Texas Instruments TMS320F28052MPNQ

Overview

TMS320F28052MPNQ from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 12-bit ADC (3.75 MSPS), 14 ePWM channels, and dual-zone security-designed for automotive-grade motor control in air conditioner outdoor units and BLDC drives.

For engineers reviewing the TMS320F28052MPNQ datasheet, TMS320F28052MPNQ pinout, TMS320F28052MPNQ application, or TMS320F28052MPNQ equivalent, key selection factors include AEC Q100 qualification (–40°C to 125°C), on-chip PGAs (gain ≈ 3/6/11), eCAN interface, and 80-pin LQFP package with 42 GPIOs and analog front-end routing to PWM trip logic.

Technical Context

The TMS320F28052MPNQ implements a Harvard-architecture 32-bit C28x CPU with atomic operations and unified memory model, paired with a 32-bit floating-point CLA that executes control law code independently of the main CPU. Its analog subsystem includes seven comparators with three internal DACs, one buffered reference DAC, four PGAs, and dual-sample-and-hold ADC support.

It integrates two zero-pin oscillators, watchdog timer, missing-clock detection, and JTAG boundary scan (IEEE 1149.1). The device supports single 3.3-V supply operation with internal 1.8-V VREG enabled via VREGENZ pin, and features AEC Q100 qualification for automotive applications.

Key Specifications

Pinout & Package

80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch, RoHS-compliant. Thermal resistance θ_JA = 42.5°C/W (JEDEC standard board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28052MPNQ, TMS320F28054MPNQ offers double flash capacity for advanced control features, while TMS320F28052PNQ provides identical functionality without AEC Q100 validation-enabling trade-offs between automotive compliance, memory headroom, and BOM cost.

Availability

TMS320F28052MPNQ is available at Aetrix Electronics and suitable for air conditioner outdoor units, automotive BLDC motor drives, and industrial inverter systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TMS320F28052MPNQ 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 with leadership in industrial, automotive, and power electronics markets.

The TMS320F2805x product line delivers entry-performance real-time control MCUs optimized for cost-sensitive motor control, digital power, and automotive subsystems-integrating high analog density and deterministic C28x execution in compact LQFP packages.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28052MPNQ?

The TMS320F28052MPNQ operates at a maximum CPU frequency of 60 MHz, delivering a 16.67-ns instruction cycle time. This timing is guaranteed across its full AEC Q100 temperature range (–40°C to 125°C) and supports deterministic real-time control loops with sub-microsecond interrupt latency. All performance specifications for the TMS320F28052MPNQ are validated under worst-case voltage and temperature conditions per TI's SPRS797F datasheet.

Does the TMS320F28052MPNQ include an integrated voltage regulator, and how is it enabled?

Yes, the TMS320F28052MPNQ includes an internal 1.8-V voltage regulator (VREG) for core logic. It is enabled by driving the VREGENZ pin (Pin 71) low (tied to VSS); driving VREGENZ high disables the VREG and allows use of an external 1.8-V supply. When enabled, VREG draws power from the 3.3-V VDDIO rail, eliminating the need for a second power rail in most designs. This configuration is confirmed in Section 6.2.1 of the TMS320F28052MPNQ datasheet.

How many ePWM channels does the TMS320F28052MPNQ support, and what trip-zone protection is available?

The TMS320F28052MPNQ supports 14 enhanced PWM (ePWM) channels with dedicated trip-zone inputs (TZ1–TZ3) and CTRIPM1OUT/CTRIPPFCOUT outputs. Each ePWM module includes programmable dead-band, event-triggered ADC start, and hardware-based fault response-allowing immediate PWM shutdown within one SYSCLK cycle upon comparator or external fault assertion. This capability is documented in the "Enhanced Control Peripherals" section of the TMS320F28052MPNQ datasheet.

What analog peripherals are integrated into the TMS320F28052MPNQ, and how are they used in motor control?

The TMS320F28052MPNQ integrates a 12-bit 3.75-MSPS ADC with dual-sample-and-hold, seven analog comparators (three with internal DAC references), one buffered reference DAC, four programmable gain amplifiers (PGAs), and four digital filters. In motor control, these enable direct current/voltage sensing, fast overcurrent protection via comparator-to-PWM routing, and sensor signal conditioning-reducing external components. These features are specified in Table 5-1 and Section 3 of the TMS320F28052MPNQ datasheet.

Is the TMS320F28052MPNQ AEC Q100 qualified, and what does the 'Q' suffix indicate?

Yes, the 'Q' suffix in TMS320F28052MPNQ explicitly denotes AEC Q100 qualification for automotive applications, validated across –40°C to 125°C ambient temperature. This includes stress testing for reliability, failure mechanisms, and electrical parameter stability under automotive environmental conditions. The qualification status is stated in the "Temperature options" section of the TMS320F28052MPNQ datasheet (SPRS797F) and confirmed in TI's official product folder.