Texas Instruments TMS320F28022PTS

Overview

TMS320F28022PTS from Texas Instruments is a C28x-core 32-bit real-time control microcontroller optimized for motor and power conversion applications. It operates at 50 MHz (20-ns cycle time), integrates 16 KB flash, 3 KB SARAM, 8 KB boot ROM, 12-bit ADC with 7 channels and 3 MSPS sampling rate, and features ePWM, HRPWM, eCAP, SCI, SPI, and I²C peripherals. It targets inverter gate drive and digital power control in industrial AC-DC and BLDC motor drives.

For engineers reviewing the TMS320F28022PTS datasheet, TMS320F28022PTS pinout, TMS320F28022PTS application, or TMS320F28022PTS equivalent, key selection considerations include its 48-pin LQFP package, 50-MHz C28x CPU performance, integrated analog comparators with DACs, dual-sample-and-hold ADC architecture, and support for closed-loop control via HRPWM and eCAP modules.

Technical Context

The TMS320F28022PTS implements a Harvard bus architecture with atomic instruction execution and unified memory mapping, enabling deterministic real-time interrupt response. Its peripheral set includes four ePWM modules (each with independent 16-bit timer and high-resolution extension), one eCAP input, and three 32-bit CPU timers - all coordinated via a dedicated PIE interrupt controller.

On-chip analog integration comprises a 12-bit, 3-MSPS ADC with ratio-metric VREFHI/VREFLO references, dual analog comparators with internal 10-bit DACs routed to PWM trip zones, and an on-die temperature sensor. Clocking is supported by dual zero-pin oscillators, external crystal (X1/X2), or external clock input (XCLKIN), with missing-clock detection and watchdog timer.

Key Specifications

Pinout & Package

Package: 48-pin Low-Profile Quad Flatpack (LQFP), body size 7.0 mm × 7.0 mm, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28023PTS and TMS320F28026PTS, the TMS320F28022PTS offers optimal balance of cost, 50-MHz deterministic control, and integrated analog resources for mid-tier industrial inverters - delivering full HRPWM, comparator-triggered protection, and 3-MSPS ADC without over-specifying flash or CPU headroom.

Availability

TMS320F28022PTS is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, air conditioner outdoor units, and AC-input BLDC motor drives requiring stable component supply across multi-year production cycles.

Supply support for TMS320F28022PTS 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, specializing in analog, embedded processing, and digital signal processing technologies.

The TMS320F28022PTS belongs to TI's C2000™ real-time control MCU family, designed specifically for closed-loop control in power electronics, motor drives, and digital power conversion - emphasizing deterministic timing, analog integration, and code compatibility across generations.

FAQ

What is the maximum operating frequency of the TMS320F28022PTS?

The TMS320F28022PTS operates at a maximum CPU frequency of 50 MHz, corresponding to a 20-ns instruction cycle time. This is confirmed in the device comparison table and functional specifications section of the SPRS523P datasheet. The 50-MHz rating applies specifically to the TMS320F28022 variant (including TMS320F28022PTS), distinguishing it from the 60-MHz TMS320F28026 and 40-MHz TMS320F28021 variants. All timing parameters - including ADC conversion, ePWM resolution, and interrupt latency - are specified under this 50-MHz condition.

Does the TMS320F28022PTS support high-resolution PWM (HRPWM)?

Yes, the TMS320F28022PTS supports High-Resolution PWM on all four ePWM modules (ePWM1A/2A/3A/4A), enabling sub-nanosecond duty-cycle adjustment. This capability is explicitly documented in the Device Comparison table (Table 6-1) and functional block diagram. HRPWM allows dual-edge modulation critical for minimizing dead-time distortion in SiC and GaN-based inverter stages - a feature shared across the F2802x family but implemented in hardware within the ePWM subsystem of the TMS320F28022PTS.

How many analog-to-digital converter (ADC) channels does the TMS320F28022PTS have?

The TMS320F28022PTS includes a 12-bit ADC with 7 input channels (Group A: ADCINA0–ADCINA7, excluding ADCINA5), as verified in Table 6-1 and Section 7.2.1 of the datasheet. It supports dual sample-and-hold and ratio-metric referencing using VREFHI/VREFLO. While the 48-pin package exposes 13 total ADC-capable pins (7 Group A + 6 Group B), only 7 channels are enabled and functional in the TMS320F28022PTS silicon - consistent with its 50-MHz, mid-tier positioning in the F2802x family.

Is the TMS320F28022PTS pin-compatible with other F2802x devices in the 48-pin LQFP package?

Yes, the TMS320F28022PTS shares identical pinout and package (48-pin PT LQFP) with TMS320F28023PTS, TMS320F28026PTS, TMS320F28027PTS, and other PT-suffixed F2802x variants. Pin assignments - including power, GPIO, ADC, ePWM, and JTAG signals - are fully aligned per Figure 7-1 and Table 6-1. However, functional differences exist: eCAP count, comparator availability, flash size, and CPU speed vary between variants, so firmware and peripheral initialization must be validated per device.

What temperature grade is specified for the TMS320F28022PTS part number suffix 'S'?

The 'S' suffix in TMS320F28022PTS denotes the extended industrial temperature grade of –40°C to +125°C, as defined in Section 1. Features and Table 6-1 of the datasheet. This rating applies to the entire silicon die and packaging, and is validated across electrical specifications including ADC accuracy, ePWM timing, and flash retention. It is distinct from the 'T' grade (–40°C to +105°C) and automotive 'Q' grade (AEC-Q100 qualified).