Texas Instruments TMS320F28027DAQ

Overview

TMS320F28027DAQ from Texas Instruments is a 32-bit C28x real-time microcontroller optimized for digital power and motor control, 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 with DACs. It operates from a single 3.3-V supply and targets inverter gate drive, BLDC motor commutation, and AC-DC power stage control.

For engineers reviewing the TMS320F28027DAQ datasheet, TMS320F28027DAQ pinout, TMS320F28027DAQ application, or TMS320F28027DAQ equivalent, key selection criteria include its 38-pin TSSOP package, 60-MHz deterministic execution, HRPWM dual-edge modulation capability, analog integration (ADC + comparators), and code compatibility with C2000™ F2800x family for scalable control firmware.

Technical Context

The TMS320F28027DAQ implements the TMS320C28x CPU core with Harvard architecture, atomic instructions, and unified memory model-enabling deterministic real-time loop execution under 100-ns jitter. Its peripheral set includes three 32-bit CPU timers, PIE interrupt controller, and dedicated ePWM modules with TZ (trip-zone) protection logic for fault-safe power switching.

On-chip analog subsystem comprises a 12-bit ADC with 216.67-ns conversion time, dual sample-and-hold, and ratio-metric reference support (VREFHI/VREFLO); two analog comparators route directly to PWM trip logic for hardware-based overcurrent response without CPU intervention.

Key Specifications

Pinout & Package

Package: 38-pin Thin Shrink Small-Outline Package (TSSOP), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28027PT, the TMS320F28027DAQ trades peripheral count and ADC resolution for compact TSSOP packaging and lower system-level cost; versus TMS320F28026DAQ, it delivers higher processing throughput, faster ADC, and enhanced HRPWM precision-critical for high-efficiency digital power topologies.

Availability

TMS320F28027DAQ is available at Aetrix Electronics and suitable for industrial motor drives, solar micro-inverters, and AC-DC power supplies requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.

Supply support for TMS320F28027DAQ 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 TMS320F28027DAQ belongs to TI's C2000™ Entry Performance MCU line, designed specifically for cost-optimized, low-pin-count digital power and motor control applications requiring deterministic real-time responsiveness and integrated analog peripherals.

FAQ

What is the maximum operating frequency of the TMS320F28027DAQ?

The TMS320F28027DAQ features a TMS320C28x CPU core rated for 60 MHz operation, delivering a 16.67-ns instruction cycle time. This frequency is supported across its full operating temperature range (–40°C to 105°C) and enables sub-microsecond control loop execution critical for high-bandwidth motor and power applications. The TMS320F28027DAQ achieves this performance with single 3.3-V supply and integrated voltage regulation.

Does the TMS320F28027DAQ support hardware-based overcurrent protection?

Yes, the TMS320F28027DAQ integrates two analog comparators with internal 10-bit DAC references that can route outputs directly to ePWM trip-zone (TZ) logic. This enables hardware-level fault response-bypassing CPU interrupt latency-to disable PWM outputs within one system clock cycle upon overcurrent detection. The TMS320F28027DAQ uses dedicated pins like COMP1OUT and TZ1 to implement this safety-critical function.

What analog-to-digital converter (ADC) capabilities does the TMS320F28027DAQ provide?

The TMS320F28027DAQ includes a 12-bit ADC with 3 MSPS sampling rate, 7 input channels (ADCINA0–ADCINA6), and 216.67-ns conversion time. It supports dual sample-and-hold, ratio-metric referencing (VREFHI/VREFLO), and hardware synchronization to PWM events. These features allow precise current/voltage sensing in digitally controlled power stages without CPU overhead-key for the TMS320F28027DAQ's target applications.

Is the TMS320F28027DAQ pin-compatible with other F2802x family members?

The TMS320F28027DAQ shares the same 38-pin DA TSSOP footprint and pin assignments with all F2802x variants in the DA package-including TMS320F28026DAQ, TMS320F28023DAQ, and TMS320F28022DAQ. Signal mapping, power pin locations, and JTAG interface are identical, enabling drop-in replacement for memory- or performance-downgraded versions while preserving PCB layout and firmware compatibility.

How does the TMS320F28027DAQ handle power supply sequencing?

The TMS320F28027DAQ requires no power supply sequencing: all rails (VDD, VDDIO, VDDA) may be powered simultaneously from a single 3.3-V source. An on-chip voltage regulator generates internal 1.8-V logic supply, eliminating external regulators. Integrated POR and BOR circuitry ensure reliable startup across voltage ramps, making the TMS320F28027DAQ suitable for simple, low-component-count power architectures in cost-sensitive industrial designs.