Texas Instruments TMS320F28053PNT

Overview

TMS320F28053PNT 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 analog front-end including 6 comparators, 2 internal DACs, 1 buffered reference DAC, and 3 PGAs - deployed in motor control subsystems for HVAC inverters and BLDC drives.

For engineers reviewing the TMS320F28053PNT datasheet, TMS320F28053PNT pinout, TMS320F28053PNT application, or TMS320F28053PNT equivalent, key selection criteria include its 80-pin LQFP package, single 3.3-V supply operation, dual-zone security module, 64 KB flash, and support for InstaSPIN-FOC–enabled closed-loop timing in cost-sensitive industrial motion systems.

Technical Context

The TMS320F28053PNT implements a Harvard-architecture C28x CPU with atomic instructions and fast interrupt response, paired with an independent 32-bit floating-point CLA for parallel real-time control loop execution. Its clock system includes two zero-pin oscillators, on-chip crystal oscillator support, and missing-clock detection.

Analog integration centers on dual 12-bit ADC groups (16 total channels, 267 ns conversion time), configurable PGA gain stages (≈3/6/11), and comparator-to-PWM routing for hardware-triggered protection. Memory includes 64 KB flash, 10 KB SARAM, boot ROM, OTP, and secure ROM with 128-bit key lock.

Key Specifications

Pinout & Package

80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, 0.5-mm pitch. Thermal resistance θ_JA = 42.5°C/W (JEDEC Std 2S2P).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28054PN and TMS320F28052PN, the TMS320F28053PNT delivers full CLA capability and 64 KB flash within the same 80-pin LQFP footprint - enabling scalable firmware development from prototype to production while retaining hardware compatibility across the F2805x family.

Availability

TMS320F28053PNT is available at Aetrix Electronics and suitable for HVAC outdoor units, industrial motor drives, and BLDC actuator systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.

Supply support for TMS320F28053PNT 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, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The TMS320F28053PNT belongs to TI's C2000™ real-time control MCU portfolio, designed specifically for high-precision closed-loop control in power electronics - emphasizing deterministic timing, analog integration, and motor control algorithm acceleration.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28053PNT?

The TMS320F28053PNT operates at a maximum CPU frequency of 60 MHz, yielding a 16.67-ns instruction cycle time. This timing enables sub-microsecond execution of critical control tasks such as current-loop PI updates and space-vector modulation calculations. The device maintains this performance across its full –40°C to 105°C operating range when powered from a stable 3.3-V supply.

Does the TMS320F28053PNT include a programmable gain amplifier (PGA), and how many are available?

Yes, the TMS320F28053PNT integrates three programmable gain amplifiers (PGAs), each supporting discrete gain settings of approximately 3, 6, or 11. These PGAs condition low-amplitude shunt voltage signals prior to ADC sampling, improving effective resolution and reducing external op-amp count. Their configuration is controlled via dedicated registers in the Analog Subsystem module.

What analog-to-digital converter (ADC) specifications does the TMS320F28053PNT provide?

The TMS320F28053PNT features a 12-bit ADC with 3.75 MSPS sampling rate, 16 input channels split across two groups (A and B), dual sample-and-hold capability, and 267 ns conversion time. It supports ratio-metric references (VREFHI/VREFLO) and includes an on-chip temperature sensor for oscillator compensation - all essential for precision motor current and voltage measurement.

How is security implemented on the TMS320F28053PNT, and what memory regions does it protect?

The TMS320F28053PNT implements a dual-zone security module with a 128-bit encryption key that locks access to on-chip flash, SARAM, OTP, and secure ROM. Once secured, these memory blocks prevent unauthorized read, debug access, or firmware extraction - safeguarding proprietary motor control algorithms and calibration data stored in the TMS320F28053PNT.

What package type and pin count does the TMS320F28053PNT use, and is it RoHS compliant?

The TMS320F28053PNT uses an 80-pin Low-Profile Quad Flatpack (LQFP) package measuring 12.0 mm × 12.0 mm with 0.5-mm pitch. It is lead-free and RoHS compliant per TI's official packaging documentation (SLMA001). The PN suffix denotes this LQFP variant, and the T suffix indicates the –40°C to 105°C industrial temperature grade.