Texas Instruments TMS320F28027DATR

Overview

TMS320F28027DATR from Texas Instruments is a 32-bit C28x real-time microcontroller optimized for motor control and digital power applications, featuring a 60-MHz CPU, 32 KB on-chip flash, 6 KB SARAM, 8 ePWM channels with 4 high-resolution outputs, 12-bit ADC (3 MSPS, 7 channels), and integrated comparators. It operates from a single 3.3-V supply in a 38-pin TSSOP package and targets compact industrial inverters and BLDC drives.

For engineers reviewing the TMS320F28027DATR datasheet, TMS320F28027DATR pinout, TMS320F28027DATR application, or TMS320F28027DATR equivalent, key selection criteria include its 60-MHz deterministic C28x core, HRPWM dual-edge modulation capability, analog integration (ADC + comparators), code compatibility with legacy F280x devices, and qualification for –40°C to 105°C operation.

Technical Context

The TMS320F28027DATR implements a Harvard-architecture C28x CPU with atomic instructions, fast interrupt response, and unified memory mapping-enabling deterministic real-time loop execution. Its peripheral set centers on closed-loop control: ePWM modules support dead-time insertion and trip-zone protection, while the 12-bit ADC delivers 216.67-ns conversion time with dual sample-and-hold for synchronized current sensing.

On-chip analog features include two independent comparators with internal 10-bit DAC references, directly routable to PWM trip inputs for hardware-based overcurrent protection. The device uses an internal voltage regulator for single-rail 3.3-V operation and supports clocking via internal zero-pin oscillators, external crystal (X1/X2), or external clock input (XCLKIN), with missing-clock detection and watchdog timer.

Key Specifications

Pinout & Package

38-pin Thin Shrink Small-Outline Package (TSSOP), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm, RoHS-compliant, thermal pad not included.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28026DATR, the TMS320F28027DATR delivers higher PWM precision and larger memory for complex control; versus TMS320F28027PT, it trades pin count and analog channel count for smaller footprint and lower assembly cost - making it optimal for highly integrated, space-constrained motor drives.

Availability

TMS320F28027DATR is available at Aetrix Electronics and suitable for industrial motor drives, solar microinverters, and AC-input BLDC motor drives requiring stable component supply across multi-year production cycles.

Supply support for TMS320F28027DATR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.

The TMS320F28027DATR belongs to TI's C2000™ real-time microcontroller product line, engineered specifically for closed-loop control in power electronics - emphasizing deterministic timing, analog integration, and motor/power algorithm acceleration.

FAQ

What is the maximum operating frequency of the TMS320F28027DATR CPU core?

The TMS320F28027DATR features a C28x 32-bit CPU core rated for 60 MHz operation, corresponding to a 16.67-ns instruction cycle time. This frequency is fully supported across the specified industrial temperature range (–40°C to 105°C) and enables sub-microsecond execution of critical control loops such as current regulation in motor drives. The device does not support overclocking beyond this rated speed.

Does the TMS320F28027DATR include hardware-based protection features for motor drive applications?

Yes, the TMS320F28027DATR integrates multiple hardware protection mechanisms: four high-resolution PWM outputs support programmable dead-time insertion and trip-zone (TZ) inputs; two analog comparators can be routed directly to ePWM trip logic for <100-ns overcurrent shutdown; and the device includes built-in power-on and brown-out reset circuitry. These features enable robust, latency-free fault response without CPU intervention.

How many analog-to-digital converter (ADC) channels does the TMS320F28027DATR support, and what is its sampling performance?

The TMS320F28027DATR includes a 12-bit ADC with 7 input channels (ADCINA0–ADCINA6), capable of 3 million samples per second (MSPS) with a 216.67-ns conversion time. It supports dual sample-and-hold for simultaneous sampling and ratiometric operation using internal VREFHI/VREFLO references - essential for accurate current/voltage measurement in noisy power stage environments.

Is the TMS320F28027DATR pin-compatible with other devices in the F2802x family?

Yes, the TMS320F28027DATR shares identical pinout and electrical characteristics with other 38-pin DA TSSOP variants in the F2802x family, including TMS320F28026DATR and TMS320F28023DATR. This allows direct substitution within the same package footprint, provided firmware and peripheral configuration align with the specific memory size, PWM count, and analog feature set of the target device.

What development tools and software support are available for the TMS320F28027DATR?

Texas Instruments provides full support for the TMS320F28027DATR via C2000Ware - a free, open-source software development kit including device drivers, control law libraries (e.g., FOC, PID), and example projects. Hardware tools include the TMDSCNCD28027 controlCARD and LAUNCHXL-F28027 LaunchPad, both compatible with Code Composer Studio IDE and offering JTAG debugging, real-time emulation, and out-of-box motor control demos.