133RGZR application, or F2800133RGZR equivalent, key selection criteria include its 48-pin VQFN (RGZ) package, integrated CMPSS/CMPSS_LITE comparators, CAN interface, and support for closed-loop stepper, BLDC, and AC drive topologies under –40°C to 125°C ambient conditions.

Technical Context

The F2800133RGZR implements TI's C28x 32-bit DSP core with FPU32 and Trigonometric Math Unit (TMU), enabling deterministic execution of floating-point control algorithms at 120 MHz. Its analog subsystem tightly couples two 12-bit ADCs (4 MSPS each) with four post-processing blocks per ADC and three windowed comparators (CMPSS_LITE) with 9.5-bit effective DACs.

Control peripherals include 14 ePWM channels (2 HR-capable), two eCAP modules, one eQEP module supporting CW/CCW operation, and embedded pattern generator (EPG). System-level features comprise dual internal 10-MHz oscillators, crystal/external clock input, windowed watchdog timer, and missing-clock detection circuitry.

Key Specifications

Pinout & Package

The F2800133RGZR is housed in a 48-pin Very Thin Quad Flatpack No Lead (VQFN) package with 0.5-mm pitch, 7 mm × 7 mm body size, and exposed thermal pad for enhanced thermal dissipation in high-power-density applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with F2800135RGZR, the F2800133RGZR trades flash capacity for cost and footprint efficiency while retaining full real-time control capability; versus F2800132RGZR, it delivers 20% higher CPU throughput and double the ePWM channel count-enabling complex multilevel power conversion without external logic.

Availability

F2800133RGZR is available at Aetrix Electronics and suitable for motor drives, solar power optimizers, and uninterruptible power supplies requiring stable component supply, long-term industrial lifecycle support, and qualified automotive-grade packaging.

Supply support for F2800133RGZR 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, embedded processing, and connectivity technologies, with leadership in real-time control and power management ICs.

The TMS320F280013x product line was designed specifically for ultra-low-latency, high-precision control of power electronics-including motor drives, renewable energy converters, and industrial power supplies-leveraging C28x DSP architecture and tightly coupled analog/peripheral subsystems.

FAQ

What is the maximum ADC sampling rate supported by the F2800133RGZR?

The F2800133RGZR integrates two independent 12-bit analog-to-digital converters, each capable of 4 million samples per second (4 MSPS) with a 250-ns conversion time. This allows simultaneous sampling across both ADCs for multi-sensor feedback in real-time control loops, such as dual current sensing in three-phase motor drives. The F2800133RGZR achieves this performance without external oversampling or decimation.

Does the F2800133RGZR support CAN FD or only classical CAN?

The F2800133RGZR supports only classical Controller Area Network (CAN 2.0B) at up to 1 Mbps-not CAN FD. Its single CAN port complies with ISO 11898-1 and is intended for deterministic motor control networking, not high-bandwidth data transfer. For CAN FD capability, engineers should consider the TMS320F28003x or F2838x families, which explicitly list CAN FD support in their device comparisons.

What is the purpose of the CMPSS_LITE modules in the F2800133RGZR?

The F2800133RGZR includes three CMPSS_LITE modules, each containing two comparators and two 9.5-bit effective static DACs with digital glitch filters. These modules provide hardware-accelerated overcurrent, overvoltage, or temperature fault detection-generating immediate trip signals to ePWM modules without CPU intervention. This ensures sub-microsecond response critical for protecting SiC/GaN power devices in the F2800133RGZR-based designs.

Can the F2800133RGZR operate without an external crystal oscillator?

Yes, the F2800133RGZR can operate without an external crystal oscillator. It includes two internal 10-MHz oscillators (INTOSC1 and INTOSC2) with ±1% accuracy when used with external resistor tuning (ExtR). These internal oscillators support full-speed operation, boot, and PLL locking-enabling crystal-free designs for cost-sensitive applications like cordless power tools or appliance pumps where absolute timing precision is secondary to system simplicity.

How many ePWM channels with high-resolution capability does the F2800133RGZR have?

The F2800133RGZR provides exactly two ePWM channels with high-resolution capability-specifically ePWM1A and ePWM1B-delivering 150-ps timing resolution for ultra-precise dead-band generation and gate driver control. This feature is essential for minimizing switching losses and preventing shoot-through in wide-bandgap power stages. All other ePWM channels operate at standard resolution (≈1.5 ns at 120 MHz).