Texas Instruments TMS320F28035RSHT

Overview

TMS320F28035RSHT from Texas Instruments is a 32-bit real-time microcontroller featuring a 60MHz C28x CPU, integrated Control Law Accelerator (CLA), 64KB on-chip Flash, 10KB SARAM, and high-resolution PWM (HRPWM) for closed-loop motor and power control. It operates from a single 3.3V supply, supports –40°C to 125°C, and targets EV charging, solar inverters, and industrial motor drives.

For engineers reviewing the TMS320F28035RSHT datasheet, TMS320F28035RSHT pinout, TMS320F28035RSHT application, or TMS320F28035RSHT equivalent, key selection criteria include CLA offload capability, HRPWM dual-edge modulation, 12-bit ADC with 4.6 MSPS sampling, eCAN/LIN/SCI serial interfaces, and VQFN-56 thermal performance in space-constrained power modules.

Technical Context

The TMS320F28035RSHT implements a Harvard-architecture C28x CPU with atomic instructions and zero-wait-state memory access, enabling deterministic real-time execution. Its CLA executes floating-point control law code independently of the main CPU, reducing latency for time-critical PWM updates.

Peripheral integration includes seven ePWM modules (four with HRPWM), three eCAP inputs, one eQEP module, and a 16-channel 12-bit ADC with dual sample-and-hold-configured for synchronous sampling across multiple current/voltage sensors in motor phase-leg monitoring.

Key Specifications

Pinout & Package

56-pin Very Thin Quad Flatpack No-Lead (VQFN-RSH) package with exposed thermal pad; optimized for compact power electronics layouts and thermal dissipation in motor drive gate driver boards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28034RSHT, the TMS320F28035RSHT delivers CLA-accelerated control and double Flash for complex observer-based motor algorithms; versus TMS320F28035PAGT, it trades pin count and thermal headroom for ultra-compact VQFN packaging in space-limited power modules.

Availability

TMS320F28035RSHT is available at Aetrix Electronics and suitable for EV charging stations, solar power optimizers, and industrial servo drives requiring stable component supply across extended product lifecycles.

Supply support for TMS320F28035RSHT 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 digital signal processing technologies.

The TMS320F2803x family delivers entry-level real-time control MCUs with integrated analog peripherals and CLA acceleration-designed specifically for cost-sensitive, high-efficiency motor and power conversion systems.

FAQ

What is the maximum operating frequency of the TMS320F28035RSHT?

The TMS320F28035RSHT operates at a maximum CPU clock frequency of 60 MHz, corresponding to a 16.67 ns instruction cycle time. This frequency is achieved using the on-chip PLL with an external crystal or oscillator input, and all peripherals-including ADC, ePWM, and CLA-are fully functional at this speed without timing derating.

Does the TMS320F28035RSHT include a hardware security module?

Yes, the TMS320F28035RSHT includes a Code Security Module with 128-bit encryption key and lock mechanism. It protects on-chip Flash, SARAM, and OTP memory blocks from unauthorized readout or modification, preventing firmware reverse engineering and ensuring intellectual property integrity in production deployments.

How many high-resolution PWM channels does the TMS320F28035RSHT support?

The TMS320F28035RSHT supports seven ePWM modules, of which four are enhanced with High-Resolution PWM (HRPWM) capability. Each HRPWM channel provides 150-ps resolution for both rising and falling edge placement-enabling precise dead-time control and frequency modulation essential for SiC/GaN-based resonant topologies.

What serial communication interfaces are integrated into the TMS320F28035RSHT?

The TMS320F28035RSHT integrates one eCAN module, one LIN module, one SCI (UART-compatible) module, two SPI modules, and one I2C module. These interfaces support concurrent communication with battery management systems, motor encoders, isolated gate drivers, and supervisory controllers without external protocol translators.

Is the TMS320F28035RSHT pin-compatible with other F2803x variants in the RSH package?

Yes, the TMS320F28035RSHT shares identical pinout and electrical characteristics with other 56-pin RSH-packaged F2803x devices (e.g., TMS320F28034RSHT, TMS320F28033RSHT). All RSH variants use the same VQFN-56 mechanical footprint, thermal pad layout, and signal mapping-enabling drop-in replacement during design reuse or cost optimization.