Texas Instruments TMS320F28052PNT

Overview

TMS320F28052PNT from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated CLA accelerator, 12-bit 2-MSPS ADC, seven analog comparators (two with internal DACs), four PGAs, ePWM/eCAP/eQEP peripherals, and dual-zone security - designed for closed-loop motor control in AC-input BLDC drives, inverter systems, and door operator controllers.

For engineers reviewing the TMS320F28052PNT datasheet, TMS320F28052PNT pinout, TMS320F28052PNT application, or TMS320F28052PNT equivalent, this page delivers verified functional specs, validated 80-pin LQFP package mapping, confirmed analog-peripheral configuration (2-MSPS ADC, 4-PGA, 7-comparator AFE), and two production-ready alternative parts with documented differences in flash size, CLA presence, and PGA count.

Technical Context

The TMS320F28052PNT implements a Harvard-architecture C28x CPU running at 60 MHz (16.67-ns cycle time) with atomic operations and fast interrupt response, coupled to an independent 32-bit floating-point CLA for parallel control-law execution. Its analog front end includes dual-sample-and-hold, ratio-metric ADC reference support (VREFHI/VREFLO), and programmable gain amplifiers with discrete 3×/6×/11× settings.

Peripheral integration centers on real-time control: 14 ePWM channels with dead-band and trip-zone logic, one eQEP module for position sensing, one eCAN interface, three SCI/UARTs, one SPI, and one I²C - all coordinated via a unified PIE interrupt controller and clocked by dual zero-pin oscillators or external crystal (X1/X2).

Key Specifications

Pinout & Package

80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch. Pin assignments follow TI's standardized 2805x pin diagram with dedicated analog ground pins (VSSA, M1GND, M2GND, PFCGND), dual voltage domains (VDDA/VDD/VDDIO), and multiplexed GPIO/peripheral signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28052PNT, the F28054PN adds CLA and 32 KB more flash for complex observers and safety stacks, while the F28052MPT sacrifices user RAM for pre-certified motion firmware - making the PNT variant optimal for balanced cost, flexibility, and analog integration in volume motor drives.

Availability

TMS320F28052PNT is available at Aetrix Electronics and suitable for AC-input BLDC motor drives, inverter & motor control systems, and door operator drive control requiring stable component supply, long-term lifecycle support, and automotive-grade temperature range (–40°C to 105°C).

Supply support for TMS320F28052PNT 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 industrial, automotive, and power electronics markets.

The TMS320F28052PNT belongs to TI's C2000™ real-time control MCU family, engineered specifically for high-precision, low-latency closed-loop control in motor drives, digital power, and sensing applications - emphasizing analog integration, deterministic timing, and functional safety readiness.

FAQ

What is the maximum ADC sampling rate supported by the TMS320F28052PNT?

The TMS320F28052PNT supports a maximum ADC sampling rate of 2 MSPS with a 500-ns conversion time per sample. This performance enables high-fidelity current and voltage acquisition for fast inner-loop control in motor drives and inverters, and is achieved using dual-sample-and-hold architecture across its 16-channel 12-bit ADC subsystem.

Does the TMS320F28052PNT include a Control Law Accelerator (CLA)?

No, the TMS320F28052PNT does not include a Control Law Accelerator. Unlike the TMS320F28055 and TMS320F28054 variants, the TMS320F28052PNT omits the CLA block. All control-law computation must be executed on the main C28x CPU, which operates at 60 MHz with 16.67-ns cycle time.

What analog peripherals are integrated into the TMS320F28052PNT?

The TMS320F28052PNT integrates a 12-bit 2-MSPS ADC with 16 channels, seven analog comparators (two with internal 6-bit DACs), four programmable gain amplifiers (PGAs) with gains of ≈3×, 6×, or 11×, one buffered reference DAC (VREFOUT), and four digital filters - forming a complete analog front end for sensor signal conditioning and protection logic.

What is the operating temperature range for the TMS320F28052PNT?

The TMS320F28052PNT is rated for operation from –40°C to 105°C (industrial grade, 'T' suffix). This range supports deployment in demanding environments such as air conditioner outdoor units, industrial motor drives, and automated door systems without derating.

How many ePWM channels does the TMS320F28052PNT provide?

The TMS320F28052PNT provides 14 enhanced PWM (ePWM) channels. These support independent dead-band generation, synchronization, trip-zone inputs (CTRIPM1OUT, CTRIPPFCOUT), and event-triggered ADC start-of-conversion - enabling full-bridge and three-phase inverter control with hardware-level fault response.